全球智库信息集成服务系统(G2TT): To burn or retain crop residues on croplands? An integrated analysis of crop residue management in China.

G2TT

来源类型	Article
规范类型	其他
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 J; Gong Y; Wang S; Guan B; Kraxner F
发表日期	2019
出处	Science of the Total Environment 662: 141-150
出版年	2019
语种	英语
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 (Ahmed et al., 2015) 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 (Auffhammer and Gong, 2015) retaining crop residues would have avoided about 149.9 Tg of CO2 emission per year. Economic analyses showed that (Ahmed et al., 2015) 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; (Auffhammer and Gong, 2015) Northeast China required the lowest incentive (287 CNY ha−1), while eastern China required the highest (837 CNY ha−1); and (Balkovič et al., 2014) the prevailing market prices (1.4–60.2 CNY tCO2e−1) in China's seven pilot carbon markets seem to be below the required incentives (39.6–189.1 CNY tCO2e−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.
主题	Ecosystems Services and Management (ESM)
关键词	Crop residue management Soil carbon Carbon emissions Economic analysis China
URL	http://pure.iiasa.ac.at/id/eprint/15699/
来源智库	International Institute for Applied Systems Analysis (Austria)
引用统计
资源类型	智库出版物
条目标识符	http://119.78.100.153/handle/2XGU8XDN/131689
推荐引用方式 GB/T 7714	Chen J,Gong Y,Wang S,et al. To burn or retain crop residues on croplands? An integrated analysis of crop residue management in China.. 2019.