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川掌沟流域面积 14 7km2 ,年土壤侵蚀模数 1 9万t/km2 ,1986年以来 ,在过去修建淤地坝的基础上 ,兴建的 2 7座治沟骨干工程 ,促进了流域综合治理和群众脱贫致富 ,在 15 0年一遇暴雨洪灾和 60年一遇的旱灾中发挥了其他水保措施无法替代的防洪与减灾作用。
The area of Chuanzhangou drainage basin is 14.7km2 and the annual soil erosion modulus is 190000 t / km2. Since 1986, on the basis of the construction of check dams in the past, 27 backbone ditches have been built to promote the comprehensive management of watershed and People get out of their hands and get rich. They played an irreplaceable flood prevention and mitigation role in other floods and 60-year drought in 15 years.