1. College of Resources and Environment, Huazhong Agricultural University, 430070, Wuhan, China; 2. Key Laboratory of Arable Land Conservation in Middle and Lower Reaches of Yangtze River, Ministry of Agriculture, Huazhong Agricultural University, 430070, Wuhan, China; 3. State Environmental Protection Key Laboratory of Soil Health and Green Remediation, 430070, Wuhan, China; 4. Hubei Center for Soil and Water Conservation Monitoring, 430071, Wuhan, China
摘要中国土壤流失方程(Chinese soil loss equation,CSLE)是我国用于定量评价和预测区域土壤侵蚀的重要模型。水土保持耕作措施因子(T)是该模型中的7个关键因子之一,能反映水土保持耕作措施对土壤侵蚀的削减作用,其准确估算对基于CSLE模型的区域土壤侵蚀评价及动态对比分析至关重要。通过文献资料调研,总结目前获取T因子的6种方法,并对比各种方法的优缺点和适用条件。研究表明:水利普查结果查询法和区域水土流失动态监测查询法,获取便捷且应用广泛,但精度有待验证;土地利用类型划分公式法计算简便且适用于流域等大尺度,但受土地利用/覆盖类型解译的限制;径流小区公式法精度较高,适用于小区等小尺度;坡度分级法和水土保持耕作措施赋值法实际应用性强,可用于小流域、区域等尺度,但需考虑空间异质性。
Abstract:[Background] The Chinese soil loss equation (CSLE) is an important tool for the quantitative evaluation and prediction of regional soil erosion in China. In this model, the soil and water conservation tillage measure factor (T) is one of the seven important factors, which reflects the potential impact of soil and water conservation tillage measures on soil erosion. It is essential to assess the T factor value in an accurate way for the regional soil erosion evaluation and dynamic comparative analysis using the CSLE model.[Methods] Numerous literature retrievals were carried out with "Chinese soil loss equation (CSLE)"and"tillage factors" as keywords, we selected the literatures for analysis and integration. Based on these references, we summarized six methods to obtain the T factor value, and compared the advantages,disadvantages and the applicable conditions of each method.[Results] 1)Inquiry Method of Water Conservancy Census Results is extensively used due to its convenience, while the T factor is revised combing with the data of investigation units and runoff plots in the study areas. 2)Dynamic Monitoring and Inquiry Method of Regional Soil and Water Loss is simple and easy to proceed,however it is difficult to determine the T value of other crops as it is only for 10 main crops in China. 3)Land Use Classification Formula Method is easy to be used, and can be applied at small watershed, watershed and regional scale, but it requires to integrate remote sensing interpretation and query method to generate the specific factor values of various land use types and tillage measures, and it is a cumbersome, high-cost and time-consuming task while used at large scale. 4)Runoff Plot Formula Method is the most fundament alway to obtain relatively accurate T factor method; however, it is difficult to compare the effects of different tillage measures on soil erosion, and sediment data in the runoff plots of control and soil and water conservation measures need regular management and long-term monitoring.Runoff, soil erosion and sediment yield vary significantly in different scale basins, thusit is difficult to compare the effects of different tillage practices on soil erosion. 5)Slope Classification Method is of strong operability, and it does not rely on standard runoff plot, but accurate extraction of slope is needed. 6)Value-Assigned Method of Tillage Measures for Soil and Water Conservation is simple and convenient;while the accuracy and applicability in different research areas are required to be investigated.[Conculsions] These findings are of great significance to the selection of the calculating methods of soil and water conservation tillage measures.Nevertheless, in order to ensure the accuracy of T factor values obtained in the study area, the dynamic monitoring of soil and water loss in runoff plots under different tillage measures should be carried out for a long time in combination with local rotation system. In the large-scale study area, it is necessary to assign the T factor in combination with the national rotation system regionalization, and to calculate the T factor of other tillage measures in the study area via spatial information technology and field investigation. Besides, it is necessary to fully consider the specialty of the study area and the application scope of the selected method. The selection of control plot for tillage measures varies when different researchers calculate T factor value by runoff plot formula method, which leads to the difference of T factor value actually obtained, thus, it needs further exploration.
