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Inequality in agricultural greenhouse gas emissions intensity has risen in rural China from 1993 to 2020

文献类型： 外文期刊

作者： Xu, Xiangbo 1 ; Zhao, Qiran 3 ; Guo, Jianbing 5 ; Li, Chang 1 ; Li, Jing 1 ; Niu, Kunyu 7 ; Jin, Shuqin 8 ; Fu, Chao 1 ; Gaffney, Paul P. J. 9 ; Xu, Yan 1 ; Sun, Mingxing 1 ; Xue, Yinghao 10 ; Chang, Dunhu 11 ; Zhang, Yumei 3 ; Si, Wei 3 ; Fan, Shenggen 3 ; Zhang, Linxiu 1 ;

作者机构： 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China

2.United Nations Environm Programme, Int Ecosyst Management Partnership, Beijing, Peoples R China

3.China Agr Univ, Coll Econ & Management, Beijing, Peoples R China

4.China Agr Univ, Acad Global Food Econ & Policy, Beijing, Peoples R China

5.Renmin Univ China, Sch Agr Econ & Rural Dev, Beijing, Peoples R China

6.Univ Chinese Acad Sci, Beijing, Peoples R China

7.Chinese Acad Agr Sci, Inst Agr Econ & Dev, Beijing, Peoples R China

8.Minist Agr & Rural Affairs, Res Ctr Rural Econ, Beijing, Peoples R China

9.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing, Peoples R China

10.Minist Agr & Rural Affairs, Rural Energy & Environm Agcy, Beijing, Peoples R China

11.Renmin Univ China, Sch Environm & Nat Resources, Beijing, Peoples R China

期刊名称：NATURE FOOD （ 影响因子：21.9； 五年影响因子：28.3 ）

ISSN：

年卷期： 2024 年 5 卷 11 期

页码：

收录情况： SCI

摘要： Reducing greenhouse gas (GHG) emissions in crop production while ensuring emission equity is crucial for sustainable agriculture in China, yet long-term large-scale data on GHG emissions intensity (GEI) are limited. Using an extensive dataset based on surveyed farm households (n > 430,000 households) from 1993 to 2020, we reveal that 2015 was a turning point for GEI levels, which dropped 16% in 2020, while inequality-measured as average GHG emissions per unit planted area-increased 13%. The key driving forces behind such trends included farmland input, all other inputs, agricultural labour input and total factor productivity but not capital input. Notably, farmland input and all other inputs contributed to 80% of the inequality, while contribution of total factor productivity gradually declined and was replaced by migration-induced agricultural labour input differences. Reducing GEI levels and guarding against widening inequality require optimizing production factor inputs.

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