中国水土保持科学
中国水土保持科学
 
 
 
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2019 Vol.17 No.4　　Published 2019-08-31
  
 
Foundamental Studies
1 JIANG Qiuling, XIN Zhongbao, YU Xinxiao, FAN Dengxing
Factors affecting the initial runoff time of Platycladus orientalis plantation hillslope in Beijing mountainous area
[Background] The rainfall in Beijing is mainly concentrated in summer and autumn, and it usually falls in high intensity, which makes the mountainous area of Beijing become a region prone to mountain torrents and sediment flow disaster. These natural disasters have caused huge losses to the infrastructure and people's lives and property in the mountainous areas of Beijing. Over the past few decades, Beijing has carried out a large number of water conservation forests in mountainous areas. Forest vegetation plays an important role in conserving water sources, reducing flood peak flow and delaying flood time. Defining the initial runoff time of the forest hillslope and its influencing factors can promote the understanding of watershed runoff and confluence, and provide guidance for rational allocation of soil and water conservation measures.[Methods] The hillslope of Platycladus orientalis plantation in mountainous areas of Beijing was selected as the object of this study. Eight plots with different slope length (1, 2 and 5 m) were built and three rainfall intensities (70, 92 and 126 mm/h) and two types of hillslope treatment (litter-covered plots and bare-soil plots) were implemented. Total of 48 artificial simulated rainfall events were carried out in the field in order to study the effect of factors such as rainfall intensity, litter and slope length on the initial runoff time of the Platycladus orientalis plantation hillslope.[Results] 1) Rainfall intensity was the dominant factor that determined the initial runoff time of hillslope. The initial runoff time decreased rapidly with the rainfall intensity decreasing, and there was a significant power function relationship between them. 2) Litter obviously delayed the beginning of runoff. When the rainfall intensity was 70 mm/h, runoff in the 1 m long plots did not occur for 60 min rainfall under the cover of litter, while the average initial runoff time in 1 m long plots was 480±174 s under bare soil. The average initial runoff time of litter-covered plots under other rainfall intensities and slope length was 139 s longer than that of bare-soil plots. 3) With the increase of slope length, the initial runoff time of the litter-covered plots and bare-soil plots both showed a decreasing trend. 4) The initial runoff time of P. orientalis plantation hillslope was mainly affected by rainfall intensity and litter, and their contribution rates to the initial runoff time were 59.8% and 23.9%, respectively.[Conclusions] The main factors influencing the initial runoff time of P. orientalis plantation hillslope are rainfall intensity and litter, and the litter layer in the mountainous areas of Beijing plays an important role in slowing the runoff formation when heavy rain occurs.
2019 Vol. 17 (4): 1-8 [Abstract] ( 417 ) [HTML 1KB] [PDF 922KB] ( 1696 )
9 LI Ping, WANG Dongmei, DING Cong, REN Yuan
Distribution characteristics of soil saturated hydraulic conductivity and soil bulk density in a small watershed in the alpine zone of the Loess Plateau
[Background] Soil saturated hydraulic conductivity Ks and bulk density ρs under different soil depth,slope positions and slope aspects have important effects on soil water distribution and rainfall infiltration in the catchment. However, few reports on this issue in the alpine zone of the Loess Plateau are available.[Methods] In order to clarify the response of two soil physical parameters (ρs and Ks) to soil depth, slope aspects, and slope position of small watershed, 72 sample points were selected in typical small watershed of this region by grid sampling method. The undisturbed soil cores of 0-60 cm soil layers were taken at intervals of 20 cm depth. And the data of Ks and ρs were determined by the constant water-head method and oven-drying method, and then were analyzed using classical statistics and variance analysis.[Results] 1) In small watershed, the Ks was 1.018 mm/min in moderate variability, and the ρs was 1.257 g/cm3 in weak variability, all of them had a normal distribution, and there was a significantly negative correlation between Ks and ρs. Meanwhile, Ks and ρs both were significantly correlated with soil porosity and soil particle-size distribution. The correlation between Ks and sand content was the highest, but the correlation coefficient was only 0.276. The correlation coefficient between ρs and total porosity and capillary porosity were the largest, both of which were greater than 0.890. 2) The series for Ks according to soil depth was:1.20 mm/min(0-20 cm) > 1.09 mm/min (20-40 cm) > 0.84 mm/min (40-60 cm), with a moderate degree of variation and no significant difference (P>0.05). The ρs increased with the deepening of soil layer and was the degree of weak variation and no significant difference (P>0.05). 3) The mean value of Ks was as follows:lower position (1.17 mm/min) > middle position (1.21 mm/min) > upper position (0.75 mm/min), and ρs mean value was upper position (1.29 g/cm3) > middle position (1.24 g/cm3) > lower position (1.22 g/cm3) in different slope positions. 4) The order of Ks in different slope aspects were as follows:north-facing slope (1.34 mm/min) > south-facing slope (1.26 mm/min) > east-facing slope (0.53 mm/min), while the overall performance of ρs was opposite to Ks. And the value of ρs was:north-facing slope (1.21 g/cm3) < south-facing slope (1.25 g/cm3) < east-facing slope (1.28 g/cm3). There were significant differences between different slope aspects (P<0.05).[Conclusions] Soil water conductivity enhanced from top to the bottom of the slope, and was the best in the north-facing slope and the worst in the east-facing slope, but there was no significant difference with the deepening of soil layer in the small watershed.
