水土保持研究2012，Vol.19Issue(4)：6-9,4.
云蒙湖流域不同土地利用类型的土壤侵蚀特征分析
Analysis on Features of Soil Erosion with Different Land Uses in the Yunmeng Lake Watershed
摘要
Abstract
The effects of land use structure on soil loss are very important for territory protection. In order to investigate the influence of land uses on soil erosion over the watershed, RS and GIS techniques were utilized and RUSLE model were selected to acquire the spatial data of the land uses and the soil erosion of the Yun meng Lake watershed. The results showed that during the period of 1986--2010, soil erosion situation had improved with the soil and water conservation and ecological restoration project, but the soil erosion was still serious with the total annual erosion amounting to 6.3 million tons from 6.47 million tons. In all types of land uses, farmland showed the most serious erosion with high soil erosion modulus 5 325 t/（km^2 . a） and 5 504 t/（km^2. a）, respectively, accounting for 85.8% and 84.7% of total soil erosion. Additionally, the grassland was another main object to be protected with the total proportion of strong, extremely strong and severe erosion zones of 40 %0 and 44 %, respectively. As farmland and grassland types in turn, the erosion area of residential land increased from 1 010 hm^2 to 2608 hm^2 , and soil erosion amount increased from 54000 t to 142000 t.关键词
土地利用/土壤侵蚀/云蒙湖流域Key words
land use/soil erosion/Yunmeng Lake watershed分类
农业科技引用本文复制引用
泮雪芹,刘占仁,孟晓云,于兴修..云蒙湖流域不同土地利用类型的土壤侵蚀特征分析[J].水土保持研究,2012,19(4):6-9,4.基金项目
山东省科技攻关项目 （）
临沂市重大科技创新项目 （）