杨艳生, 史德明, 吕喜玺. 长江三峡区的坡面土壤流失量和入江泥沙量研究[J]. 水土保持学报, 1991,5(3):22. YANG Yansheng, SHI Deming, LÜ Xixi.Study on soil loss and sediment inflow from slope in Three Gorges area of Yangtze River[J]. Journal of Water and Soil Conservation, 1991,5(3):22.
[2]
陈法扬, 王志明. 通用土壤流失方程在小良水土保持试验站的应用[J]. 水土保持通报, 1992,12(1):23. CHEN Fayang, WANG Zhiming.Application of general soil loss equation in Xiaoliang Soil and Water Conservation Experimental Station[J]. Bulletin of Soil and Water Conservation, 1992,12(1):23.
[3]
黄炎和, 卢程隆, 付勤, 等. 闽东南土壤流失预报研究[J]. 水土保持学报, 1993,7(4):13. HUANG Yanhe, LU Chenglong, FU Qin, et al.Prediction of soil loss in Southeast Fujian province[J]. Journal of Water and Soil Conservation, 1993,7(4):13.
[4]
林素兰, 黄毅, 聂振刚, 等. 辽北低山丘陵区坡耕地土壤流失方程的建立[J]. 土壤通报, 1997,28(6):12. LIN Sulan, Huang Yi, NIE Zhengang, et al. Establishment of soil loss equation of sloping farmland in low mountain and hilly area of northern Liaoning province[J]. Chinese Journal of Soil Science, 1997,28(6):12.
[5]
吴发启, 赵晓光, 刘秉正. 黄土高原南部坡耕地土壤侵蚀预报[J]. 土壤侵蚀与水土保持学报, 1998,4(2):3. WU Faqi, ZHAO Xiaoguang, LIU Bingzheng. Soilerosion prediction on slope cultivated lands in south part of Loess Plateau[J]. Soil and Water Loss and Its Control in Mine Areas, 1998,4(2):3.
[6]
杨武德, 王兆骞, 眭国平, 等. 红壤坡地不同利用方式土壤侵蚀模型研究[J]. 土壤侵蚀与水土保持学报, 1999,22(1):3. YANG Wude, WANG Zhaoqian, SUI Guoping, et al. Study on soil erosion model of red soil slope land under different utilization modes[J]. Journal of soil erosion and soil and water conservation, 1999,22(1):3.
[7]
杨子生. 滇东北山区坡耕地土壤流失方程研究[J]. 水土保持通报, 1999,19(1):3. YANG Zisheng. Study on soil loss equation of sloping farmland in Northeast Yunnan[J]. Bulletin of Soil and Water Conservation, 1999,19(1):3.
[8]
杨子生. 云南省金沙江流域土壤流失方程研究[J]. 山地学报, 2002,20(S1):1. YANG Zisheng. Study on soil loss equation of Jinsha River Basin in Yunnan province[J]. Mountain Research, 2002,20(S1):1.
[9]
LIU B Y, ZHANG K L, XIE Y. An empirical soil loss equation[A]. Proceedings 12th International Soil Conservation Organization Conference, Vol. Bioprocess of Soil Erosion and Its Environment Effect[A]. Beijing:Tsinghua University Press, 2002:21.
[10]
李智广, 刘宪春, 刘建祥, 等. 第一次全国水利普查水土保持普查方案[J]. 水土保持通报, 2010, 30(3):87. LI Zhiguang, LIU Xianchun, LIU Jianxiang, et al. Plan of soil and water conservation survey in national census for water resources[J]. Bulletin of Soil and Water Conservation, 2010, 30(3):87.
