水土保持通报2012，Vol.32Issue(5)：1-7,F0002,8.
黄土高原不同侵蚀类型区侵蚀产沙强度变化及其治理目标
Variation of Sediment Yield in Different Soil Erosion Areas and Its Control Standards on the Loess Plateau
摘要
Abstract
Based on the distribution of hydrological stations,the study area was divided into 98 sections controlled by hydrological stations and then,234 soil erosion units were determined according to the different soil erosion areas.The variation of sediment yield,sediment reduction rate,and the area variation and spatial distribution were analyzed for different degrees of sediment yield in the different soil erosion areas in different control periods.The control standards for the different soil erosion areas on the Loess Plateau in the future 20 years were put forwarded: Soil loss is controlled at 3.6×108 t and soil erosion modulus is less than 1 300 t/(km2·a).For the different soil erosion areas,soil erosion modulus is 3 000 t/(km2·a) in loess Mao hilly and gully region,2 000 t/(km2·a) in loess Liang hilly and gully region,2 000 t/(km2·a) in arid loess hilly and gully region,1 000 t/(km2·a) in loess gentle slope hilly and gully region,1 000 t/(km2·a) in wind and sand loess hilly and gully region,1 000 t/(km2·a) in loess piedmont hilly and gully region,300 t/(km2·a) in forest loess hilly and gully region,1 500 t/(km2·a) in loess tableland hilly and gully region,3 000 t/(km2·a) in loess residual plateau hilly and gully region,500 t/(km2·a) in loess terraces region,500 t/(km2·a) in wind and sand grassland region,and 100 t/(km2·a) in plateau mountain and rock region.The key control areas in the future 20 years are loess Mao hilly and gully region(2.20×104 km2),arid loess hilly and gully region(1.50×104 km2),loess tableland hilly and gully region(8 600 km2),and loess Liang hilly and gully region(4 600 km2).关键词
侵蚀产沙/治理标准/侵蚀类型区/黄土高原Key words
sediment yield/control standard/soil erosion area/Loess Plateau分类
农业科技引用本文复制引用
王万忠,焦菊英,马丽梅,穆兴民..黄土高原不同侵蚀类型区侵蚀产沙强度变化及其治理目标[J].水土保持通报,2012,32(5):1-7,F0002,8.基金项目
国家科技支撑计划项目“黄土高原水土流失综合防治技术研究” （）
国家自然科学基金重点项目“黄土丘陵区土壤侵蚀对植被恢复过程的干扰与植物的抗侵蚀特性研究” （）
