云南东川陶家小河流域生态环境建设中的植被恢复及效益分析

云南东川陶家小河流域总面积为71.16 km2,无明显侵蚀的土地面积0.62 km2,占流域总面积的0.9%;植被遭到严重破坏导致水土流失的面积为70.54 km2,占流域总面积的99.1%,其生态环境已经相当恶劣。对流域土地资源进行开发种植利用能对流域内生态环境改善起到很大的促进作用,林业树种的种植能使水土流失严重的土地植物覆盖度大幅度增加,覆盖时间延长,降低温度和水分蒸发,缓减风速,改良土壤,以创造良好的生态环境。同时,对山区植被建设、恢复环境和陡坡耕地停耕还林还草的有效实施也是极大的支持和保障。最后,对东川陶家小河流域的植被恢复作了初步规划建议并进行了效益分析。

Vegetation Restoration and Efficiency Analysis of Ecological Environment Construction in Taojia Small River Basin in Dongchuan,Yunnan

The total area is 71.16 km2 of Taojia small river basin Dongchuan,Yunnan,the land area of no obvious erosion is 0.62 km2,accounting for 0.9％ of the total area of the basin.The area of vegetation suffered severe damage lead to soil erosion and water loss is 70.54 km2,accounting for 99.1％ of the total area of the basin,the ecological environnent is quite bad.The development,planting and utilization of land resources plays a big role in promoting for improving ecological environment in the basin,planting forestry tree is able to make a great increase of vegetation coverage in quite bad soil erosion and water loss land,extending coverage time,reducing temperature and moisture evaporation,reducing wind speed,improving soil are the ways to create a good ecological environment.At the same time,it＇ s a great support and guarantee for implementing effective to develop mountain vegetation,restore environment and stop cultivating,return the land to forestry in steep slope land.Finally,suggestions for primary planning for vegetation restoration in Taojia small river basin in Dongchuan were put forward,and the benefit analysis was conducted.