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长江三峡地区面积约13万 km~2,人口3780万。区内自然条件复杂,矿产、生物、山水等自然资源十分丰富。由于三峡地区地势差异显著,河流众多,水量充足,大多河流落差较大且多峡谷,水能资源极为丰富。除长江外,区内流域面积大于50km~2的河流有550多条,总长度约1.6万 km,河网密度为0.12km/km~2,河流全程落差最大的约达2000m。据估算,三峡地区的水能理论蕴藏量在40000MW 以上,可开发量为35000MW,单位面积和人均占有量远远高于全国和世界平均水平。
The Three Gorges area of the Yangtze River covers an area of about 130,000 km2 with a population of 37.8 million. The natural conditions in the area are complicated. Natural resources such as minerals, living things and landscapes are very rich. Due to the significant differences in the terrain of the Three Gorges area, numerous rivers and abundant water, most of the rivers have large drops and many canyons and abundant water resources. In addition to the Yangtze River, there are more than 550 rivers with a drainage area of more than 50 km2, with a total length of about 16,000 km, a river network density of 0.12 km / km2, and a maximum drop of about 2000 m. It is estimated that the theoretical reserve of hydropower in the Three Gorges area is above 40000MW and the exploitable amount is 35000MW, with the unit area and per capita possession much higher than the national average and the world average.