[11]
水利部水土保持监测中心. 第四次全国土壤侵蚀普查技术细则[R]. 北京, 2009:3. Water and Soil Conservation Monitoring Center of the Ministry of Water Resources. Technical details of the fourth national census of soil erosion[R]. Beijing, 2009:3.
[12]
程琳, 杨勤科, 谢红霞, 等. 基于GIS和CSLE的陕西省土壤侵蚀定量评价方法研究[J]. 水土保持学报, 2009, 23(5):61. CHENG Li, YANG Qinke, XIE Hongxia, et al. GIS and CSLE based quantitative assessment of soil erosion in Shaanxi, China[J]. Journal of Water and Soil Conservation, 2009, 23(5):61.
[13]
张必辉.基于CSLE模型的三峡库区(湖北段)土壤侵蚀变化及预测研究[D]. 武汉:华中农业大学, 2019:5. ZAHNG Bihui. Study on change and prediction of soil erosion in Three Gorges Reservoir Area (Hubei section) based on CSLE model[D].Wuhan:Huazhong Agricultural University, 2019:5.
[14]
刘宝元, 郭索彦, 李智广, 等. 中国水力侵蚀抽样调查[J]. 中国水土保持, 2013(10):26. LIU Baoyuan, GUO Suoyan, LI Zhiguang, et al. Sampling survey of water erosion in China[J]. Soil and Water Conservation in China, 2013(10):26.
[15]
郭乾坤, 刘宝元, 朱少波, 等. 中国主要水土保持耕作措施因子[J]. 中国水土保持, 2013(10):22. GUO Qiankun, LIU Baoyuan, ZHU Shaobo, et al. Main factors of soil and water conservation tillage measures in China[J]. Soil and Water Conservation in China, 2013(10):22.
[16]
黄凯旋, 刘扬, 董晓健, 等. 基于土地利用变化的三峡库区(湖北段)土壤侵蚀消长研究[J]. 水土保持研究, 2020, 27(1):1. HUANG Kaixuan, LIU Yang, DONG Xiaojian, et al.Study on the growth and decline of soil erosion in the Three Gorges Reservoir Area (Hubei section) based on land use change[J]. Soil and Water Conservation Research, 2020, 27(1):1.
[17]
陈浩. 黄土高原退耕还林前后流域土壤侵蚀时空变化及驱动因素研究[D]. 陕西杨凌:西北农林科技大学, 2019:7. CHEN Hao. Temporal and spatial variation of soil erosion and its driving factors before and after returning farmland to forest on the Loess Plateau[D].Yangling, Shaanxi:Northwest Agricultural and Forestry University, 2019:7.
[18]
祝赢, 章文波, 刘素红, 等. 第一次全国水利普查侵蚀模数的批量计算方法——基于CSLE和GIS的土壤水蚀模数计算器设计与应用[J]. 水土保持通报, 2012, 32(5):291. ZHU Ying, ZHANG Wenbo, LIU Suhong, et al. A batch computation method of soil erosion modulus in the First National Water Conservancy Survey:Design and application of water erosion modulus calculator based on CSLE and GIS[J]. Bulletin of Soil and Water Conservation, 2012, 32(5):291.
[19]
邹丛荣, 齐斐, 张庆红, 等. CSLE模型应用中不同抽样密度和推算方法的比较[J]. 中国水土保持科学, 2016, 14(3):130. ZOU Congrong, QI Fei, ZHANG Qinghong, et al. Comparison of different sampling density and calculation methods in CSLE model application[J]. Science of Soil and Water Conservation, 2016, 14(3):130.
[20]
卢刚. 基于CSLE模型的天山北坡西白杨沟流域土壤侵蚀定量评价[J]. 水土保持通报, 2019, 39(2):124. LU Gang. Quantitative evaluation of soil erosion in xibaiyanggou watershed on the northern slope of Tianshan Mountains based on CSLE model[J]. Bulletin of Soil and Water Conservation, 2019, 39(2):124.
