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四川省根据丘陵区暴雨集中，植被稀疏，坡耕地多，产流速度快，坡面水系紊乱，破坏力大的特点，总结推广的坡面水系工程，可对坡面径流实施有效的拦、蓄、引、灌、排，已成为控制水土流失，充分利用坡面径流，改善农业生产条件的重要措施。介绍了坡面水系工程中排灌渠、蓄水池、沉沙幽、山平塘的布设、设计与施工技术等。
Based on the characteristics of heavy rainfall in hilly area, sparse vegetation, large amount of arable land, fast runoff, disorder of water system on the slope and great destructive power, Sichuan Province can summarize and popularize the slope surface water system project and can effectively implement the runoff on the slope surface. , Irrigation, drainage and drainage have become important measures to control soil and water loss, make full use of slope runoff and improve agricultural production conditions. This paper introduces the layout, design and construction techniques of drainage and irrigation channels, reservoirs, quiet sand and mountain Pingtang in slope water system engineering.