赣南地区水土流失时空变化和评价研究  

Temporal and Spatial Variation and Evaluation of Soil and Water Loss in the Southern Jiangxi

作　　者：杨洁[1] 汪邦稳[1,2] 

机构地区：[1]江西省水土保持科学研究所,江西南昌330029 [2]北京师范大学地理学与遥感科学学院,北京100875

出　　处：《中国水土保持》2011年第12期10-12,67,共3页Soil and Water Conservation in China

基　　金：水利部科技推广计划项目(TG1141);江西省水利厅科技项目(200909)

摘　　要：基于CSLE模型,在构建适合赣南地区侵蚀环境的该模型各因子算法的基础上,利用现有的基础数据,对该地区30年来不同时期的水土流失进行了评价。结果表明:近30年来尤其是近10年来,赣南地区水土流失治理迅速,效果明显,但目前水土流失依然比较严重,尤其是强烈以上的侵蚀面积所占比重较大;各因子在不同时期对水土流失影响的主导程度不同,随着治理程度的提高,影响水土流失的主导因子逐渐减少;通过水土流失预测,在未来的10年和30年里,赣南地区的水土流失面积将会进一步减小,尤其是强烈以上的面积减小迅速,但该区水土流失潜在可治理面积比较大,还需要进一步加强综合治理。The paper evaluated soil and water loss of the southern Jiangxi at different periods in the last 30 years by using existing basic data and CSLE model,based on algorithm of each factor for establishing a model which suits the erosion environment of the southern Jiangxi.The outcomes show that: a) in the last 30 years especially in the last 10 years,the soil and water loss treatment of the southern Jiangxi is fast and effectual.But,at present,the soil and water loss is still severe.Especially the proportion of erosion area at intense level is greater;b) the influence of leading function of each factor to soil and water loss is different at different periods.The leading factors that effect soil and water loss reduce gradually along with the increase of treatment level and;c) through scenarios simulation,soil and water loss area of the region will be further reduced,especially quick reduction for the area at intense level in the coming 10 years and 30 years.But,the potential areas that can be treated is larger,which need further integrated treatment.

关 键 词：水土流失因子 水土流失评价 江西南部 

分 类 号：S157.1[农业科学—土壤学]