IGSNRR OpenIR
Modeling the effects of farming management practices on soil organic carbon stock at a county-regional scale
Chen, Zhao6; Wang, Jing2; Deng, Nanrong1; Lv, Changhe3; Wang, Qi1; Yu, Haibin4; Li, Wangjun5
2018
Source PublicationCATENA
ISSN0341-8162
Volume160Pages:76-89
Corresponding AuthorLv, Changhe(shuangshi1010@126.com)
AbstractFarming management practices are paramount for soil organic carbon (SOC) sequestration in carbon cycling at different scales. However, due to a lack of detailed data, estimating the impacts of different farming management alternatives on overall SOC stock remains inadequately quantified, especially at the county-regional scale. Here, an agricultural county-region, Yucheng County, which covers an area of 988.5 km(2) in the North China Plain, was selected as a case to estimate the impacts of different farming management practices on SOC stock using explicit spatial information and the DeNitrification-DeComposition (DNDC) model. We constructed a database by creating 524 polygon-based homogeneous modeling units using climate, soil and farming management information, which were linked to the DNDC to support the county-regional-scale simulations. Four experiments lasting from 2003 or 2004 to 2010 and 247 soil samples collected in 2009 from a soil depth of 0-20 cm across the study area were used for field- and regional-scale model validation, respectively. Validation results indicated that the DNDC model was acceptable for modeling SOC stock in Yucheng County. Seven farming management scenarios were designed for predicting the SOC stock from 1980 to 2020. Simulation results indicated that the changes in fanning management practices had strong effects on carbon sequestration, with the maximum SOC stock ranging from 3.99 to 6.34 Mt. C across the county. The simulation results improved our understanding of the comprehensive impacts of management practices on the soil C pool when upscaling to larger regional or national scales.
KeywordDNDC Soil organic carbon Validation Simulation Farming management scenario
DOI10.1016/j.catena.2017.09.006
WOS KeywordNORTH CHINA PLAIN ; GREENHOUSE-GAS EMISSIONS ; LONG-TERM EXPERIMENTS ; PADDY SOILS ; DNDC MODEL ; LAND-USE ; CLIMATE-CHANGE ; AGRICULTURAL MANAGEMENT ; N2O EMISSIONS ; DYNAMICS
Indexed BySCI
Language英语
Funding ProjectNational Key Basic Research Program of China[2012CB955304] ; Science Foundation for Young Scientists of Guangdong Academy of Sciences[qnjj201305] ; Project of Science and Technology Innovation Platform of Guangdong Province[2015B070701017]
Funding OrganizationNational Key Basic Research Program of China ; Science Foundation for Young Scientists of Guangdong Academy of Sciences ; Project of Science and Technology Innovation Platform of Guangdong Province
WOS Research AreaGeology ; Agriculture ; Water Resources
WOS SubjectGeosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS IDWOS:000414880400009
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/61165
Collection中国科学院地理科学与资源研究所
Corresponding AuthorLv, Changhe
Affiliation1.Guangdong Inst Ecoenvironm & Soil Sci, Guangdong Key Lab Agr Environm Pollut Integrated, Guangzhou 510650, Guangdong, Peoples R China
2.Sun Yat Sen Univ, Xinhua Coll, Dept Biomed Engn, Guangzhou 510520, Guangdong, Peoples R China
3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Jia 11,Datun Rd, Beijing 100101, Peoples R China
4.Sun Yat Sen Univ, Sch Life Sci, Guangzhou 510275, Guangdong, Peoples R China
5.Suzhou Univ Sci & Technol, Sch Environm Sci & Engn, Suzhou 215009, Peoples R China
6.Guangdong Inst Ecoenvironm Sci & Technol, Guangdong Key Lab Agr Environm Pollut Integrated, Guangzhou 510650, Guangdong, Peoples R China
Recommended Citation
GB/T 7714
Chen, Zhao,Wang, Jing,Deng, Nanrong,et al. Modeling the effects of farming management practices on soil organic carbon stock at a county-regional scale[J]. CATENA,2018,160:76-89.
APA Chen, Zhao.,Wang, Jing.,Deng, Nanrong.,Lv, Changhe.,Wang, Qi.,...&Li, Wangjun.(2018).Modeling the effects of farming management practices on soil organic carbon stock at a county-regional scale.CATENA,160,76-89.
MLA Chen, Zhao,et al."Modeling the effects of farming management practices on soil organic carbon stock at a county-regional scale".CATENA 160(2018):76-89.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Chen, Zhao]'s Articles
[Wang, Jing]'s Articles
[Deng, Nanrong]'s Articles
Baidu academic
Similar articles in Baidu academic
[Chen, Zhao]'s Articles
[Wang, Jing]'s Articles
[Deng, Nanrong]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Chen, Zhao]'s Articles
[Wang, Jing]'s Articles
[Deng, Nanrong]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.