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Spatiotemporal intensification of net anthropogenic nitrogen input driven by human activities in China from 1990 to 2020

文献类型：期刊论文

作者Wang, Yazhu2; Duan, Xuejun2; Li, Pingxing2; Wang, Lingqing1
刊名ECOLOGICAL INDICATORS
出版日期2024-03-01
卷号160页码:11
关键词Net anthropogenic nitrogen input NANI Spatiotemporal intensification Human activities China
ISSN号1470-160X
DOI10.1016/j.ecolind.2024.111841
英文摘要The issue of global nitrogen overload is widely acknowledged as a pressing concern, with excessive nitrogen input resulting from human activities posing a significant threat to regional security. Notably, China emerges as a prominent contributor, exhibiting one of the highest anthropogenic nitrogen inputs worldwide. This study employs the Net Anthropogenic Nitrogen Input (NANI) as a pivotal tool to scrutinize the spatial and temporal patterns of nitrogen input in China spanning from 1990 to 2020. The total NANI reached its zenith in 2020 at 723,378.80 kg.km- 2.yr 1, marking a noteworthy 54.41 % increase from 1990. Among the various nitrogen sources, food/feed nitrogen input prevails, constituting 62.30 % of NANI, followed by atmospheric nitrogen deposition at 30.05 %. In less developed regions, primary contributors to NANI include nitrogen fertilizer application and crop nitrogen fixation. The spatial distribution of NANI exhibits a diminishing trend from east to west and north to south. Conducting a quantitative analysis, this study elucidates the impact of socioeconomic factors on NANI in China. Population density (r = 0.97) and GDP (r = 0.91) emerge as primary influencers, with agricultural factors such as livestock breeding (r = 0.70), grain production (r = 0.40), and fertilizer application (r = 0.65) following suit. In addressing the environmental challenges posed by excessive nitrogen, future mitigation strategies should prioritize enhancements in manure management practices and the implementation of pollution reduction facilities.
WOS关键词YANGTZE-RIVER BASIN ; PHOSPHORUS INPUTS ; TEMPORAL VARIABILITY ; NUTRIENT RETENTION ; REACTIVE NITROGEN ; ECONOMIC-GROWTH ; IMPACTS ; BUDGETS ; EXPORT ; NANI
资助项目National Natural Science Foundation of China[42101318] ; Science and Technology Planning Project of NIGLAS[NIGLAS2022GS07]
WOS研究方向Biodiversity & Conservation ; Environmental Sciences & Ecology
语种英语
WOS记录号WOS:001226898700001
出版者ELSEVIER
资助机构National Natural Science Foundation of China ; Science and Technology Planning Project of NIGLAS
源URL[http://ir.igsnrr.ac.cn/handle/311030/205494]  
专题陆地表层格局与模拟院重点实验室_外文论文
通讯作者Duan, Xuejun; Li, Pingxing
作者单位1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
2.Chinese Acad Sci, Nanjing Inst Geog & Limnol, Nanjing 210008, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Yazhu,Duan, Xuejun,Li, Pingxing,et al. Spatiotemporal intensification of net anthropogenic nitrogen input driven by human activities in China from 1990 to 2020[J]. ECOLOGICAL INDICATORS,2024,160:11.
APA Wang, Yazhu,Duan, Xuejun,Li, Pingxing,&Wang, Lingqing.(2024).Spatiotemporal intensification of net anthropogenic nitrogen input driven by human activities in China from 1990 to 2020.ECOLOGICAL INDICATORS,160,11.
MLA Wang, Yazhu,et al."Spatiotemporal intensification of net anthropogenic nitrogen input driven by human activities in China from 1990 to 2020".ECOLOGICAL INDICATORS 160(2024):11.

入库方式： OAI收割

来源：地理科学与资源研究所

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