Analyze the hydrologic characteristics of tao river basin, the influence on the hydrology progress imposed by physiographic factors, and variation of the relationship between rainfall and runoff.

分析研讨了洮河流域的流域特征、主要自然地理要素对水文的影响，以及降雨径流要素的变化规律。

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The results shows, the relationship between individual rainfall runoff depth and it's sediment yield is very close.

结果表明，次降雨径流深与其对应所产生的侵蚀量关系非常密切；

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Surface crust could easily take place on bare land, so its runoff-yielding time primarily depended on rainfall intensity, and their relationship might be described by a linear function.

裸地因降雨产生地表结皮，产流时间主要取决于降雨强度，两者的关系可用线性描述。

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