[21]
邱娅柳, 耿韧, 洪静雨, 等. 基于GIS和CSLE的高淳慢城土壤侵蚀评估[J]. 江苏水利, 2018(9):19. QIU Yaliu,GENGRen, HONGJingyu, et al. Evaluation of soil erosion in Gaochun city based on GIS and CSLE[J]. Jiangsu Water Resources, 2018(9):19.
[22]
周晓莹,贾立志,桑卫国. 基于文献统计的CSLE模型中耕作措施因子的确定[J]. 水土保持研究, 2020, 27(6):116. ZHOU Xiaoying, JIA Lizhi, SANG Weiguo. Determination of tillage factors in CSLE model based on literature statistics[J]. Research of Soil and Water Conservation, 2020, 27(6):116.
[23]
蒋德麒. 我国的水土保持耕作措施[J]. 中国水土保持, 1984(2):2. JIANG Deqi. Tillage measures for soil and water conservation in China[J]. Soil And Water Conservation In China, 1984(2):2.
[24]
刘宝元, 刘瑛娜, 张科利, 等. 中国水土保持措施分类[J]. 水土保持学报, 2013, 27(2):80. LIU Baoyuan, LIU Yingna, ZHANG Keli, et al. Classification for soil conservation practices in China[J]. Journal of Water and Soil Conservation, 2013, 27(2):80.
[25]
中华人民共和国国家质量监督检验检疫总局, 中国国家标准化管理委员会. GB/T 16453-2008水土保持综合治理技术规范[S]. 北京:中国标准出版社, 2008:4. General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, National Standardization Management Committee of China. GB/T 16453-2008 technical specification for comprehensive treatment of soil and water conservation[S]. Beijing:China Standards Press, 2008:4.
[26]
李智广, 符素华, 刘宝元. 我国水力侵蚀抽样调查方法[J]. 中国水土保持科学, 2012, 10(1):77. LI Zhiguang, FU Suhua, LIU Baoyuan. Sampling program of water erosion inventory in the first national water resource survey[J]. Science of Soil and Water Conservation, 2012, 10(1):77.
[27]
郭索彦. 土壤侵蚀调查与评价[M]. 北京:中国水利水电出版社, 2014:100. GUO Suoyan. Investigation and evaluation of soil erosion[M].Beijing:China Water Power Press, 2014:100.
[28]
王宏广. 中国耕作制度70年[M]. 北京:农业出版社, 2005:237. WANG Hongguang. 70 years tillage system in China[M].Beijing:Agricultural Press, 2005:237.
[29]
国务院第一次全国水利普查领导小组办公室. 第一次全国水利普查培训教材之六:水土保持情况普查[M]. 北京:中国水利水电出版社, 2011:61. Office of the Leading Group of the First National Water Conservation Census under the State Council.Sixth oftraining materials for the first national water conservation census:Census of water and soil conservation[M]. Beijing:China Water Resources and Hydropower Press, 2011:61.
[30]
齐斐, 苏新宇, 黎家作, 等. 沂蒙山区不同抽样密度对土壤侵蚀因子估算精度的影响[J]. 水土保持通报, 2019, 39(2):179. QI Fei,SU Xinyu, LI Jiazuo, et al. Effect of different sampling density on estimation accuracy of soil erosion factors in Yimeng Mountain area[J]. Bulletin of Soil and Water Conservation, 2019, 39(2):179.
[31]
李子轩, 赵辉, 邹海天, 等. 基于CSLE模型和抽样单元法的县域土壤侵蚀估算方法对比[J]. 农业工程学报, 2019, 35(14):141. LI Zixuan, ZHAO Hui, ZOU Haitian, et al. Comparison of estimation methods of county soil erosion based on CSLE model and sampling unit method[J]. Transactions of the CSAE, 2019, 35(14):141.
[32]
DUAN X W, BAI Z W, LI R, et al. Investigation method for regional soil erosion based on the Chinese Soil Loss Equation and high-resolution spatial data:Case study on the mountainous Yunnan province, China[J]. Catena, 2020(184):104237.
