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

doi:10.1007/s11368-020-02617-z

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部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

	Effects of organic amendment applications on nitrogen and phosphorus losses from sloping cropland in the upper Yangtze River
	Bah Hamidou 1,2,3; Zhou Minghua 1; Ren Xiao 1; Hu Lei 1; Dong Zhixing 1; Zhu Bo 1
刊名	AGRICULTURE ECOSYSTEMS & ENVIRONMENT
	2020
卷号	302 页码:2354-2366
关键词	Organic amendment Leaching Slope cropland Non-point source pollution Purplish soil
ISSN号	0167-8809
DOI	10.1007/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
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关键词	NONPOINT-SOURCE POLLUTION ; GORGES-RESERVOIR AREA ; MANURE APPLICATION ; SOIL-PHOSPHORUS ; HILLSLOPE CROPLAND ; LEACHING LOSSES ; SURFACE RUNOFF ; SUBSURFACE ; FARMLAND ; BASIN
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
内容类型	期刊论文
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.International College, University of Chinese Academy of Sciences, Beijing, 100049, China;; 3.Institute Superior of Agronomy and Veterinary of Faranah (ISAV/F), Faranah 131, Guinea
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.