2019 Vol. 17 (4): 9-17 [Abstract] ( 528 ) [HTML 1KB] [PDF 1046KB] ( 560 )
18 GUO Yingying, LI Suqing
Interspecific associations of dominant species in herbaceous plant communities on Shibahe copper mine tailings
[Background] Revegetation is one of the best ways for recovering copper mine tailings and it also shows favorable ecological, social and economic benefits. Screening the best pioneer herbaceous plant species and their combinations are the prerequisite for revegetation on copper mine tailings.[Methods] Based on the field investigation in naturally-colonized plant communities on Shibahe copper mine tailings of Zhongtiaoshan mining area of Shanxi, we analyzed the interspecific associations and indexes of niche of 11 dominant herbaceous species. We used variance ratio method (VR), M. Godron method, niche breadth, niche overlap and interspecific association methods, including χ2-test, association coefficient (AC), Ochiai index (OI), Pearson correlation coefficients and Spearman rank correlation coefficients.[Results] 1) The positive and negative ratios associations of Pearson correlation coefficient and Spearman rank correlation coefficient of 55 species-pairs among 11 dominant herbaceous species in naturally colonized herbaceous plant communities were <1 and most species-pairs had no significant interspecific correlation. The overall association of 11 dominant species had also no significantly negative correlation, which was consistent with the results of variance ratio (VR), AC and OI. 2) The 11 dominant herbaceous species were classified into 3 ecological species groups by clustering analysis based on the Spearman rank correlation coefficients and most species-pairs belonging to the same ecological species group with positive correlation. Soil moisture was the key factor caused the differentiation of 3 ecological species group. 3) The niche overlap index of 11 dominant herbaceous species was <0.4 and its results were consistent with the interspecific associations. Among them, the dominant species Phragmites australis, Bolboschoenus planiculmis, seedling of Salix babylonica and Scirpus yagara with great niche breadth had strong ecological adaptability to tolerate the poor soil of copper mine tailings, and thus was recommended as the best pioneer species for future revegetation on copper mine tailings. The dominant species-pairs B. planiculmis-seedling of S. babylonica, B. planiculmis-S. yagara, and S. yagara-seedling of S. babylonica showed significantly positive associations, while the P. australis showed significantly negative associations with other 10 dominant species.[Conclusions] The community structure of the naturally colonized herbaceous plants on Shibahe copper mine tailings of Zhongtiaoshan mining area was unstable, and they were still in the early stage of succession. The interspecific associations were loose and no obvious competitive relationship between dominant herbaceous species. The dominant species B. planiculmis, seedling of S. babylonica and S. yagara could be mixed planting in future revegetation on local copper mine tailings, while P. australis couldn't be mixed planting with other 10 dominant species.
2019 Vol. 17 (4): 18-25 [Abstract] ( 260 ) [HTML 1KB] [PDF 2714KB] ( 502 )
26 WANG Xiaoxuan, ZUO Xiaoqing, YANG Zenan, ZHANG Yanmei, XIE Wenbin
Spatio-temporal changes of precipitation in Chengdu from 1980 to 2016 based on Mann-Kendall test and information entropy
[Background] According to studies from the International Intergovernmental Panel on Climate Change (IPCC), the global climate has undergone profound changes during the past ten decades, so has the process mechanism and spatio-temporal distribution pattern of precipitation in recent years. Precipitation plays a crucial role in the water cycle, and energy flow among the atmosphere, vegetation, soil, and other systems, resulting in remarkable environmental disturbances. Chengdu city is located in Sichuan Basin of southwestern China, characterized by the subtropical humid monsoon. Studying the characteristics of precipitation in Chengdu city may provide a significant scientific basis and theoretical support for management of water resources and warning of meteorological disaster here.[Methods] Based on the daily precipitation data of 14 meteorological stations in Chengdu city from 1980 to 2016, the one-dimensional trend of precipitation in this area was studied using simple regression analysis. The abrupt variability of precipitation in time series was detected by the Mann-Kendall method, and the uncertainty and stability of the precipitation were detected by information entropy. On this basis, the visual expression of information entropy distribution regarding regional precipitation was analyzed through the technology of GIS (geographic information system).[Results] 1) The chronological changes of precipitation from 1980 to 2016 present variability, with the highest value of precipitation in 2013 at 1 274.77 mm and the lowest in 1997 at 768.6 mm. The average annual precipitation over the Chengdu city is 950.10 mm, showing a trend of gradual decrease with a tendency of -2.049 mm/a. The changing tendency of seasonal precipitation is less obvious. No significant decrease of precipitation (P>0.05) is found in spring, summer, autumn and winter, and neither significant increase in autumn. 2) Chengdu city has much uneven rainfall distribution. The average precipitation decreases from the east to the west, with the center located in hilly regions of the eastern hilly region and the lowest in the northern side of the western foothills region. The uncertainty of precipitation varies with time units. 3) The information entropy reaches the highest for annual precipitation, followed by summer precipitation, spring and autumn precipitation, and monthly precipitation in order. It indicates that the summer rainfall tends to be as rich and steady as ever, and the precipitation in autumn and spring will become increasingly changeable and difficult to be forecasted accurately and timely.[Conclusions] In recent decades, the precipitation in Chengdu city has exhibited certain temporal and spatial variation. The changing tendency and uncertainty of precipitation in Chengdu city has a close correlation with regional and global climate change. Nevertheless, the specific and detailed process mechanism remains unclear. It is found in this study that the more the precipitation is, the smaller the information entropy and the more uncertainty the precipitation is.
2019 Vol. 17 (4): 26-33 [Abstract] ( 582 ) [HTML 1KB] [PDF 3538KB] ( 434 )
 
Applied Studies
34 YANG Xin, LIU Gang, XIE Yun, GAO Xiaofei, WANG Xiangying, WANG Da'an, XING Wanjun
Analysis of snowmelt runoff and its formation condition in typical small watersheds in the northern black soil region of Northeast China
[Background] The forecast and formation condition of snowmelt runoff is very significative to understand the process of snowmelt erosion in the northern black soil region of Northeast China. Many studies have focused on the characteristics of snowmelt runoff, however, and the study on the formation condition of snowmelt runoff is deficient.[Methods] Based on the observed data of two small watersheds located in Hesan Farm, Heilongjiang province, the formula of effective accumulated temperature on the initial day of snowmelt is established,regression method was used to establish the functional relationship between snowmelt runoff depth and accumulated snowfall in the winter half year and accumulated rainfall in the autumn,and the functional relationship between effective accumulated temperature and snowfall. The occurrence conditions of snowmelt runoff were established by the above equations and indexes. The data include the daily temperature and snowfall of weather station located in the Hebei watershed from 2005 to 2015,and the spring snowmelt runoff of 2 weirs of small watersheds from 2005 to 2015.[Results] 1) The initial days of spring snowmelt runoff in the small watershed in the study area were mostly from late March to early April. The average snowmelt runoff depth of the study area was 11.9 mm from 2005 to 2015. In the year of snowmelt runoff, an increase of 1 mm in accumulated snowfall in the winter half year resulted in an increase of 0.9 mm in snowmelt runoff depth. 2) The regression equation between the snowmelt runoff depth D (mm) in spring and the accumulated snowfall in winter half year (Ps) and August-October rainfall (Pr) was D=0.91Ps+0.034Pr-21.02. Snowmelt runoff occured when both must meet D>0.3) Under the precondition that the accumulated snowfall reached the snowmelt runoff occurrence, the relationship between accumulated temperature (TA) above the thereshold temperature(-2.8℃) before snowmelt runoff occurred, and the accumulated snowfall in the winter half year (Ps) was regressed by a logarithmic function:TA=18.29ln(Ps)-10.78.[Conclusions] Whether snowmelt runoff occurs depends on accumulated snowfall in winter half year and accumulated rainfall in August to October. The snowmelt runoff depth can be expressed by a linear equation of the accumulated snowfall and rainfall. The initial day of snowmelt runoff occurrence can be calculated by threshold accumulated temperature. This study will help to forecast snowmelt runoff and guide agricultural production.
