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Evaluation of gridded cropland phosphorus budget and use efficiency in China

文献类型：期刊论文

作者You, Shiyu4,5; Shi, Hao4,5; Lun, Fei6; Bian, Zihao1; Wang, Shaoqiang9; Yu, Zhen2,3; Yu, Qiang8; Yao, Yuanzhi7
刊名JOURNAL OF ENVIRONMENTAL MANAGEMENT
出版日期2024-11-01
卷号370页码:12
关键词Phosphorus budget Phosphorus use efficiency Soil erosion Croplands
ISSN号0301-4797
DOI10.1016/j.jenvman.2024.122974
产权排序5
英文摘要Changes in soil phosphorus (P) distribution and budget critically impact the sustainability of agricultural systems. Yet, few studies have examined the long-term evolution of cropland (and crop-specific) P budget and use efficiency (PUE) at a grid level. Here, we conducted a comprehensive evaluation of the cropland P budget and PUE and their human-environmental drivers in China during 1992-2018 at a spatial resolution of 0.1 degrees. The results reveal a significant shift in China's cropland P budget from a deficit of -3.70 Tg P yr- 1 in 1992 to a surplus of 0.31 Tg P yr- 1 in 2018, mainly driven by increased fertilizer application and decreased soil erosion by water. The concurrent national average cropland PUE initially decreased from 0.51 in 1992 to 0.34 in 2003, but afterwards increased to 0.39 in 2015. An environmental-Kuznets-curve-like (EKC) relationship was identified between the national average P budget (inverted U-shaped) or PUE (U-shaped) and per capita GDP in China, with the turning point occurring in 2013 for the previous and at per capita GDP of US$8.85 k (constant 2017 US$) for the latter. But PUE had been well below a threshold of 0.40 at the national level after crossing the turning point and showed a considerable trend divergence among crops, particularly for cash ones. Spatially, northern and northwestern China exhibited high positive P budget but achieved relatively low PUE in the 2010s. Crop leaf area, irrigation, fertilizer input, and precipitation were identified as the most important factors determining the multi-year spatial pattern of P budget, while fertilizer input, temperature, and residue return played a dominant role in regulating PUE. Our findings highlight the need for a long-term commitment to regionalized and cropspecific synthetic management practices for controlling P inputs and minimizing P loss in the context of global change in China.
WOS关键词SUSTAINABLE INTENSIFICATION ; SOIL-PHOSPHORUS ; FOOD SECURITY ; NITROGEN ; TEMPERATURE ; MANAGEMENT ; RECONSTRUCTION ; IMBALANCES ; RESIDUES ; DYNAMICS
资助项目Joint CAS-MPG Research Project[HZXM20225001MI] ; National Key Research and Development Program of China[2023YFF1303700] ; Natural Science Foundation of Jiangsu Province[BK20240599]
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:001343860000001
出版者ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
资助机构Joint CAS-MPG Research Project ; National Key Research and Development Program of China ; Natural Science Foundation of Jiangsu Province
源URL[http://ir.igsnrr.ac.cn/handle/311030/210819]  
专题生态系统网络观测与模拟院重点实验室_外文论文
通讯作者Shi, Hao
作者单位1.Nanjing Normal Univ, Sch Geog, Nanjing 210046, Peoples R China
2.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteorol, Nanjing 210044, Peoples R China
3.Nanjing Univ Informat Sci & Technol, Inst Ecol, Sch Appl Meteorol, Nanjing 210044, Peoples R China
4.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China
5.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
6.China Agr Univ, Coll Land Sci & Technol, Beijing 100193, Peoples R China
7.East China Normal Univ, Sch Geog Sci, Shanghai 610000, Peoples R China
8.Northwest A&F&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess Pl, Yangling 712100, Peoples R China
9.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China
推荐引用方式
GB/T 7714		 You, Shiyu,Shi, Hao,Lun, Fei,et al. Evaluation of gridded cropland phosphorus budget and use efficiency in China[J]. JOURNAL OF ENVIRONMENTAL MANAGEMENT,2024,370:12.
APA You, Shiyu.,Shi, Hao.,Lun, Fei.,Bian, Zihao.,Wang, Shaoqiang.,...&Yao, Yuanzhi.(2024).Evaluation of gridded cropland phosphorus budget and use efficiency in China.JOURNAL OF ENVIRONMENTAL MANAGEMENT,370,12.
MLA You, Shiyu,et al."Evaluation of gridded cropland phosphorus budget and use efficiency in China".JOURNAL OF ENVIRONMENTAL MANAGEMENT 370(2024):12.

入库方式： OAI收割

来源：地理科学与资源研究所

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