Mechanism simulation on soil and water conservation of slope farmland side ditch
CAI Xiongfei1,2,3, LEI Li1, LIANG Ping1, FU Bin2,3, WANG Ji1, XU Pei2,3, WANG Yukuan2,3
1. School of Geographic and Environmental Sciences, Guizhou Normal University, 550001, Guiyang, China;
2. Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, 610041, Chengdu, China;
3. Wanzhou Station of Reservoir Eco-environment Monitoring, 404100, Chongqing, China
Abstract：[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.
蔡雄飞, 雷丽, 梁萍, 傅斌, 王济, 徐佩, 王玉宽. 坡耕地边沟水土保持机制模拟研究[J]. 中国水土保持科学, 2019, 17(4): 41-48.
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. SSWC, 2019, 17(4): 41-48.
史立人. 长江流域的坡耕地治理[J]. 人民长江, 1999, 30(7):25. SHI Liren. Hillside field improvement of Yangtze valley[J]. Yangtze River, 1999, 30(7):25.
[2]
田光进, 张增祥, 赵晓丽,等. 中国耕地土壤侵蚀空间分布特征及生态背景[J]. 生态学报, 2002, 22(1):10. TIAN Guangjin, ZHANG Zengxiang, ZHAO Xiaoli,et al. The soil erosion distribution characteristics and ecological background of Chinese cultivated land[J]. Acta Ecologica Sinica, 2002, 22(1):10.
[3]
胡玉法. 长江流域坡耕地治理探讨[J]. 人民长江, 2009, 40(8):72. HU Yufa. Discussion on regulation of cultivated slope land in Yangtze River Basin[J]. Yangtze River, 2009, 40(8):72.
[4]
张信宝, 贺秀斌. 长江上游坡耕地整治成效分析[J]. 人民长江, 2010, 41(13):21. ZHANG Xinbao, HE Xiubin. Achievement of slope farmland regulation in upper Yangtze River[J]. Yangtze River, 2010, 41(13):21.
[5]
廖绵濬, 王丁番. 改良山边沟的研究[R]. 台湾糖业试验所试验研报告, 1961-1965. LIAO Mianjun, WANG Dingfan. Research on improving mountainside ditch[R]. Taiwan Sugar Industry Laboratory Research Report, 1961-1965.
[6]
LIAO Mianjun. Improvement of hillside ditches in Taiwan[J]. Journal of Soil & Water Conservation, 1979.
[7]
LIAO Mianjun. Soil conservation measures for steep orchards in Taiwan[C]//South-East Asian Regional Symposium on Problems of Soil Erosion and Sedimentation, Held at Asian Institute of Technology, January 27-29, 1981/Edited by T. Tingsanchali, H. Eggers. 1981.
[8]
LIAO Mianjun, Effects of bench terrace and improved Hillside ditch international Hill symposium[C]//International hill land symposium, held at West Virginia, U. S. A. 1987.
[9]
LIAO Mianjun, HU S C, LU H S, et al. Evolution of soil conservation practices on steep lands in Taiwan[C]//Conservation farming on steep lands papers originally presented at a workshop held in San Juan, Puerto Rico, March 22-27, 1987:233.
[10]
刘德海. 半干旱山区水平沟集流整地造林技术研究[J]. 现代农业科技, 2011(8):182. LIU Dehai. Study on afforestation techniques of horizontal ditch collecting and land preparation in semi-arid mountain area[J]. Modern Agricultural Sciences and Technology, 2011(8):182.
[11]
赵淑琴. 兰州市城市园林坡面绿地雨水水平沟利用技术试验研究[J]. 甘肃农业, 2017(1):41. ZHAO Shuqin. Experimental study on utilization of horizontal gully water level ditch in urban garden slope in Lanzhou city[J]. Gansu Agriculture, 2017(1):41.
[12]
沈艳, 马红彬, 谢应忠,等. 宁夏典型草原土壤理化性状对不同管理方式的响应[J]. 水土保持学报, 2012, 26(5):84. SHEN Yan, MA Hongbin, XIE Yingzhong,et al. Response todifferent management modes of soil physical and chemical prosperities in typical steppe, Ningxia[J]. Journal of Soil and Water Conservation, 2012, 26(5):84.
[13]
宋月君, 杨洁, 汪邦稳. 赣南水土保持生态建设土壤改良成效分析[J]. 水资源与水工程学报, 2013, 24(1):104. SONG Yuejun, YANG Jie, WANG Bangwen. Analysis on benefit of soil improvement in soil and water conservation andecological construction in south of Jiangxi Province[J]. Journal of Water Resources and Water Engineering, 2013, 24(1):104.