2019 Vol. 17 (4): 34-40 [Abstract] ( 474 ) [HTML 1KB] [PDF 1967KB] ( 474 )
41 CAI Xiongfei, LEI Li, LIANG Ping, FU Bin, WANG Ji, XU Pei, WANG Yukuan
Mechanism simulation on soil and water conservation of slope farmland side ditch
[Background] Slope farmland side ditch(SFSD)is one of important slope water system engineering measures in the hilly region of southern China, and plays an important role in the protection and management of sloping farmland. This work aims to explore the mechanism of soil and water conservation on SFSD.[Methods] Four field experimental areas from the typical purple soil distribution in Yanting county and Suining city, Sichuan province were selected, in each area 2 plots (plot A and plot B) were set up. By investigation and artificial simulated rainfall experiment (3 rainfall intensities 20 mm/h, 55.48 mm/h, and 110.95 mm/h. Rainfall duration was 40 min) in field, 11 simulation experiments were conducted. After the rainfall began, the runoff generation time of plot A and plot B were recorded respectively, and then one runoff sample was collected every interval of 4~5 min and brought back to the laboratory for analysis and test. After each rainfall, the collector trough in area A was washed, pictures were taken, the sediment in the gutter in area B were measured and removed.[Results] 1) The SFSD had the remarkable capacity for runoff reduction, the runoff reduction rate ranged from 14.08% to 36.72%, and the average value was 24.7%, the runoff reduction rate decreased with the increase of rainfall intensities, soil thickness of sloping farmland was the main factor that affected runoff reduction effect of SFSD. 2) The SFSD had the remarkable capacity for sediment reduction, the sediment reduction rate ranged from 31.93% to 64.95%, and the average value was 50.08%, the sediment reduction rate increased with increase of rainfall intensities. 3) Due to sedimentation influence of SFSD to sediment, the clay and fine particle rate of transporting sediment in plot B (test plot) increased 12.85% on average in comparison with plot A (comparative test plot), while coarse silt and above particles in plot B (test plot) decreased 40.21% on average in comparison with plot A.[Conclusions] The sediment reduction effect of SFSD increases with increase of rainfall intensities, indicating that SFSD is suitable for hilly areas with abundant precipitation in southern China.
2019 Vol. 17 (4): 41-48 [Abstract] ( 428 ) [HTML 1KB] [PDF 1020KB] ( 354 )
49 WANG Hui, LU Debao, HUANG Dongjing, SHAN Chengju
On the erosion characteristics of red soil slope with different gravel existence forms
[Background] Red soil hilly region in southern China is the area of serious soil erosion second only to the Loess Plateau. The presence of gravel in soil affects the hydrological cycle. Most of the existing studies mainly focus on gravel cover and soil erosion, while the effects of rainfall intensity and slope on soil erosion in different gravel forms are seldom studied.[Methods] In order to study the difference of erosion characteristics of red soil slope with different gravel forms, the erosion processes of red soil slope with no gravel (gravel content 0%), 5% gravel-mulching and 5% gravel-embedded red soil slope were studied under 2 rainfall intensities (60 mm/h and 120 mm/h) and 4 slope gradients (10°, 15°, 20° and 25°), based on the indoor artificial rainfall simulation and combined with rainfall and slope characteristics in the upper reaches of Cao'e River of Zhejiang province. Characteristics such as the rainfall runoff generation time, runoff rate, runoff generation process, and sediment yield intensity were compared.[Results] 1) The runoff generation time of 4 slope gradients decreased with rainfall intensity increasing. The total runoff and the amount of sediment yield increased with rainfall intensity increasing. 2) The runoff rate of 4 slope gradients of no gravel and 5% gravel-mulching slopes was approximate when the rainfall intensity was 120 mm/h. Compared with other 3 slope gradients, the runoff rate of 5% gravel-embedded slopes with slope 10° was much lower. 3) With 2 rainfall intensities and 4 slope gradients, the total runoff and the amount of sediment yield of 5% gravel-mulching and 5% gravel-embedded slopes were lower than those of the no gravel slopes. 4) For all slopes, the maximum of sediment yield intensity was found with the slope gradient 25°. When the rainfall intensity was 120 mm/h, the peak value of sediment yield intensity appeared in 25 minutes; and when the rainfall intensity was 60 mm/h, the peak value of sediment yield intensity appeared in 35 minutes.[Conclusions] Gravel-mulching soils are more effective than gravel-embedded soils in inhibiting the formation of surface soil rills, increasing the roughness of rills and reducing the runoff rate of rills under rainfall intensities 120 mm/h. This study provides basic data for quantifying soil and water processes on heterogeneous soil slopes, prediction of soil erosion and application of hydrological models on slopes.
2019 Vol. 17 (4): 49-58 [Abstract] ( 623 ) [HTML 1KB] [PDF 1608KB] ( 502 )
59 LV Chunjuan, CHEN Dan, GUO Xingxing, WANG Yu, GUO Yansong
Water storage capacity and the infiltration characteristics of soil in different reclamation modes in iron tailings
[Background]A large amount of solid waste results from the large-scale mining of iron ore, thus it seriously damages the ecological environment. The soil erosion, environmental pollution and soil degradation occur in the iron tailings area, thus reclamation of iron tailings is very important to improve the ecological quality of mining area. Because the tailings reconstituted soil type is different from the general natural soil, the effects of reclaimed soil types on water storage and infiltration processes remains being discussed.[Methods]In this research, the double-ring infiltration method was used to study the soil infiltration process and water storage characteristics of 6 reclamation patterns (STJ tailings-soil-mushroom residue, ST1 tailings-soil, ST2 tailings-soil, SJ1 tailings-mushroom residue, SJ2 tailings-mushroom residue, and T pure soil) and control bare sand(CK),and three infiltration models of Horton, Philip,and Kostiakov were used to simulate the water infiltration process.[Results] 1)The improvements of soil water storage performance by reclamation were as followed:soil non-capillary water storage > soil saturated water storage > soil capillary water storage. The water-holding capacity in the reclamation mode of mixed mushroom residue (SJ1,SJ2,and STJ)is higher than that in the reclamation patterns of mixed soil (ST1 and ST2). 2)The soils in 6 reclamation patterns had the same trend of average infiltration rate and initial infiltration rate,which was 1.17-4.93 times of the bare sand, and the infiltration performance of pure soil was the best in different reclamation patterns. The average infiltration of mixed mushroom residue (SJ1, SJ2, and STJ)(1.958 mm/min) was higher than that of mixed soil (ST1 and ST2)(1.106 mm/min). 3)The model fitting accuracy analysis showed that Horton model was suitable for simulating the infiltration process of bare tailings and Kostiakov model was the best model to describe the others. 4)For the seven reclamation patterns with short reclamation years,bulk density and porosity were the key factors affecting the infiltration performance of the tailings,and the relationship with vegetation types was not obvious.[Conclusions]The data of this study shows that the soil mixed mushroom residue has higher water storage capacity and infiltration performance, which is beneficial to plant absorption and accelerated vegetation restoration process. Considering the iron ore tail area is lacking soil source, in practice, it can be considered to apply mushroom residue as an modified material in iron tailings to repair the ecological environment, which is conducive to soil and water conservation and sustainable growth of vegetation. The results of water infiltration studies of soils in different reclamation patterns can provide theoretical support for further ecological restoration and soil-water conservation of iron tailings.
