小流域综合治理对减轻洪涝灾害的调查分析

Surveys and Analysis of Effects of Small Watershed Controlling Upon Lessening Flood and Water Logging Disasters

山东省中南地区1991年7月23日至24日降了百年不遇的特大暴雨,造成该地区严重的洪涝灾害。在洪水过后,作者即赴平邑、蒙阳、沂南三县选择有代表性的小流域进行了调查对比分析。结果表明:凡是综合治理较好的小流域,各项水保措施发挥了显著的作用,蓄水保土和防洪效益明显,大大地减轻了洪水危害和洪灾造成的损失。同时作者综合调查研究资料,提出了进一步搞好水土保持工作的几点建议。

Torrential rain with one hundred years' frequency occured from July 23-24, 1991 in Zhongnan Prefecture of Shandong Province, causing a serious flood and water logging disasters in this region. After the flood, the authors rushed to go to such three counties as Pingyi, Menying and Yinan to select, the typical small watersheds to carry out surveys and comparative analysis. The results indicated that in those better comprehensively-controlled small watersheds, every soil and water conservation practice has brought about, the apparent benefit, effects upon water storage and soil conservation as well as flood prevention, thus reducing flood threats and damages caused by flood disasters. And at the same time, the authors studied information from comprehensive surveys and presented some suggestions for doing a better work on soil and water conservation.