微景观结构对水土保持影响的试验分析(英文)

An Experimental Analysis of Water and Soil Conservation Effected by Micro-landscape Structure

[目的]此项对比试验是为了探求不同的土壤类型和植被种植组合前提下土壤流失效应,为后续在该地区的生态恢复工程提供实验依据。[方法]利用微景观结构对水分的运动影响原理和不同景观因素在空间上的不同组合,设计了3个不同实验地的多种土壤、作物和立地条件组合。[结果]不同土壤、坡度、种植品种极大影响水土流失量。草地极大地增加了水入渗,减少水土流失;豆科作物比禾本科作物苔麸在减少水土流失有更佳表现。[结论]分析试验数据,为埃塞俄比亚阿姆哈拉州减少水土流失,合理农业种植与保护模式提供科学参考。

[Objective] This comparative experiment was to explore the soil loss con- trol effects under cultivation combination of different soil and vegetation types, and to provide scientific basis for the upcoming pilot project of ecological recovery. [Method] Both the rudiment of water locomotion functioned by micro-landscape structures and different spatial combinations of various landscape constituents are considered, thus, the combination of multi-soil type, crop species and site conditions is designed in three different experimental sites. [Result] Soil loss estimates in experiments in South Wello significantly depended on various soil type, slope, vegetation and type of con- servation structure; grass cover tremendously reduces soil loss; legume cultivation performed better than cereal cultivation in soil loss control. [Conclusion] By conduct- ing the data analysis of the experiment, a scientific reference is proposed to the agri- culture planting and protective mode for the alleviation of water and soil loss in Amhara Region, Ethiopia.