2019 Vol. 17 (4): 59-66 [Abstract] ( 545 ) [HTML 1KB] [PDF 919KB] ( 547 )
67 FU Yan, ZHENG Jiangkun, REN Yuzhi, WANG Wenwu, ZEN Qianting, XIANG Minghui, CHENG Xin, ZHANG Yunqi, ZHAO Peng
Effects of rainfall and vegetation change on soil erosion and sediment yield in typical small watershed in hilly area of central Sichuan Basin
[Background] It is found that vegetation plays an important role in soil and water conservation. This paper is to understand the effect of vegetation change on soil erosion and sediment yield in Xiejiawan watershed,a small watershed in hilly area of central Sichuan Basin, under annual and individual rainfall scales.[Methods] Based on the data of rainfall and sediment yield of Xiejiawan watershed over 30 years, RUSLE model was used to calculate the rainfall erosivity of the small watershed. Combined Land-Use and Land-Cover Change (LUCC) with soil and water conservation engineering adjustment, the causes of soil erosion and sediment yield were quantitatively evaluated by the double cumulative curve method and the separation discriminant method during different periods in the small watershed.[Results] 1) During 1986-2016, rainfall and erosive rainfall in Xiejiawan watershed occurred mainly in June, July and August which accounted for 80% of that in all the year. Therefore,soil and water conservation projects should be strengthened in summer. 2) Interannual variability of rainfall and erosive rainfall were not obvious during 1986-2016, meanwhile, annual mean sediment modulus during 1990-2008 was obviously less than the values during 1986-1989 and 2009-2016. Soil erosion and sediment yield decreased dramatically when LUCC changed from farmland to orchard. The soil and water conservation engineering measures were destroyed seriously when the forest land was abandoned, resulting in the amount of soil erosion increased at initial stage of abandoned period and decreased gradually after the restoration of understory herbs at later stage of abandoned period. According to LUCC and the trend of double cumulative curve, the time period was divided into crop period (1986-1989), orchard period (1990-2008) and abandoned period (2009-2016). 3) Taking crop period as the base period, the contribution rates of vegetation and rainfall on sediment reduction were 78% and 22%, respectively when crop was transformed into orchard, which indicated that planting orchard effectively reduced the sediment transport modulus in the small watershed. This was mainly due to the increase of canopy coverage enhanced soil consolidation capacity of roots, and the strengthened repair and management of terrace ridges. 4) Taking orchard period as the base period, the contribution rates of vegetation change and rainfall on sediment increase were 88% and 12%, respectively in abandoned period. As the results of lacking land management and drainage, terrace ridges were damaged a lot, which increased sediment yield. Furthermore, sediment yield was positively correlated with rainfall during crop period. Sediment yield was directly related to vegetation coverage and the improvement of terrace ridge measures during orchard period and abandoned period. The sediment reduction effect of vegetation coverage was obvious in a certain range of rainfall erosivity. When the vegetation coverage exceeded the critical value, the sediment reduction effect of vegetation became weaker.[Conclusions] When other conditions remain unchanged, soil erosion and sediment yield is reduced significantly by increasing surface coverage. It plays an important guiding role in soil and water conservation in purple soil watershed by increasing tree and shrub layer, laying soil and water conservation projects, and effective field management.
2019 Vol. 17 (4): 67-74 [Abstract] ( 500 ) [HTML 1KB] [PDF 995KB] ( 382 )
75 DU Tao, WANG Dongmei, ZHANG Zezhou, ZHAO Xueqing, ZHANG Ziyue, ZHANG Ruchong
Effect of the water-retaining property of coal gangue planting substrate on the growth of Lolium perenne
[Background] As the main solid waste produced in the process of coal production, coal gangue has seriously affected the ecological environment and people's life safety. Meanwhile, the backfilling of borrowing soil has become the main method of ecological restoration in China's coal mines, most of which are located in areas short of water and land resources. Therefore, it is of great significance to explore the planting substrate with coal gangue as the main material for realizing the resource utilization of coal gangue and alleviating the shortage of water and soil resources in coal mine areas.[Methods] In this study, orthogonal test was used to add different proportions of corn straw, fly ash and water-retaining agent into the coal gangue-soil mixture to explore the proportion of the optimal water-retaining property. On the basis of the optimal proportion, different water gradients were set up and ryegrass was planted.[Results] The results show that the ratio of coal gangue-soil at 500 g:500 g reduced the bulk density of the substrate and improved the porosity, soil moisture content, saturated water content and field water-holding rate of the substrate. The addition of 50 g maize straw can significantly improve the physical properties of the substrate and increase the soil moisture content, saturated water content and field water-holding rate (P<0.01). When 75 g of fly ash was added, the water characteristic value of the substrate was relatively high. Adding 2 g water retaining agent can improve the soil moisture content, saturated water content and field water-holding rate. In the water stress test, ryegrass planted on coal gangue planting substrate still had a good growth condition (germination rate, plant height, biomass, chlorophyll content) under mild water stress and was still higher than or close to the soil control group under moderate water stress.[Conclusions] In conclusion, coal gangue planting substrate is suitable for ecological restoration in coal mine areas where water and soil resources are scarce. And the proportion of the optimal water-retaining property which were as follows:a coal gangue-to-soil ratio of 500:500 (g:g), corn straw content of 50 g/kg, fly ash content of 75 g/kg, and water-retaining agent content of 2 g/kg.
