论文部分内容阅读
通过对1956—2010年浑江的径流输沙变化规律分析,指出浑江流域产生水土流失的主要原因:每当发生大的社会动乱、管理上失控、植物资源及其生态环境遭到破坏时水土流失就会加重;大量使用长效除草剂,减少了农田地表的植被覆盖,对水土流失也会产生影响。提出治理水土流失的建议,旨在为浑江中上游流域的水土保持工作提供科学依据。
By analyzing the regularity of runoff and sediment transport in the Hunjiang River from 1956 to 2010, it points out the main causes of water and soil loss in the Hunjiang River catchment: whenever there are major social unrest, uncontrolled management and plant resources and their ecological environment are destroyed, The loss will be aggravated; the use of long-term herbicides in large quantities will reduce the vegetation cover on the farmland surface and will also have an impact on soil erosion. Put forward the proposal of controlling soil and water loss in order to provide a scientific basis for water and soil conservation in the middle and upper reaches of the Hunjiang River.