基于土壤侵蚀控制度的黄土高原水土流失治理潜力研究（英文）

编号 zgly0001584388

文献类型 期刊论文

文献题名 基于土壤侵蚀控制度的黄土高原水土流失治理潜力研究（英文）

作者 高海东  李占斌  贾莲莲  李鹏  徐国策  任宗萍  庞国伟  赵宾华 

作者单位 StateKeyLaboratoryBaseofEco-hydraulicEngineeringinAridArea(Xi’anUniversityofTechnology)  StateKeyLaboratoryofSoilErosionandDrylandAgricultureonLoessPlateau  InstituteofSoilandWaterConservation  ChineseAcademyofSciencesandMi 

母体文献 Journal of Geographical Sciences 

年卷期 2016年04期

年份 2016 

分类号 S157 

关键词 LoessPlateau  soilerosioncontroldegree  controlpotentialofsoilerosionandwaterloss  RUSLE 

文摘内容 The capacity of soil and water conservation measures, defined as the maximum quantity of suitable soil and water conservation measures contained in a region, were determined for the Loess Plateau based on zones suitable for establishing terraced fields, forestland and grassland with the support of geographic information system（GIS） software. The minimum possible soil erosion modulus and actual soil erosion modulus in 2010 were calculated using the revised universal soil loss equation（RUSLE）, and the ratio of the minimum possible soil erosion modulus under the capacity of soil and water conservation measures to the actual soil erosion modulus was defined as the soil erosion control degree. The control potential of soil erosion and water loss in the Loess Plateau was studied using this concept. Results showed that the actual soil erosion modulus was 3355 t·km–2·a–1, the minimum possible soil erosion modulus was 1921 t·km–2·a–1, and the soil erosion control degree was 0.57（medium level） in the Loess Plateau in 2010. In terms of zoning, the control degree was relatively high in the river valley-plain area, soil-rocky mountainous area, and windy-sandy area, but relatively low in the soil-rocky hilly-forested area, hilly-gully area and plateau-gully area. The rate of erosion areas with a soil erosion modulus of less than 1000 t·km–2·a–1 increased from 50.48% to 57.71%, forest and grass coverage rose from 56.74% to 69.15%, rate of terraced fields increased from 4.36% to 19.03%, and per capita grain available rose from 418 kg·a–1 to 459 kg·a–1 under the capacity of soil and water conservation measures compared with actual conditions. These research results are of some guiding significance for soil and water loss control in the Loess Plateau.