2019 Vol. 17 (4): 75-84 [Abstract] ( 639 ) [HTML 1KB] [PDF 1108KB] ( 496 )
85 ZHANG Jingjing, ZHAO Yongqin, XU Liang, HUA Dangling, YANG Qiuyun
Immobilization and remediation of Cd contaminated soil treated with bentonite, lignite and their mixture
[Background] In situ immobilization of heavy metal in contaminated soils with amendments decrease the bioavailability of heavy metals by changing occurrence state of heavy metals in soils, resulting from the reactions of dissolution/precipitation, exchange/adsorption, oxidation/reduction and organic complex. This method has been considered as an important and non-replaceable measure for heavy metal contaminated soil remediation. Natural materials and industrial by-products with high sorption characteristics can be used to the remediation of heavy metal contaminated arable soils, and different amendments have different effects on contaminated soils. Bentonite is a kind of clay mineral dominated by montmorillonite while lignite is rich in humic acid with very low cost. Most current studies use a single passivating agent, and few studies combine organic lignite and inorganic bentonite for heavy metal contaminated soil remediation.[Methods] Pot experiments were conducted to investigate the effects of bentonite (S) and lignite (P) on the occurrence state of cadmium in soils and the uptake of cadmium in different parts of maize growing in contaminated soils sampled from Jiyuan city, Henan province. The addition amounts of bentonite (S) and lignite (P) were 1.5%, 3%, and 5% respectively, and the mixture treatment was based on the orthogonal experimental design. BCR (European Community Bureau of Reference) sequential extraction method was used to assess the remediation effects of amendments on soils polluted by cadmium after incubation and seedling stage.[Results] The mixture of bentonite and lignite in different proportions reduced cadmium content in stem, leaf and roots by 22.2%-49.9% and 9.7%-40.6%, respectively. All the treatments, mixed addition or alone, increased plant height and dry biomass of aboveground part, and decreased the enrichment of cadmium in stem, leaf and roots in contrast to the CK. After immobilization and remediation, the content of cadmium extracted from weak acid in soil was converted to more stable forms. There was no significant difference by bentonite addition alone, while lignite alone significantly reduced the weak acid soluble content of soil Cd. The mixed treatment of bentonite and lignite worked well, and decreased the weak acid extractable content of soil Cd by 10.4%-31.1%.[Conclusions] Regarding the stabilization and remediation effect, lignite treatment worked better than bentonite treatment, and a combination for these two amendments worked the best, which may provide scientific basis for the safety utilization of calcareous soil polluted by cadmium.
2019 Vol. 17 (4): 85-92 [Abstract] ( 482 ) [HTML 1KB] [PDF 938KB] ( 397 )
93 TAN Jin, YANG Jianying, HOU Jian, HU Ping
Relationship of spatial pattern between different Zygophyllaceae shrubs and soil nutrients around Wuhai city
[Background] Plants have a very important influence on soil resources and soil availability. It is very necessary to deeply understand the relationship between soil resources and plants and to determine their ecological functions in the ecosystem. Because of the bad climate and environment in Wuhai city in the arid area of western Inner Mongolia, the water and vegetation in this area are scarce. Therefore, it is necessary to deeply understand the relationship between plants and soil resources in this area, in order to provide a theoretical basis for future soil management and scientific research.[Methods] Nine vegetation communities including Zygophyllaceae shrubs around Wuhai city were found, they were community 1 Nitraria tangutorum + Artemisia desertorum, community 2 Tetraena mongolica, community 3 N. tangutorum + Sarcozygium xanthoxylon + Caragana sinica, community 4 S. xanthoxylon, community 5 N. tangutorum, community 6 T. mongolica + Reaumuria songarica + Salsola passerine, community 7 S. xanthoxylon + Caragana stenophylla, community 8 T. mongolica + Reaumuria songarica, and community 9 N. tangutorum + R. songarica + S. passerina. Three shrub plots were set up in each community to investigate the growth and distribution of shrubs. One of the most statistically significant plot was selected to establish the coordination system. Soil samples were collected at intervals of 1 m,and the contents of total nitrogen, total phosphorus and organic matter were determined. Finally, the IGPS(Integration of geostatistics) method combined with semi-variance model and point pattern model was used to analyze the relationship between soil nutrients and plants based on the distribution.[Results] 1) The results of semi-variance model and point pattern analysis were compared, and which showed that there was no correlation between total nitrogen and Zygophyllaceae shrubs. The aggregation scale between T. mongolica and total phosphorus(TP) was larger than the patch size of TP in the community 2 and 8, while there were no correlations between T. mongolica and total phosphorus in the community 2 and 6, and they were randomly distributed. N. tangutorum and S. xanthoxylon only showed an aggregation relationship with total phosphorus in community 3. The total phosphorus patch was affected by 2.5 N. tangutorum and 2.5 S. xanthoxylon plants. 2) There were organic matter patches larger than the research scale in the community 3, but they didn't correlate with Zygophyllaceae shrubs. The aggregation scale between S. xanthoxylon and organic matter was larger than the patch size of organic matter in the community 4, thus there were organic matter patches under the S. xanthoxylon canopy. The organic matter patches were all affected by many Tetraena mongolica in the community 2 and the N. tangutorum in the community 3, and the number of plants was 1.5 and 2.[Conclusions] IGPS method was used to quantify the spatial pattern relationship between Zygophyllaceae shrubs and soil nutrients in the surrounding areas of Wuhai city, and the result reveals the range of root or crown of the shrubs to a certain extent. In vegetation restoration, T. mongolica can be used to aggregate total phosphorus, and T. mongolica, S. xanthoxylon or N. tangutorum can be used to aggregate soil organic matter.
