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马建小流域位于宁夏西吉县马建乡,共有8个村民小组,1732人,属黄土丘陵沟壑区第三副区,流域面积13.2Km~2,其中水土流失面积11.4Km~2。在治理前,实测年侵蚀模数9147t/Km~2,年输沙量12万吨。人均耕地7.8亩,广种薄收,亩产30公斤左右,群众生活困难,人均收入50元上下。 1980年列为综合治理重点后,进行了全面规划,针对本流域水土流失的特点,采取沟坡兼治,以治坡为主,生物措施与工程措施紧密结合的治理方法,在治理措施布局上:15°以上荒坡、退耕地和梁峁,采取隔坡带子田整地7455亩,营造乔木林1500亩,灌木林1189亩,乔灌混交林2000亩;种草2766亩(其
Majianxiao Watershed is located in Majian Township, Xiji County, Ningxia. There are 8 villager groups and 1732 villagers, belonging to the third sub-district of the Loess Hilly and Gully Region. The drainage area is 13.2Km ~ 2, of which the soil erosion area is 11.4Km ~ 2. Before the treatment, the measured annual erosion modulus 9147t / Km ~ 2, annual sediment discharge 120,000 tons. Per capita arable land of 7.8 acres, a wide variety of thin income, about 30 kg per mu, people’s living difficulties, per capita income up and down 50 yuan. In 1980, it was listed as a comprehensive management focus, and comprehensive planning was carried out. According to the characteristics of soil and water loss in this basin, adopting the governance method of combining ditch and slope with dominant slopes and biological measures and engineering measures closely, 15 ° above the slopes, returning farmland and Liang 峁, to take the slope zone Zizania 7455 acres of land preparation, to create 1,500 acres of arborvitae, 1189 acres of shrubs, tree and shrub mixed forest 2000 acres; 2766 acres of grass