Soil CO2 emission and carbon budget of a wheat/maize annual double-cropped system in response to tillage and residue management in the North China Plain
Wu, LF; Li, BB; Qin, Y; Gregorich, E
2017
Source PublicationINTERNATIONAL JOURNAL OF AGRICULTURAL SUSTAINABILITY
ISSN1473-5903
Volume15Issue:3Pages:253-263
AbstractTo investigate the impacts of tillage and crop residue managements on soil CO2 emission and C budget in a wheat (Triticum aestivum L.)/maize (Zea mays L.) double-cropped system in the North China Plain (NCP), a field experiment was conducted consisting of four treatments: tillage with crop residues retention (CT+), tillage with crop residues removal (CT-), no-till with crop residues retention (NT+), and no-till with crop residues removal (NT-). Daily soil CO2 fluxes changed with crop growing stage and peaked during the most vigorous growth of period, fluxes in maize season were higher than those in wheat season. Compared to the tilled soils, cumulative CO2 emissions were significantly lower under no-till treatments. The largest cumulative CO2 emission occurred under CT+ (65g CO2-C m(-2) y(-1)) and the smallest was under NT+ (39g CO2-C m(-2) y(-1)). After 5 years of the experiment, soil organic carbon (SOC) sequestration were greater with crop residues retention (CT+ and NT+) than with crop residues removal (CT- and NT-), the maximum SOC stock was in NT+ (5940g C m(-2)) while the minimum was in CT- (3635g C m(-2)). NT+ could help to mitigate CO2 emission in the annual wheat/maize double-cropping system of the area.
SubtypeJournal
KeywordCO2 emission carbon budget tillage crop residues management wheat maize double-cropping system
Subject AreaAgriculture ; Science & Technology - Other Topics
WOS Subject ExtendedAgriculture, Multidisciplinary ; GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY
WOS KeywordGREENHOUSE-GAS EMISSIONS ; ORGANIC-CARBON ; SEQUESTRATION ; DYNAMICS ; AGROECOSYSTEMS ; RESPIRATION
Indexed BySCI
Language英语
WOS IDWOS:000401522600003
PublisherTAYLOR & FRANCIS LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/44123
Collection生态系统网络观测与模拟院重点实验室_生态网络实验室
Recommended Citation
GB/T 7714
Wu, LF,Li, BB,Qin, Y,et al. Soil CO2 emission and carbon budget of a wheat/maize annual double-cropped system in response to tillage and residue management in the North China Plain[J]. INTERNATIONAL JOURNAL OF AGRICULTURAL SUSTAINABILITY,2017,15(3):253-263.
APA Wu, LF,Li, BB,Qin, Y,&Gregorich, E.(2017).Soil CO2 emission and carbon budget of a wheat/maize annual double-cropped system in response to tillage and residue management in the North China Plain.INTERNATIONAL JOURNAL OF AGRICULTURAL SUSTAINABILITY,15(3),253-263.
MLA Wu, LF,et al."Soil CO2 emission and carbon budget of a wheat/maize annual double-cropped system in response to tillage and residue management in the North China Plain".INTERNATIONAL JOURNAL OF AGRICULTURAL SUSTAINABILITY 15.3(2017):253-263.
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