2019 Vol. 17 (4): 93-103 [Abstract] ( 447 ) [HTML 1KB] [PDF 6461KB] ( 539 )
104 CHEN Yuxuan, DING Guodong, GAO Guanglei, ZHANG Ying, ZHAO Yang, WANG Long
Content characteristics of organic matter and calcium carbonate of Aeolian soils in Hulun Buir Sandy Land
[Background] Soil organic matter (SOM), playing an important role in increasing the stability of soil aggregates, effectively leads to a reduction of wind erosion. Soil calcium carbonate (CaCO3), existing massively in the arid and semi-arid soil, also significantly affects soil wind erodibility. Thus revealing the content characteristics of SOM and CaCO3 helps understand the process of wind erosion. Previous studies show that SOM has an effective role to play in the generation process of CaCO3, thus there is a positive correlation between the content of SOM and CaCO3. Due to the climate change and anthropogenic activities in Hulun Buir Sandy Land in the north China, desertification there tends to be inexorable and more severe than before.[Methods] The study was conducted in the Hulun Buir Sandy Land. Total 93 sampling sites relating to mobile, semi-fixed and fixed sand dunes were located by GPS. Three sample plots nearby each sampling site were set up randomly. Aeolian topsoil (0~5 cm) were selected. SOM was determined using potassium dichromate volumetric method, while CaCO3 was measured using a calcium ion concentration meter. Spatial variations of SOM and CaCO3 were calculated and analyzed based on the theory of semi-variogram. Significant differences and correlation of data in different type of sand dunes were identified by SPSS16.0 statistical software, while spatial variation of that was analyzed by ArcGIS10.2 and GS+win10 software.[Results] 1) The average content of SOM and CaCO3 in the topsoil of Hulun Buir Sandy Land were 31.05 and 2.73 g/kg, respectively. During sand dune fixation, the content of SOM and CaCO3 continuously increased. SOM content in mobile sand dunes was significantly lower than that in semi-fixed and fixed sand dunes, but CaCO3 content in mobile sand dunes was just significantly lower than that in fixed sand dunes. 2) The content of CaCO3 was positively correlative with the content of SOM by power function (R2=0.539,P<0.01). While the content of CaCO3 in mobile, semi-fixed and fixed sand dunes were also positively correlative with the content of SOM, with R2 were 0.580, 0.630 and 0.245 respectively. With the increasing content of CaCO3, the growth rate of SOM in fixed sand dunes was lower than that in mobile and semi-fixed sand dunes. 3) During sand dune fixation, the spatial variation of SOM and CaCO3 were increasing, the distribution of SOM and CaCO3 tended to be homogeneous, and the influence of random factors on the spatial variability of organic matter was getting more important. Structural factors of soil were the main cause of the spatial variation of SOM and CaCO3 in Hulun Buir Sandy Land.[Conclusions] During sand dune fixation, the decreasing intensity of soil erosion may influence the content, correlation and spatial variation of SOM and CaCO3. The results of this study may provide theoretical reference for regional desertification combating and ecological restore.
2019 Vol. 17 (4): 104-111 [Abstract] ( 452 ) [HTML 1KB] [PDF 973KB] ( 444 )
112 WU Siying, WANG Xiaoqin, ZENG Shujiao, LIN Jinglan, CHEN Miaojin
Estimation and analysis of soil erosion in Anxi county based on CSLE
[Background] Soil erosion leads to a decline in land productivity and a sharp deterioration of the ecological environment. It is one of the most prominent problems in China's ecological environment, and it is also a global disaster. Anxi county, located in the red soil area of southern China, the collapse in low vegetation and the disorderly reclamation and the lack of management of tea gardens make Anxi county the most serious soilerosion county in Fujian province. The use of remote sensing technology to estimate soil erosion is effective method that may quickly provide a scientific theoretical basis for local soil and water conservation and ecological environment construction, and has important practical significance.[Methods] In recent years, the soil erosion model has been widely used in soil erosion monitoring. Based on the CSLE soil erosion model, this paper quantitatively estimated the soil erosion modulus of Anxi county in 2015, and used soil erosion rate and soil erosion index to analyze the spatial distribution characteristics of soil erosion in Anxi county and its relationship with slope and altitude.[Results] 1) The soil erosion in Anxi county was still serious. In 2015, the average soil erosion modulus of Anxi county was 379.72 t/(hm2·a), and the average soil erosion modulus of soil erosion area was 1 029.02 t/(hm2·a). 2) In 2015, the total area of soil erosion in Anxi county reached 638.09 km2, and the loss rate was as high as 21.31%, light loss with an area of 472.66 km2, accounting for 74.04% of the total loss area, and the area of strong loss and above accounted for a small proportion, and about 2.94% of the total lost area. 3) Soil erosion was mainly distributed in the north-central and southern regions of Anxi county, and the soil erosion was the most serious in the Shuangxi River Basin and the Dashe River Basin, the soil loss rate were 29.00% and 32.19%, respectively. The soil erosion index of these two basins was >4, also indicating the severity of soil erosion in these two basins. 4) The soil erosion in the >15-25° slope zone and the altitude of 200-500 m was the most serious. The >15-25° slope in-band loss area accounted for about half of the total loss area of the county. The soil erosion rate in the 200-500 m elevation was higher than that 20%. Because the slope of >15-25° was of excessive reclamation and steep slope planting, and 200-500 m was an activity-intensive elevation belt, which also exacerbated soil erosion.[Conclusions] Due to the excessive reclamation of tea gardens and the failure of conducting land management according to the standard and collapsing hill, the overall situation of soil erosion in Anxi county is more serious. Relevant organizations should determine the key control areas for soil erosion, formulate soil erosion protection measures and improve soil erosion according to different causes of soil erosion, and therefore ensure the safety of the ecological environment.
2019 Vol. 17 (4): 112-121 [Abstract] ( 510 ) [HTML 1KB] [PDF 4484KB] ( 505 )
122 XIE Dongfeng, WANG Huatian, ZHANG Guangcan, ZHANG Cai
Physiological responses of Prunus sibirica seedlings to drought stress
[Background] Many rominent problems,such as thin soil,destruction of arid vegetation,water and soil loss, and ecological deterioration present in the abandoned diggings. Artificial recovery of forests is a quick and effective approach to restore the ecology of such regions. The primary problem of vegetation restoration is to select suitable plant species.[Methods] Potted one-years-old seedlings of Prunus sibirica were used in this study, and drought stress was controled by natural evapotranspiration.The control group was conducted by normal water management. The experimental group was subjected to drought stress treatment. The soil water potential (Ψs), leaf water potential (Ψl) and the gas exchange parameters, such as net photosynthetic rate (Pn), transpiration rate (Tr),stomatal conductance (Gs), intercellular CO2 concentration (Ci), atmosphere CO2 concentration (Ca), atmosphere relative humility (RH), air temperature (ta), leaf temperature (tl) and photosynthetic active radiation (PAR) were measured. The physiological responses of P. sibirica to drought stress were analyzed, and its drought resistance mechanism was expolored.[Results] 1) The results indicated that the Ψs and Ψl of the control group and atmosphere water potential (Ψa) demonstrated a very small fluctuation. Furthermore, Ψs and Ψl of the experimental group were on a downward trend in the consecutive 7 days of soil drought stress. The decrease range of Ψl was obviously less than that of Ψs because leaves of P. sibirica absorbed atmospheric condensation. 2) The daily averages of Tr, Pn and Ci of P. sibirica in the control group in consecutive 4 days presented little changes. With soil drought stress condition lasting, the daily averages of Tr and Pn of P. sibirica of the experimental group in consecutive 4 days decreased significantly and its daily averages of Ci increased significantly (P<0.05), respectively. The threshold value of Ψs was -0.27 MPa in which, photosynthetic limitation was changed from stomatal to non-stomatal. 3) As the effect of tissue water capacitance (C) and water suction (ΔΨs-l) of P. sibirica in the experimental group, the diurnal fluctuation of Ψl lagged those of Ψs, when Ψs was above the mean value of permanent wilting point of most plants (-1.5 MPa).In addition, diurnal fluctuation of Ψl and Ψs stayed synchronously, when Ψs was below it.[Conclusions] P. sibirica has an adaption to drought environment with the mechanisms of absorbing atmospheric condensation, enhancing the ΔΨs-l, tissue releasing water, and stomatal adjustment, and can be used as suitable plant species for ecological restoration and barren mountain afforestation in diggings area.
