水土保持通报2018，Vol.38Issue(1)：8-11,17,封2,6.DOI:10.13961/j.cnki.stbctb.2018.01.002
基于USLE模型的2001-2015年江西省土壤侵蚀变化研究
Soil Erosion Changes in Jiangxi Province from 2001 to 2015 Based on USLE Model
摘要
Abstract
[Objective] To estimate regional soil erosion modulus and the dynamic change accurately for soil and water conservation planning.[Methods] Using USLE (universal soil loss equation) model,the soil erosion modulus in Jiangxi Province in 2001 and 2015 were estimated with remote sensing data,meteorological data and DEM.Then the temporal and spatial changes of soil erosion intensity in Jiangxi Province from 2001 to 2015 were analyzed.[Results] From 2001 to 2015,soil erosion in Jiangxi Province showed a declining tendency.The soil erosion modulus in 2001 was 7 042.4 t/(km2 · a) and the soil erosion modulus in 2015 was 6375.3 t/(km2 · a),decreased by 9.5％.The soil erosion intensity has decreased in most of the cities in Jiangxi Province.The soil modulus decreased significantly in Fuzhou,Yichun,Ganzhou and Pingxiang Cities.But soil erosion modulus increased in a few cities such as Jiujiang,Nanchang and Xinyuin.The transformation matrix of soil erosion intensity indicated that soil erosion intensity remained unchanged in 52.7％ of the total area of Jiangxi Province from 2001 to 2015.About 25.8％ of the total area experienced soil erosion intensity transformation from high level to low level during 2001-2015.[Conclusion] The soil erosion situation in Jiangxi Province has improved in general,but the soil erosion in some cities has expanded further,and the situation of soil and water loss remains serious.关键词
江西省/USLE/土壤侵蚀Key words
Jiangxi Province/USLE/soil erosion分类
农业科技引用本文复制引用
周夏飞,马国霞,曹国志,於方,周颖,贾倩,张宇航..基于USLE模型的2001-2015年江西省土壤侵蚀变化研究[J].水土保持通报,2018,38(1):8-11,17,封2,6.基金项目
国家自然科学基金项目“中国区域经济发展的生态环境代价核算及趋势模拟”(41371533) （41371533）
国家科技支撑计划课题(2015BAK12B02) （2015BAK12B02）
