水土保持学报2012，Vol.26Issue(4)：77-80,4.
河南省淮河流域不同土地利用类型氮磷流失的特征分析
Characteristics Analysis of Nitrogen and Phosphorus Loss About Different Land Use Types of Huaihe River Basin in Henan Province
摘要
Abstract
In order to know the agricultural non-point source pollution characteristics oi Huaihe river basin in Henan province, representative land types and test points were selected and runoff plots were established according to the topography, rainfall and land utilization types of Huaihe river basin in Henan province. Two years consecutive tests of nitrogen and phosphorus loss experiment were conducted. Concentration difference and loss difference of nitrogen and phosphorus in different land use types were analyzed. Correlations between nitrogen and phosphorus loss quantity and runoff and sediment volume were also analyzed. The results show that it has obvious differences of nitrogen and phosphorus loss in different land types. In the 5 kinds of land types, the largest amount of nitrogen toss is 10.21 kg/hm2 in the land which plants vegetable, the largest amount of phosphorus loss is 3.98 kg/hm2 in the land which plants flower. Dissolved nitrogen is the main loss form in the surface runoff, and adsorption phosphorus is the main loss form. It has obvious correlation between nitrogen and phosphorus loss quantity and runoff.关键词
农业面源污染/土地利用类型/地表径流/氮磷流失Key words
agricultural non-point source pollution/land use types/surface runoff/nitrogen and phosphorusIOSS分类
资源环境引用本文复制引用
沈连峰,苗蕾,韩敏,葛伟,李有..河南省淮河流域不同土地利用类型氮磷流失的特征分析[J].水土保持学报,2012,26(4):77-80,4.基金项目
河南省科技攻关项目 （）