2019 Vol. 17 (4): 122-129 [Abstract] ( 501 ) [HTML 1KB] [PDF 950KB] ( 390 )
130 TU Zhihua, FAN Zhiping, WANG Shanxiang, QIN Yiting, ZOU Yihua, YANG Zhaoming, WANG Jun, WEI Yongjian, WANG Qiong
Soil microbial biomass properties and its controlling factors under different vegetation types of water conservation forests in Dahuofang Watershed
[Background] Soil microbial biomass is the most active part of soil organic matter, which can be used to characterize soil property, and plays an important role in the process of biogeochemical cycling of carbon and nitrogen. Investigating the character of soil microbial biomass under different water conservation forests could be helpful in the construction of water conservation forest in Dahuofang Watershed.[Methods] In order to clarify the effect of vegetation type on soil microbial biomass, a field experiment was conducted in 4 different vegetation types (Larix gmelinii, Pinus koraiensis, Pinus tabuliformis, and Robinia pseudoacacia) of water conservation forests in Dahuofang Watershed. We measured soil microbial biomass carbon (MBC) and microbial biomass nitrogen (MBN) and analyzed the response of soil microbial biomass to soil physical-chemical properties and litter nutrient content by path analysis model.[Results] 1) The content of soil organic carbon (SOC), total nitrogen (TN), ammonium nitrogen (NH4+-N), and nitrate nitrogen (NO3--N) were significantly higher in R. pseudoacacia natural secondary forests than other three vegetation types (P<0.05), which decreased gradually with increasing soil depth. The range of C/N was 11.17-16.42, and the content of soil NH4+-N accounted for 77% of soil total inorganic nitrogen. 2) The content of MBC and MBN were 92.69~562.55 mg/kg and 64.10-193.42 mg/kg, respectively, which were in the order of R. pseudoacacia natural secondary forests > P. tabuliformis plantation > L. gmelinii plantation > P. koraiensis plantation. The content of MBC and MBN in 0-10 cm soil layer were 1.83-2.55、1.18-1.62 times more than those in 10~20 cm soil layer, respectively. 3) The ration of MBC/MBN was 1.40-3.15, and soil microbial biomass carbon entropy (qMBC) and nitrogen entropy (qMBN) were 0.38%-0.81%、3.26%-3.59%, respectively. 4) There was a significant positive correlation between microbial biomass and soil physical-chemical properties and litter nutrient content. Path analysis showed that the TN,NH4+-N, NO3--N,SOC and SWC (soil water content) were the most important factors affecting soil microbial biomass in different vegetation types of water conservation forests in Dahuofang Watershed.[Conclusions] The content of MBC, MBN and litter nutrient content in R. pseudoacacia natural secondary forests was higher than other three vegetation types, which suggests that R. pseudoacacia natural secondary forests better improves soil quality than coniferous plantations. Our results impliy that we should pay more attention to the protection of R. pseudoacacia natural secondary forests in the Dahuofang Watershed in order to improve soil quality.
2019 Vol. 17 (4): 130-140 [Abstract] ( 397 ) [HTML 1KB] [PDF 1062KB] ( 418 )
141 WANG Meilin, JIANG Qun'ou, SHAO Yaqi, SUN Siyang
Spatio-temporal variation of soil moisture and analysis on its influencing factors in Maqu county based on TVDI
[Background] Maqu is a significant water conservation area of the Yellow River and an ecologically fragile area, which is located on the eastern edge of the Qinghai-Tibet Plateau. Studying the dynamic changes of soil moisture and its influencing factors have important practical significance for water resources and ecological security in the Qinghai-Tibet Plateau.[Methods] In this study, the temperature vegetation drought index (TVDI) method was used to invert the soil moisture of Maqu county from 2000 to 2015, then the spatial distribution and temporal variation characteristics of soil moisture were analyzed, and finally the correlation analysis and multiple linear regression models were applied to explore the key factors affecting soil moisture.[Results] 1) The soil moisture in the Maqu area from 2000 to 2015 showed a downward trend as a whole, with signs of drought, and the spatial differentiation characteristics and seasonal variation of soil moisture were significant. Among them, the spatial distribution pattern of soil moisture gradually decreased from northwest to southeast, and the overall dry and wet grade was dominated by normal (0.5[Conclusions] Therefore, it is necessary to control the population growth, increase vegetation coverage, actively respond to climate changes to reduce the adverse effects of temperature on soil moisture and so on, so that the soil moisture of the surface of Maqu is maintained in a fine condition, providing a certain guarantee for the runoff of the Yellow River. These research results will provide important reference information for water resources and ecological environment research in the Yellow River source area.
