Topography, Soil Elemental Stoichiometry and Landscape Structure Determine the Nitrogen and Phosphorus Loadings of Agricultural Catchments in the Subtropics

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成果类型：

期刊论文

作者：

Li, Yong;Wang, Yi;Liu, Ji;Wang, Meihui;Shen, Jianlin;...

通讯作者：

Yong Li

作者机构：

[Li, Yong] Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atmo, Beijing 100029, Peoples R China.

[Liu, Ji; Li, Yong; Shen, Jianlin; Liu, Xinliang] Chinese Acad Sci, Inst Subtrop Agr, Key Lab Agro Ecol Proc Subtrop Reg, Changsha Res Stn Agr & Environm Monitoring, Changsha 410125, Peoples R China.

[Li, Yong] Univ Melbourne, Fac Vet & Agr Sci, Parkville, Vic 3010, Australia.

[Wang, Yi] Ludong Univ, Coll Resources & Environm Engn, Yantai 264025, Peoples R China.

[Liu, Ji] Cent China Normal Univ, Hubei Prov Key Lab Geog Proc Anal & Simulat, Wuhan 430079, Peoples R China.

通讯机构：

[Yong Li] F

Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Parkville, VIC 3010, Australia<&wdkj&>Key Laboratory of Agro-Ecological Processes in Subtropical Regions and Changsha Research Station for Agricultural & Environmental Monitoring, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China<&wdkj&>State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China<&wdkj&>Author to whom correspondence should be addressed.

语种：

英文

关键词：

N and P loadings;soil elemental stoichiometry;agricultural catchments;subtropics;water quality controls

期刊：

Land

ISSN：

2073-445X

年：

2023

卷：

期：

页码：

568-

DOI：

10.3390/land12030568

基金类别：

This study was financially supported by the National Key Research and Development Programs of China (grant number 2017YFD0800104) and the National Natural Science Foundation of China (grant number 42161144002).

机构署名：

本校为其他机构

院系归属：

城市与环境科学学院

摘要：

The control of nitrogen (N) and phosphorus (P) loadings to receiving waters is often overcompensated for by catchment planners. The objectives of this study, which investigated nine catchments in the subtropics of China, were to (i) quantify the explicit relationships between the N and P loadings to receiving waters and the topographic, soil and landscape characteristics of catchments, (ii) identify key impact factors and (iii) identify the most influential N and P loading pathways via catchments. Our collective data indicated that elevation-relief ratio, soil elemental stoichiometry and lands...

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Topography, Soil Elemental Stoichiometry and Landscape Structure Determine the Nitrogen and Phosphorus Loadings of Agricultural Catchments in the Subtropics

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