论文部分内容阅读
甘肃是全国土壤侵蚀最严重的省份之一,土壤侵蚀面积达35.09万平方公里,占全省总土地面积的78%。其中水蚀区有10个地(州、市),69个县(市、区),土地面积18.4万平方公里,水土流失面积12.69万平方公里。据1990年底统计,水蚀区人口共1787万人,占全省总人口的82%。严重的水土流失和频繁的旱灾,给广大人民群众的生产、生活带来了极大的困难和威胁,制约着国民经济的全面发展。
Gansu is one of the provinces with the most serious soil erosion in the country with a soil erosion area of 350,900 square kilometers, accounting for 78% of the province’s total land area. Water erosion area has 10 places (state, city), 69 counties (cities, districts), the land area of 184000 square kilometers, soil erosion area of 126900 square kilometers. According to the statistics by the end of 1990, the water erosion area has a total population of 17.87 million, accounting for 82% of the province’s total population. Severe soil erosion and frequent droughts have brought great difficulties and threats to the production and livelihood of the broad masses of people and restricted the all-round development of the national economy.