To burn or retain crop residues on croplands? An integrated analysis of crop residue management in China

doi:10.1016/j.scitotenv.2019.01.150

	To burn or retain crop residues on croplands? An integrated analysis of crop residue management in China
	Chen, Jinghua 1,2; Gong, Yazhen 3; Wang, Shaoqiang 1,2; Guan, Baozhu 4,5; Balkovic, Juraj 6,7; Kraxner, Florian 6
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2019-04-20
卷号	662 页码:141-150
关键词	Crop residue management Soil carbon Carbon emissions Economic analysis China
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2019.01.150
通讯作者	Gong, Yazhen(ygong.2010@ruc.edu.cn) ; Wang, Shaoqiang(sqwang@igsnrr.ac.cn)
英文摘要	Crop residue burning influences human health and global climate change. In China-the world's largest crop residue producer-farmers burn almost one quarter of their crop residues in the field after harvest, despite the government providing financial incentives such as subsidies to retain crop residues. This study combined economic analyses with simulations of soil carbon accumulation and carbon emission reduction associated with different residue management practices to determine the minimum level of incentives needed for Chinese farmers to shift from burning to retaining crop residues for generating carbon benefits. Simulation results showed that [1] the density of topsoil organic carbon in China's croplands would have increased from about 21.8 t ha(-1) in 2000 to 23.9 t ha(-1) in 2010, and soil organic carbon sequestration would have reached 24.4 Tg C yr(-1) if farmers had shifted from burning to retaining crop residues on croplands during this period; and [2] retaining crop residues would have avoided about 149.9 Tg of CO2 emission per year. Economic analyses showed that [1] existing subsidies in all regions of China, except Northeast China, only accounted for 18-82% of the incentives required for farmers to shift from burning to crop residue retention; [2] Northeast China required the lowest incentive (287 CNY ha(-1)), while eastern China required the highest (837 CNY ha(-1)); and [3] the prevailing market prices (1.4-60.2 CNY tCO(2)e(-1)) in China's seven pilot carbon markets seem to be below the required incentives (39.6-189.1 CNY tCO(2)e(-1)). Our study suggests that the Chinese government should increase subsidies or seek innovative incentive schemes to encourage farmers to change their crop residue management practices for global climate change mitigation and health benefits. (C) 2019 Published by Elsevier B.V.
资助项目	National Key Research and Development Program of China[2017YFC0503803] ; National Natural Science Foundation of China[41571192] ; National Natural Science Foundation of China[71773135]
WOS关键词	SOIL CARBON SEQUESTRATION ; ORGANIC-CARBON ; CLIMATE-CHANGE ; STRAW RETURN ; EPIC MODEL ; AGRICULTURAL SOILS ; GAS EMISSIONS ; BLACK CARBON ; TILLAGE ; BIOMASS
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000459163900016
资助机构	National Key Research and Development Program of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/49419]
专题	中国科学院地理科学与资源研究所
通讯作者	Gong, Yazhen; Wang, Shaoqiang
作者单位	1.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 3.Renmin Univ China, Sch Environm & Nat Resources, 59,Zhongguancun St, Beijing 100872, Peoples R China 4.Peking Univ, Sch Adv Agr Sci, Beijing 100871, Peoples R China 5.Peking Univ, Natl Sch Dev, Beijing 100871, Peoples R China 6.IIASA, Ctr Landscape Resilience & Management CLR, Ecosyst Serv & Management Program ESM, Schlosspl 1, A-2361 Laxenburg, Austria 7.Comenius Univ, Dept Soil Sci, Fac Nat Sci, Bratislava 84215, Slovakia
推荐引用方式 GB/T 7714	Chen, Jinghua,Gong, Yazhen,Wang, Shaoqiang,et al. To burn or retain crop residues on croplands? An integrated analysis of crop residue management in China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,662:141-150.
APA	Chen, Jinghua,Gong, Yazhen,Wang, Shaoqiang,Guan, Baozhu,Balkovic, Juraj,&Kraxner, Florian.(2019).To burn or retain crop residues on croplands? An integrated analysis of crop residue management in China.SCIENCE OF THE TOTAL ENVIRONMENT,662,141-150.
MLA	Chen, Jinghua,et al."To burn or retain crop residues on croplands? An integrated analysis of crop residue management in China".SCIENCE OF THE TOTAL ENVIRONMENT 662(2019):141-150.