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我们阳高县地处黄土高原丘陵区、位于山西省北端,总面积1705平方公里,丘陵区和土石山区占到66.5%。全县主要有白登河、吾其河、黄水河、黑水河和桑干河五大河流。水土流失面积1250.5平方公里,占到总面积的73.3%,年侵蚀总量399万吨,是近年来首批列入永定河上游重点治理县之一。严重的水土流失不仅破坏了生态环境,阻碍了农业生产的发展,而且使县境内的大量泥沙通过千沟万壑源源不断地输入官厅水库,直接威胁着首都的安全。
Yanggao County is located in the hilly area of the Loess Plateau, located in the northern tip of Shanxi Province, with a total area of 1705 square kilometers, hilly areas and rock and mountainous areas accounted for 66.5%. The county hasBerthan River, Wu River, Yellow River, Black River and Sanggan River five rivers. Soil and water loss area of 1250.5 square kilometers, accounting for 73.3% of the total area, the annual erosion of 3.99 million tons, is one of the first among the key counties in the upper reaches of the Yongding River in recent years. Serious soil erosion has not only destroyed the ecological environment and hindered the development of agricultural production, but also caused a great deal of sediment in the county to enter the Guanting Reservoir through endless valleys, threatening the capital’s safety.