生态环境学报2011，Vol.20Issue(4)：737-742,6.
辽宁浑河流域不同土地类型地表径流和壤中流氮、磷流失特征
Characteristics of nitrogen and phosphorus losses through surface flow and interflow on different types of land in Liaoning Hunhe Basin
摘要
Abstract
Simulated artificial rainfall experiments have been carried out to study the characteristics of nitrogen and phosphorus losses through surface flow and interflow on different types of land in Liaoning Hunhe Basin. The results indicated that: ( 1 )there are remarkable differences between Nitrogen and phosphorus loss characteristics in surface flow and that in interflow. The output density of nitrogen and phosphorus through surface flow is high in the initial time but tends to be stable with artificial rainfall continuing.The output density of nitrogen and phosphorus through interflow keep relative stable in the whole runoff process. ( 2 ) In the whole artificial rainfall process, nitrogen and phosphorus losses by surface flow take a high proportion on cultivated land and grassland, but take a low proportion in interflow. ( 3 ) The difference in nitrogen and phosphorus losses through surface flow and interflow on cultivated land and grassland shows that soil infiltration mechanism has large reduction function, especially significant for total phosphorus in grassland, reaching more than 90％.关键词
人工模拟降雨/养分流失/土地利用类型/地表径流/壤中流Key words
simulated artificial rainfall/ soil nutrients loss/ land-use type/ surface flow/ interflow分类
农业科技引用本文复制引用
周林飞,郝利朋,孙中华..辽宁浑河流域不同土地类型地表径流和壤中流氮、磷流失特征[J].生态环境学报,2011,20(4):737-742,6.基金项目
国家自然科学基金项目(50979012) （50979012）