[14]
李晓原, 张文太, 李建贵,等. 伊犁河谷5种土壤管理措施减流减沙效果分析[J]. 中国水土保持科学, 2017, 15(3):51. LI Xiaoyuan, ZHANG Wentai, LI Jiangui, et al. Effects of five soil management measures on runoff and sediment reduction in Ili Valley of Xinjiang[J]. Science of Soil and Water Conservation, 2017, 15(3):51.
[15]
陶禹, 向风雅, 任文海,等. 花岗岩红壤坡面工程措施初期的水土保持效果[J]. 水土保持学报, 2015, 29(5):34. TAO Yu, XIANG Fengya, REN Wenhai, et al. Effect of engineering measures on soil and water conservation on Granite Red Soil Slope[J]. Journal of Soil and Water Conservation, 2015, 29(5):34.
[16]
韩丙芳, 马红彬, 沈艳,等. 不同生态修复措施对黄土丘陵区典型草原土壤水分时空变异的影响[J]. 水土保持学报, 2015, 29(1):214. HAN Bingfang, MA Hongbin, SHEN Yan, et al. Influence on spatial and temporal variation of soil moisture of type steppe under different ecological restoration measures in hilly area of the Loess Plateau[J]. Journal of Soil and Water Conservation, 2015, 29(1):214.
[17]
马红彬,沈艳,谢应忠,等. 三种生态修复措施对宁南长芒草典型草原植被特征影响研究[EB/OL]. 北京:中国科技论文在线[2012-09-26].http://www.paper.edu.cn/releasepaper/content/201209-300. MA Hongbin, SHEN Yan, XIE Yinzhong, et al. Effects of three ecological restoration measures on vegetation characteristics of typical steppe in Ningnan[EB/OL]. Sciencepaper online[2012-09-26]. http://www.paper.edu.cn/releasepaper/content/201209-300.
[18]
高扬, 朱波, 周培,等. 紫色土坡地氮素和磷素非点源输出的人工模拟研究[J]. 农业环境科学学报, 2008, 27(4):1371. GAO Yang, ZHU Bo, ZHOU Pei, et al. Non-point source export of nitrogen and phosphorus from slope crop of purple soil with simulated rainfall method[J]. Journal of Agro-Environment Science2008, 27(4):1371.
[19]
徐波, 朱雪梅, 刘倩,等. 川中丘陵区不同土地利用方式下土壤养分特征研究:以中国科学院盐亭紫色土农业生态试验站小流域为例[J]. 西南农业学报, 2011, 24(2):663. XU Bo, ZHU Xuemei, LIU Qian, et al. Study on nutrient characteristics of soils under different land utilization types in hilly area of central Sichuan Basin[J]. Southwest China Journal of Agricultural Sciences, 2011, 24(2):663.
[20]
何丙辉, 缪驰远, 吴咏,等. 遂宁组紫色土坡耕地土壤侵蚀规律研究[J]. 水土保持学报, 2004, 18(3):9. HE Binghui, LIAO Chiyuan, WU Yong,et al. Study onsoil erosion regularity of sloping farmland in Suining group purple soil[J]. Journal of Soil and Water Conservation, 2004, 18(3):9.
[21]
谢云, 林小鹃, 刘英娜,等. 槽式摆喷头下喷式人工模拟降雨机的雨强及其空间分布率定[J]. 水土保持通报, 2008, 28(4):1. XIE Yun, LIN Xiaojuan, LIU Yingna,et al. Calibration of simulated rainfall intensity and its spatial distribution for trough rainfall simulator[J]. Bulletin of Soil and Water Conservation, 2008, 28(4):1.
[22]
张兴昌. 黄土丘陵沟壑区水平沟耕作效益研究[J]. 水土保持研究, 1998,1(4):52. ZHANG Xingchang. The benefit oflevel trench tillage in hilly-gully Loess Plateau[J]. Research of Soil and Water Conservation, 1998,1(4):52.
[23]
林和平. 水平沟耕作在不同坡度上的水土保持效应[J]. 水土保持学报, 1993, 7(2):63. LIN Heping. The effects of the level ditch tillage on different slopes on soil and water conservation[J]. Journal of Soil and Water Conservation, 1993, 7(2):63.
[24]
刘俊, 彭珂珊. 山地水平沟在黄土高原水土流失区的作用与地位[J]. 水资源与水工程学报, 1995(3):89. LIU Jun, PENG Keshan. Therole and status of Mountain Horizontal Ditch in soil and water loss area of the Loess Plateau[J]. Water Resources & Water Engineering, 1995(3):89.
[25]
张兴昌, 卢宗凡. 坡地水平沟耕作的土壤水分动态及增产机理研究[J]. 水土保持学报, 1993,7(3):58. ZHANG Xingchang, LU Zongfan. Study on the dynamic change of soil water and yield-increasing mechanism about Level Trench Tillage in slope land[J]. Journal of Soil and Water Conservation, 1993,7(3):58.
2019, Vol. 17 
