Cropland nitrous oxide emissions exceed the emissions of RCP 2.6: A global spatial analysis
文献类型： 外文期刊
作者： Tian, Xingshuai 1 ; Cong, Jiahui 1 ; Wang, Hongye 2 ; Zheng, Huifang 3 ; Wang, Zihan 1 ; Chu, Yiyan 1 ; Wang, Yingcheng 1 ; Xue, Yanfang 4 ; Yin, Yulong 1 ; Cui, Zhenling 1 ;
作者机构： 1.China Agr Univ, Natl Acad Agr Green Dev, Coll Resources & Environm Sci, Key Lab Plant Soil Interact,Minist Educ,Key Lab Lo, Beijing 100193, Peoples R China
2.Minist Agr & Rural Affairs, Cultivated Land Qual Monitoring & Protect Ctr, Beijing, Peoples R China
3.Henan Inst Sci & Technol, Sch Life Sci & Technol, Xinxiang 453003, Peoples R China
4.Shandong Acad Agr Sci, Maize Res Inst, Jinan 250023, Peoples R China
关键词： Cropland; EFs; N2O emission; Boundary; Exceedance
期刊名称：SCIENCE OF THE TOTAL ENVIRONMENT （ 影响因子：9.8； 五年影响因子：9.6 ）
ISSN： 0048-9697
年卷期： 2023 年 858 卷
页码：
收录情况： SCI
摘要： Nitrous oxide (N2O), as a potent greenhouse gas, must be limited to prevent the global temperature increasing by >2 degrees C. Cropland is the largest source of anthropogenic N2O emissions; however, earlier estimates for emissions and their exceedances still remain uncertainties. Here, we used a spatially explicit model to estimate cropland N2O emis-sion in 2014 by refined grid-level crop-specific EFs and considered the background emission. We also sought to deter-mine where N2O emissions exceed the "boundary" through analysis of spatial data from representative concentration pathway (RCP) 2.6. The global cropland N2O emission was 2.92 +/- 0.59 Tg N yr-1, which far exceeds the 0.82 Tg N yr-1 boundary, over 90 % of cropland areas exceeded the boundary. Western Europe, Southeastern China, Pakistan, and the Ganges Plain exceeded the boundary by >2 kg N ha-1 yr-1. The boundary exceedances showed a positive linear response with respect to total cropland emission and a quadratic response to GDP per capita at the country level. Our study highlights the necessity of accurate estimations of spatial variations in cropland N2O emissions and evaluation of exceedances, to facilitate the development of more effective mitigation measures in different regions.
- 相关文献
作者其他论文 更多>>
-
Increasing Soil Organic Carbon for Higher Wheat Yield and Nitrogen Productivity
作者：Pan, Junxiao;Miao, Qi;Xue, Yanfang;Qi, Shijun;Cui, Zhenling;Pan, Junxiao;Miao, Qi;Zhang, Wenjie;Cui, Zhenling;Pan, Junxiao;Wang, Hongye;Wang, Weidong
关键词：Manure; soil organic carbon; N management; yield; N productivity
-
Moderation of nitrogen input and integration of legumes via intercropping enable sustainable intensification of wheat-maize double cropping in the North China Plain: A four-year rotation study
作者：Xia, Haiyong;Qiao, Yuetong;Li, Xiaojing;Xue, Yanhui;Wang, Na;Xia, Haiyong;Qiao, Yuetong;Li, Xiaojing;Xia, Haiyong;Yan, Wei;Xue, Yanfang;Cui, Zhenling;Cui, Zhenling;Xia, Haiyong;van der Werf, Wopke
关键词：Simultaneous intercropping; Land equivalent ratio; Gross margin; Sustainability and resilience; Temporal stability
-
Dissecting the relationship between yield and mineral nutriome of wheat grains in double cropping as affected by preceding crops and nitrogen application
作者：Xia, Haiyong;Li, Xiaojing;Qiao, Yuetong;Xue, Yanhui;Kong, Lingan;Xia, Haiyong;Li, Xiaojing;Qiao, Yuetong;Kong, Lingan;Xia, Haiyong;Yan, Wei;Xue, Yanfang;Cui, Zhenling;Ma, Lei;Zhao, Qingyue;Cui, Zhenling;Xia, Haiyong;Zhao, Qingyue;van der Werf, Wopke
关键词：Crop rotation; Legume; Dilution effect; Zn biofortification; Nutritional quality
-
Optimizing Phosphorus Application for Winter Wheat Production in the Coastal Saline Area
作者：Liu, Lu;Miao, Qi;Xue, Yanfang;Qi, Shijun;Cui, Zhenling;Liu, Lu;Miao, Qi;Li, Junchao;Cui, Zhenling;Wang, Hongye;Zhang, Jishi;Meng, Qingfeng
关键词：phosphorus fertilizer source; phosphorus application rate; soil available phosphorus; phosphorus use efficiency; aboveground P uptake; yield
-
Integrating crop redistribution and improved management towards meeting China's food demand with lower environmental costs
作者：Wang, Zihan;Yin, Yulong;Wang, Yingcheng;Tian, Xingshuai;Ying, Hao;Zhang, Qingsong;Zhang, Fusuo;Cui, Zhenling;Xue, Yanfang;Oenema, Oene;Li, Shengli;Zhou, Feng;Du, Mingxi;Ma, Lin;Batchelor, William D.
关键词：
-
Interaction Effects of Nitrogen Rates and Forms Combined With and Without Zinc Supply on Plant Growth and Nutrient Uptake in Maize Seedlings
作者：Xue, Yanfang;Yan, Wei;Gao, Yingbo;Zhang, Hui;Jiang, Liping;Qian, Xin;Cui, Zhenling;Wang, Huimin;Li, Zongxin;Liu, Kaichang;Jiang, Liping;Liu, Shutang;Cui, Zhenling;Zhang, Chunyan
关键词：maize; nitrogen rates and forms; zinc supply; interaction effects; nutrient uptake; root morphology
-
Source-Sink Manipulation Affects Accumulation of Zinc and Other Nutrient Elements in Wheat Grains
作者：Wang, Lan;Xia, Haiyong;Li, Xiaojing;Qiao, Yuetong;Xue, Yanhui;Jiang, Xilong;Kong, Lingan;Wang, Lan;Xia, Haiyong;Li, Xiaojing;Qiao, Yuetong;Kong, Lingan;Xia, Haiyong;Jiang, Xilong;Yan, Wei;Xue, Yanfang;Liu, Yumin
关键词：photoassimilate; micronutrient; macronutrient; phytohormone; biofortification; phytate; bioavailability
