我国西部地区幅员辽阔 ,人口众多 ,包括 10个省、自治区、直辖市 ,面积 5 45万平方公里 ,占全国陆地面积的 5 7% ,人口近 3亿 ,约占全国人口的四分之一。这里自然资源丰富 ,盛产煤、铁、石油、天然气等各种矿产品 ,其中西南地区是我国森林和水利资源最丰富的地区之一。但自改革 The western region of our country has a vast territory and a large population. It includes 10 provinces, autonomous regions and municipalities directly under the Central Government, covering an area of ​​5450,000 square kilometers, accounting for 57% of the total land area of ​​the country and a population of nearly 300 million, accounting for about one quarter of the national population. Here rich in natural resources, rich in coal, iron, oil, natural gas and other minerals, of which the southwest region is China’s forest and water resources one of the most abundant areas. But since the reform