2019 Vol. 17 (4): 141-152 [Abstract] ( 576 ) [HTML 1KB] [PDF 7088KB] ( 470 )
 
Engineering Studies
153 XU Wensheng, NIE Wenting, WANG Yifeng, SHEN Shengyu, ZHANG Pingcang
On a supervising scheme of soil and water conservation for super large disposal areas in production and construction projects
[Background] Along with deepening of the Ecological Civilization and the reform of Streamlining Administration, Delegating Power, Strengthening Regulation and Improving Services, effective supervising of disposed slags, especially the super large disposal areas, becomes one of the most important technical focuses in soil and water conservation monitoring. At present, based on the combined techniques of remote sensing, UAV and ground observation, monitoring of soil and water conservation has gained great achievements. However, subjecting to limitations of endurance and flying requirements, the existing technologies could not provide real-time and effective monitoring results for super large disposal areas.[Methods] Technologies of video surveillance, survey monitoring, ground observation and UAV remote sensing were combined to establish a supervising scheme of soil and water conservation for super large disposal areas according to related technical specification and regulations. Because methods of survey monitoring, ground observation and UAV remote sensing have been proverbially understood by technicians, the key technical points of video surveillance were selectively expounded.[Results] 1) First, a general scheme of soil and water conservation monitoring was put forward for super large slag disposal field. 2) Then, the video surveillance technologies were stated from three aspects:information collection, information storage and transmission, and information management and use. Information collection is accomplished by the front-end camera, and the cameras should be arranged reasonably according to the disposal area scene. Information storage is completed by the large capacity storage hard disk installed in the front-end camera. Information transmission is based on the 4G wireless network technology, information is computed to determine timing or selective transmission, and the computation is carried out with the intelligent monitoring software installed in the front-end camera. Information management and use is accomplished by the information management centre. The centre receives, stores, aggregates and analyzes information transferred from the front-end unit camera. Based on the centre, the information from the client unit can be exchanged with that from the front-end camera, and then the client unit may effectively monitor the slag disposed field. 3) Finally, the integration of video surveillance technology and other methods is analyzed. Based on the information management centre, different types of data information are divided into 3 categories:data layer, feature layer and decision layer. The data layer is original information, and the feature layer is formed by logical association of original information, which has a unified data format. The decision layer is the result of soil and water conservation monitoring, which is acquired from the feature layer computation. It corresponds to specific indicators. Based on the decision level, the information management centre outputs the monitoring results of soil and water conservation, including quarterly results, annual results, summative results or thematic results. At the same time, the centre can realize three-dimensional browsing, analysis and in-situ monitoring of the slag field.[Conclusions] The established scheme can be used in practical soil and water conservation supervising for super large disposal areas, and it is simple and practical. More importantly, it can effectively improve the monitoring skill of super large disposal areas, as to promote the construction and development of ecological civilization in China.
2019 Vol. 17 (4): 153-159 [Abstract] ( 543 ) [HTML 1KB] [PDF 992KB] ( 508 )
 
Research Review
160 HE Xiubin, BAO Yuhai
Research advances on soil erosion and ecological restoration in the riparian zone of the Three Gorges Reservoir
[Background] Compared to the riparian zones of unregulated rivers, the riparian zone of the Three Gorges Reservoir (TGR) experiences relatively longer-duration artificial flooding and with high dynamic morphological changes. Reservoir riparian zone represents a hydrogeomorphological and biogeochemical ecotone between aquatic and terrestrial ecosystems and have been well recognized as a key area for maintaining ecosystem goods and services. However, this zone is ecologically fragile due to issues caused by frequent water level fluctuations. Little knowledge of successful management of environmental problems related to reservoirs riparian zone is currently available. Furthermore, there is lack of low-cost, high-benefit and easy-to-implement management technology.[Methods] Soil erosion intensities along 12 transects in the reservoir riparian zone were continuously measured between 2008 and 2016 using erosion pins. The factors mainly influencing soil erosion were assessed using hydrological data, survey data, and long-term in situ soil erosion observation data. Based on authors' sci-tech achievements, combined with literatures, various ecological restoration technologies and site-specific modes were summarized.[Results] Soil erosion modulus on riparian-zone slope was up to 94 887 t/(km2·a), 16 times on the counterpart of upland slope. Soil erosion intensity fortunately has been decreasing in recent years. The dominant driving force was wave erosion which was generated by wind and ship transportation, especially in mainstream riparian zone. The main measures for controlling soil erosion, stabilizing slope and restoring eco-system was to rebuild vegetation. Species selection for planting should be emphasized on the mechanisms attributing to adaptation of species to the extreme submergence stress, the growth recovery ability of species following release from submergence. In addition to focusing on improving the survival rate of plants and vegetation coverage, the effects of vegetation restoration on the bank stability, surface runoff regulation, sediment trapping, pollutant absorption, and plant diversity conservation should be considered. Six modes of ecological restoration at the TGR riparian zone were suggested:natural restoration, landscape vegetation ecological restoration, zonal soil consolidation and bank protection, ecological wetland, seasonal environment-friendly land utilization, and forage planting of ecological fishery.[Conclusions] The TGR riparian zone is a new geomorphological unit, and its structure and function are still unstable. Soil erosion, landscape changing and ecological degrading have been all remarkable during the study period. Long-term monitoring and studies are needed to figure out the landscape processes and the ecosystem evolution.
2019 Vol. 17 (4): 160-168 [Abstract] ( 566 ) [HTML 1KB] [PDF 1334KB] ( 734 )
中国水土保持科学
　
Notice on the Recruitment of Youth Editorial Board Members for the Journal of SSWC
Theme on Spreading Spirits of Great Scientists: LIANG Xi, the Founder of Forestry Education in China
ZHENG Fenli, CHEN Liding and LEI Tingwu in the list of Highly Cited Chinese Researchers by Elsevier
SSWC Indexed in the 2020 edition of “A Guide to the Core Journals of China”
Science of Soil and Water Conservation Accepted for Inclusion in Scopus
2020 Editor-in-Chief Meeting of Science of Soil and Water Conservation Held in Beijing, Concurrently
SSWC Selected to Be in Core Library of Source Journals of CSCD during 2019-2020
SSWC Indexed in the 2017 edition of “A Guide to the Core Journals of China”
Appreciation for peer reviewer of SSWC Editorial Board
2017 Editor-in-Chief Meeting of Science of Soil and Water Conservation Held in the Yangling of Shaan
Professor Wang Lixian, Former Editor-in-Chief of SSWC Won Norman Hudson Memory Award
Calls for Papers in English
Deputy Editor-in-Chief Cui Peng Elected as a Member of 9th National Committee of CAST
Three Members of SSWC Editorial Board Rewarded as NOSTW in 7th Session Assessment
Election of 4th Editorial Board and First Meeting of New Board Held in Beijing
Deputy Editor-in-Chief of SSWC, Academician Cui Peng elected as a member of the IRDR SC
Notice About The 5 Not-Allowed Rules While Publishing Academic Articles by 7 Organizations
SSWC Indexed in “A Guide to the Core Journals of China”
Science of Soil and Water Conservation Calls for Papers
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Five Papers of Science of Soil and Water Conservation Determined as Excellent in 5th Assessment
Congratulations to Deputy Editor-in-Chief Cui Peng Elected as Academician of Chinese Academy of Scie
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