论文部分内容阅读
内蒙古自治区准格尔旗皇甫川流域的十三条试点小流域,总流域面积11374平方公里,1985年总人口为3549人,平均人口密度31人/平方公里,总劳力1334个,人均耕地4.45亩。气候条件属典型的大陆性气候,年雨量仅400毫米左右,平均气温7.3℃。植被稀少,水土流失十分严重,侵蚀模数均超过1万吨/平方公里。 这批流域分别于1980年和1981年开始试点,现将治理试点在各方面的作用作如下分析:
Inner Mongolia Autonomous Region Zhunge’er Qi Huangfuchuan watershed 13 pilot watershed, the total drainage area of 11374 square kilometers, in 1985 the total population of 3549 people, with an average population density of 31 people / km2, total labor force 1334, per capita arable land 4.45 mu . Climatic conditions are typical of the continental climate, the annual rainfall is only about 400 mm, the average temperature of 7.3 ℃. Vegetation is scarce, soil erosion is very serious, erosion modulus are more than 10,000 tons / square kilometer. The watersheds started piloting in 1980 and 1981, respectively, and now analyze the role of governance pilots in various aspects as follows: