典型文献
Transport of phosphorus in runoff and sediment with surface runoff from bare purple soil during indoor simulated rainfall
文献摘要:
Phosphorus(P)in surface runoff from purple soil is a critical element of agricultural non-point source pollution,leading to eutrophication of surface waters in the Three Gorges Reservoir Area(TGRA)of China.This work aimed to understand the processes and mechanisms of P losses from bare purple soil.Based on an indoor rainfall simulation experiment,we focused on the processes of surface runoff and P losses via different hydrological pathways.Experimental treatments included three simulated rainfall intensities,four slope gradients,and three fertilizer treatments.P loss from sediment was the main pathway in the purple soil,and bioavailable P was mainly transferred in dissolved P(DP)of runoff water.The P loss loads tend to grow with the increase of the slope until 25° for the maximum load of runoff water and 20° for the maximum load of sediment.Concentrations of DP in the surface runoff after fertilizer application can exceed the estimates of those required for accelerated eutrophication.Sediment P control might be an essential way for reducing P loss in purple soil for the local government and farmers of TGRA.
文献关键词:
中图分类号:
作者姓名:
MA Xiao;YANG Jie;ZHOU Xiang-jun;WU Hong-tao;XIONG Qiao;LI Ye
作者机构:
College of Urban and Environmental Sciences,Hubei Normal University,Huangshi 435002,China;Hubei Key Laboratory of Pollutant Analysis&Reuse Technology,Hubei Key Research Institute of Humanities&Social Science,Huangshi 435002,China;School of Resource and Environmental Engineering,Wuhan University of Technology,Wuhan 430070,China
文献出处:
引用格式:
[1]MA Xiao;YANG Jie;ZHOU Xiang-jun;WU Hong-tao;XIONG Qiao;LI Ye-.Transport of phosphorus in runoff and sediment with surface runoff from bare purple soil during indoor simulated rainfall)[J].山地科学学报(英文版),2022(08):2333-2345
A类:
TGRA
B类:
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AB值:
0.517355
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