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Effects of organic amendment applications on nitrogen and phosphorus losses from sloping cropland in the upper Yangtze River

文献类型：期刊论文

作者Bah Hamidou1,2,3; Zhou Minghua1; Ren Xiao1; Hu Lei1; Dong Zhixing1; Zhu Bo1
刊名AGRICULTURE ECOSYSTEMS & ENVIRONMENT
出版日期2020
卷号302页码:2354-2366
ISSN号0167-8809
关键词Organic amendment Leaching Slope cropland Non-point source pollution Purplish soil
DOI10.1007/s11368-020-02617-z
通讯作者Zhu, Bo(bzhu@imde.ac.cn)
产权排序1
文献子类Article
英文摘要Controlling nitrogen (N) and phosphorus (P) loss from hill slope cropland is crucial to mitigate agricultural non-point source (AGNPS) pollution in the upper Yangtze River basin. However, pathways and loadings of soil N and P loss and their responses to agricultural management practices are not well documented. We conducted a three-year field experiment using the free-drain lysimeters to evaluate the long-term effects of organic amendments on N and P loss from sloping cropland. The field experiment included five experimental treatments: mineral fertilizers (NPK) as a control, fresh pig slurry as organic manure only (OM), crop residues only (CR), organic manure combined with NPK (OMNPK), and crop residues combined with NPK (CRNPK). The results show that organic amendment applications decrease discharges of overland flow and interflow compared with NPK treatment. On average, annual total N (TN) loss loadings ranges from 8.3 to 27.6 kg N ha(-1) , with 1.1 to 5.2 kg N ha(-1) of particulate N (PN), and 6.4 to 19.1 kg N ha(-1) of nitrate N (NO3-N) loss loadings, respectively for the five treatments. Thus, PN and NO3-N losses accounts for 13-19 %, and 63-78 % of TN loss loadings, respectively across the five treatments. However, the average annual total P (TP) loss loadings ranges from 0.23 to 0.84 kg P ha(-1), with 0.21 to 0.80 kg P ha(-1) of particulate P (PP) for the five treatments. Moreover, PP loss accounts for 92-96 % of TP loss loadings across the five treatments. Compared to NPK treatment, organic amendment applications significantly decrease TN loss, by 85 % via overland flow and 117 % via interflow on average. Organic amendment applications also significantly decrease TP loss, by 162 % via overland flow and, by 90 % via interflow compared with NPK treatment on average. This study shows that the combination of mineral fertilizers and organic amendments of either manure or crop residues can mitigate hydrological N and P loss from slope croplands in the upper Yangtze River basin.
电子版国际标准刊号1614-7480
WOS关键词NONPOINT-SOURCE POLLUTION ; GORGES-RESERVOIR AREA ; MANURE APPLICATION ; SOIL-PHOSPHORUS ; HILLSLOPE CROPLAND ; LEACHING LOSSES ; SURFACE RUNOFF ; SUBSURFACE ; FARMLAND ; BASIN
资助项目National Key Research and Development Project[2017YFD0200105] ; National Key Research and Development Project[2019YFD1100503] ; CAS Pioneer Hundred Talents Program ; CAS-TWAS President's Fellowship for international Ph.D. students
WOS研究方向Agriculture ; Environmental Sciences & Ecology
语种英语
出版者ELSEVIER
WOS记录号WOS:000528598500004
资助机构National Key Research and Development Project ; CAS Pioneer Hundred Talents Program ; CAS-TWAS President's Fellowship for international Ph.D. students
源URL[http://ir.imde.ac.cn/handle/131551/35608]  
专题成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
通讯作者Zhu Bo
作者单位1.Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, 610041, Chengdu, China;;
2.Institute Superior of Agronomy and Veterinary of Faranah (ISAV/F), Faranah 131, Guinea
3.International College, University of Chinese Academy of Sciences, Beijing, 100049, China;;
推荐引用方式
GB/T 7714		 Bah Hamidou,Zhou Minghua,Ren Xiao,et al. Effects of organic amendment applications on nitrogen and phosphorus losses from sloping cropland in the upper Yangtze River[J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT,2020,302:2354-2366.
APA Bah Hamidou,Zhou Minghua,Ren Xiao,Hu Lei,Dong Zhixing,&Zhu Bo.(2020).Effects of organic amendment applications on nitrogen and phosphorus losses from sloping cropland in the upper Yangtze River.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,302,2354-2366.
MLA Bah Hamidou,et al."Effects of organic amendment applications on nitrogen and phosphorus losses from sloping cropland in the upper Yangtze River".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 302(2020):2354-2366.

入库方式： OAI收割

来源：成都山地灾害与环境研究所

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