[33]
陈锐银, 严冬春, 文安邦, 等. 基于GIS/CSLE的四川省水土流失重点防治区土壤侵蚀研究[J]. 水土保持学报, 2020, 34(1):17. CHEN Ruiyin, YAN Dongchun, WEN Anbang, et al. Research on soil erosion in key preventive and control areas of soil and water loss in Sichuan province based on GIS/CSLE[J]. Journal of Water and Soil Conservation, 2020, 34(1):17.
[34]
石秀梅. 福建省重点治理区水土流失动态监测及治理效益研究[D]. 武汉:武汉大学, 2019:28. Shi Xiumei. Dynamic monitoring of soil and water loss in key control areas of Fujian province and study on control benefits[D].Wuhan:Wuhan University, 2019:28.
[35]
刘桂成. 基于CSLE模型的江西省土壤侵蚀空间分布评价[D]. 南昌:江西师范大学, 2020:35. LIU Guicheng. Evaluation of spatial distribution of soil erosion in Jiangxi province based on CSLE model[D]. Nanchang:Jiangxi Normal University, 2020:35.
[36]
杨韶洋. 基于CSLE模型的沂蒙山国家级重点治理区土壤侵蚀格局分析[D]. 济南:山东农业大学, 2014:37. YANG Shaoyang. Analysis of soil erosion pattern in Yimeng Mountain National key control area based on CSLE model[D]. Jinan:Shandong Agricultural University, 2014:37.
[37]
陈美淇, 魏欣, 张科利, 等.基于CSLE模型的贵州省水土流失规律分析[J]. 水土保持学报, 2017, 31(3):16. CHEN Meiqi, WEI Xin, ZHANG Keli, et al. Analysis on rule of soil and water loss in Guizhou province based on CSLE model[J]. Journal of Water and Soil Conservation, 2017, 31(3):16.
[38]
ZHANG H D, ZHANG R H, QI F, et al. The CSLE model based soil erosion prediction:Comparisons of sampling density and extrapolation method at the county level[J]. Catena, 2018(165):465.
[39]
符素华, 刘宝元, 周贵云, 等. 坡长坡度因子计算工具[J]. 中国水土保持科学, 2015, 13(5):105. FU Suhua, LIU Baoyuan, ZHOU Guiyun, et al. Slope length and gradient factor calculation tool[J]. Science of Soil and Water Conservation, 2015, 13(5):105.
[40]
MCCOOL D K, BROWN L C, FOSTER G R, et al. 1987. Revised slope steepness factor for the Universal Soil Loss Equation[J]. Transactions of the ASAE, 1987, 30(5):1387.
[41]
LIU B Y, Nearing M A, Risse L M. Slope gradient effects on soil loss for steep slopes[J]. Transactions of the ASAE, 1994, 37(6):1835.
[42]
范建荣, 王念忠, 陈光, 等. 东北地区水土保持措施因子研究[J]. 中国水土保持科学, 2011, 9(3):75. FAN Jianrong, WANG Nianzhong, CHEN Guang, et al. Research on factors of soil and water conservation measures in northeast China[J]. Science of Soil and Water Conservation, 2011, 9(3):75.
[43]
郭继成, 顾再柯, 苑爽, 等. 西南喀斯特地区水土保持措施因子值计算与评价[J]. 中国水土保持, 2014(10):50. GUO Jicheng, GU Zaike, YUAN Shuang, et al. Calculation and evaluation of factor value of soil and water conservation measures in southwest karst region[J]. Soil and Water Conservation in China, 2014(10):50.
[44]
LUFAFA A, TENYWA M M, ISABIRYE M, et al. Prediction of soil erosion in a Lake Vietoria basin catchment using GIS based universal soil loss model[J]. Agriculture Systems, 2003, 76(3):883.
