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年径流特性,诸如它的地区分布、年内分配和年际变化等,是水资源调查评价、水利化区划、国土整治规划和水资源系统规划中的重要依据。本文对淮河流域的年径流特性作初步分析。一、年径流的地区分布淮河流域年径流深在流域上的变幅甚大。由于影响流域降水的水汽主要来自孟加拉湾和太平洋,因此南部、东部降水多于北部、西
Annual runoff characteristics, such as its regional distribution, annual distribution and interannual variability, are important bases for water resources investigation and evaluation, water utilization zoning, land readjustment planning and water resources system planning. This paper analyzes the annual runoff characteristics of the Huaihe River Basin. First, the annual runoff area distribution Huaihe River Basin annual runoff depth in the watershed change greatly. As the water vapor affecting precipitation in the basin mainly comes from the Bay of Bengal and the Pacific Ocean, precipitation in the south and east is more than that in the north and west