spatialanalysisofthesoilcarbonsequestrationpotentialofcropresiduereturninchinabasedonmodelsimulation

IGSNRR OpenIR

	spatialanalysisofthesoilcarbonsequestrationpotentialofcropresiduereturninchinabasedonmodelsimulation
	Chen Jinghua 1; Wang Shaoqiang1 ; Kraxner Florian 2; Balkovic Juraj 2; Xu Xiyan 3; Sun Leigang 4
	2019
Source Publication	journalofresourcesandecology
ISSN	1674-764X
Volume	10 Issue:2 Pages:184
Abstract	Crop-residue return is a recommended practice for soil and nutrient management and is important in soil organic carbon (SOC) sequestration and CO_2 mitigation.We applied a process-based Environmental Policy Integrated Climate (EPIC) model to simulate the spatial pattern of topsoil organic carbon changes from 2001 to 2010 under 4 crop-residue return scenarios in China.The carbon loss (28.89 Tg yr~(-1)) with all crop-residue removal (CR0%) was partly reduced by 22.38 Tg C yr~(-1) under the status quo CR30% (30% of crop-residue return).The topsoil in cropland of China would become a net carbon sink if the crop-residue return rate was increased from 30% to 50%,or even 75%.The national SOC sequestration potential of cropland was estimated to be 25.53 Tg C yr~(-1) in CR50% and 52.85 Tg C yr~(-1) in CR75%,but with high spatial variability across regions.The highest rate of SOC sequestration potential in density occurred in Northwest and North China while the lowest was in East China.Croplands in North China tended to have stronger regional SOC sequestration potential in storage.During the decade,the reduced CO_2 emissions from enhanced topsoil carbon in CR50% and CR75% were equivalent to 1.4% and 2.9% of the total CO_2 emissions from fossil fuels and cement production in China,respectively.In conclusion,we recommend encouraging farmers to return crop-residue instead of burning in order to improve soil properties and alleviate atmospheric CO_2 rises,especially in North China.
Language	英语
Document Type	期刊论文
Identifier	http://ir.igsnrr.ac.cn/handle/311030/120333
Collection	中国科学院地理科学与资源研究所
Affiliation	1.中国科学院地理科学与资源研究所 2.Ecosystems Services and Management Program,International Institute for Applied Systems Analysis 3.中国科学院大气物理研究所 4.Institute of Geographical Sciences,Hebei Academy of Sciences
First Author Affilication	中国科学院地理科学与资源研究所
Recommended Citation GB/T 7714	Chen Jinghua,Wang Shaoqiang,Kraxner Florian,et al. spatialanalysisofthesoilcarbonsequestrationpotentialofcropresiduereturninchinabasedonmodelsimulation[J]. journalofresourcesandecology,2019,10(2):184.
APA	Chen Jinghua,Wang Shaoqiang,Kraxner Florian,Balkovic Juraj,Xu Xiyan,&Sun Leigang.(2019).spatialanalysisofthesoilcarbonsequestrationpotentialofcropresiduereturninchinabasedonmodelsimulation.journalofresourcesandecology,10(2),184.
MLA	Chen Jinghua,et al."spatialanalysisofthesoilcarbonsequestrationpotentialofcropresiduereturninchinabasedonmodelsimulation".journalofresourcesandecology 10.2(2019):184.

Files in This Item:
There are no files associated with this item.

If you have any objections to this item, please fill out the form below and the administrator will contact you as soon as possible.
Content:
Email：	*
Institution:
Verification Code:	Refresh

Any comments and suggestions are welcomed.
Title:	*
Content:
Email：	*
Verification Code:	Refresh

中国科学院地理科学与资源研究所机构知识库