[45]
刘宝元. 西北黄土高原区土壤侵蚀预报模型开发项目研究成果报告[R]. 北京:水利部水土保持监测中心, 2006:15. LIU Baoyuan. Report on research achievements of development project of soil erosion forecast model in northwest loess plateau area[R]. Beijing:Water and Soil Conservation Monitoring Center of the Ministry of Water Resources, 2006:15.
[46]
高峰. 基于GIS和CSLE的区域土壤侵蚀定量评价研究[D]. 南宁:广西师范学院, 2014:39. GAO Feng. Quantitative evaluation of regional soil erosion based on GIS and CSLE[D].Nanning:Guangxi Normal University, 2014:39.
[47]
何维灿, 赵尚民, 王睿博, 等. 基于GIS和CSLE的山西省土壤侵蚀风险研究[J]. 水土保持研究, 2016, 23(3):58. HE Weican, ZHAO Shangmin, WANG Ruibo, et al. Research onsoil erosion risk based on GIS and CSLE in Shanxi province[J]. Research of Soil and Water Conservation, 2016, 23(3):58.
[48]
黄瑶. 基于CSLE模型土壤侵蚀及水土保持情景分析研究[D]. 福州:福建师范大学, 2017:29. HUANG Yao. Scenario analysis of soil erosion and soil and water conservation based on CSLE model[D].Fuzhou:Fujian Normal University, 2017:29.
[49]
孙禹, 哈斯额尔敦, 杜会石. 基于GIS的东北黑土区土壤侵蚀模数计算[J]. 中国水土保持科学, 2015, 13(1):1. SUN Yu, HASIEERDUN, DU Huishi. Calculation of soil erosion modulus in northeast black soil region based on GIS[J]. Science of Soil and Water Conservation, 2015, 13(1):1.
[50]
樊彦国, 韩志聪, 李倩倩, 等. 基于GIS和CSLE的土壤侵蚀定量评价——以山东省临沂地区为例[J].江苏农业科学, 2016, 44(11):439. FAN Yanguo, HAN Zhicong, LI Qianqian, et al. Quantitative evaluation of soil erosion based on GIS and CSLE:A case study of Linyi area, Shandong province[J]. Jiangsu Agricultural Sciences, 2016, 44(11):439.
[51]
马亚亚, 王杰, 张超, 等. 基于CSLE模型的陕北纸坊沟流域土壤侵蚀评价[J]. 水土保持通报, 2018, 38(6):95. MA Yaya, WANG Jie, ZHANG Chao, et al. Evaluationof soil erosion based on CSLE model in Zhifanggou Watershed of northern Shaanxi province[J]. Bulletin of Soil and Water Conservation, 2018, 38(6):95.
[52]
谢红霞. 延河流域土壤侵蚀时空变化及水土保持环境效应评价研究[D]. 西安:陕西师范大学, 2008:57. XIE Hongxia. Study on spatiotemporal changes of soil erosion and environmental effects of soil and water conservation in Yanhe River Basin[D].Xi'an:Shaanxi Normal University, 2008:57.
[53]
岳美. 基于RS/GIS的黑龙江省鹤岗市东方红小流域土壤侵蚀评价[D]. 哈尔滨:东北师范大学, 2013:27. YUE Mei. Soil erosion evaluation of Dongfanghong small watershed in Hegang City, Heilongjiang Province Based on RS/GIS[D].Harbin:Northeast Normal University, 2013:27.
[54]
吴思颖, 汪小钦, 曾舒娇, 等. 基于CSLE的安溪县土壤侵蚀估算与分析[J]. 中国水土保持科学, 2019, 17(4):112. WU Siying, WANG Xiaoqin, ZHENG Sujiao. etal. Estimation and analysis of soil erosion in Anxi county based on CSLE.[J]. Science of Soil and Water Conservation, 2019, 17(4):112.
[55]
张倩. 梯田对土壤侵蚀定量评价的影响研究[D]. 西安:西北大学, 2016:42. ZHANG Qian. Study on the influence of terraces on quantitative evaluation of soil erosion[D].Xi'an:Northwestern University, 2016:42.