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珠江是我国七大河流之一,流域面积的国内部分为444,300平方公里,占全国土地面积的4.6％。全流域多为山地和丘陵,占流域面积的94.5％;平原面积小而分散,占流域面积的5.5％。大部分属亚热带季风气候,气温高。珠江流域(国内部分):年降水量约为6,530亿立米,水资源较丰富,年径流量为3,340亿立米,人均年水量约为4,770立米,亩均年水量约为4,650立米,均超过全国平均水平。在全国七大河流中,水资源量居第二位,仅次于长江;而年径流模数,为国内各大江河之首。本流域由于降水在地区分布、年际变化和年内分配上的不均匀,因此,有些地
The Pearl River is one of the seven major rivers in our country. The domestic area of the basin is 444,300 square kilometers, accounting for 4.6% of China’s total land area. The whole basin is mostly mountainous and hilly, accounting for 94.5% of the basin area; the plain area is small and scattered, accounting for 5.5% of the basin area. Most of the subtropical monsoon climate, high temperatures. The Pearl River Basin (domestic part): annual precipitation is about 653 billion cubic meters, rich water resources, annual runoff of 3,340 billion cubic meters, per capita annual water volume of about 4,770 cubic meters, the average annual amount of mu is about 4,650 cubic meters, more than the national average Level. Among the seven major rivers in the country, the amount of water resources ranks second only to the Yangtze River; and the annual runoff modulus is the highest among all major rivers in China. Due to the precipitation distribution in the region, the interannual variation and the non-uniform distribution during the year, some areas