不透水面的增加，地表降雨-径流关系也随之发生改变。
Acompanied with the impervious surface increase, rainfall and run-off also changed.
根据实测资料对SCS法的部分参数作了修正，使小块农田的降雨径流关系适合上海的区域自然地理条件；
After analyzing data of real measure, part parameters of SCS was amended and the relationship of precipitation runoff suiting physical geography of small farmland in Shanghai was made.
本文探索利用计算机进行优选、率定符合水文特性的降雨径流经验相关关系的方法。
This paper researches the approach for optimal selecting the correlation relation between rainfall and run off, conforming to hydrology characteristic using computer.
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