论文部分内容阅读
淮河流域水土流失面积已达5.8万平方公里.占流域总面积的五分之一。治淮需要巨大的工程措施,但在水土保持上,生物措施的作用往往是工程措施所难以办到的。因此,当前水土保持工作的重点应该是恢复和增加山丘区的植被覆盖率,减少雨滴对地面的冲击,阻滞地面径流的激烈流动。本刊从今年第一期起将陆续介绍水土保持性能好、经济价值高的植物,供各地植被养护参考。
The area of soil erosion in Huaihe River Basin has reached 58,000 square kilometers, accounting for one fifth of the total area of the basin. Huaihuai need huge engineering measures, but in the soil and water conservation, the biological measures are often the role of engineering measures are difficult to do. Therefore, the current water and soil conservation efforts should focus on the restoration and increase of vegetation coverage in the hills, reduce the impact of raindrops on the ground and block the intense flow of surface runoff. Articles from the first phase of this year will be introduced one after another soil and water conservation performance, high economic value of plants for conservation around the reference.