Different responses of greenhouse gas emissions to straw application at different seasons in Northeast China

Although straw return plays a role in regulating greenhouse gas (GHG) emissions from rice paddy fields, little quantitative information is available on the extent at different periods. In this study, gas samples were collected during the rice growing period from an in-situ experiment comprising thre...

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Main Authors:	Shuang, Liang, Hao, Zhang
Format:	Article
Language:	English
Published:	Penerbit Universiti Kebangsaan Malaysia 2019
Online Access:	http://journalarticle.ukm.my/13728/ http://journalarticle.ukm.my/13728/ http://journalarticle.ukm.my/13728/1/04%20Shuang%20Liang.pdf

id	ukm-13728
recordtype	eprints
spelling	ukm-137282019-11-29T09:11:36Z http://journalarticle.ukm.my/13728/ Different responses of greenhouse gas emissions to straw application at different seasons in Northeast China Shuang, Liang Hao, Zhang Although straw return plays a role in regulating greenhouse gas (GHG) emissions from rice paddy fields, little quantitative information is available on the extent at different periods. In this study, gas samples were collected during the rice growing period from an in-situ experiment comprising three treatments: no straw return (CK); straw return in the autumn (SR-A), and; straw return in the spring (SR-S). The results showed that SR-A and SR-S enhanced CO2 and CH4 emissions, but reduced N2O emissions during the growing period. The total cumulative CO2 emissions over the entire growing period in the SR-S treatment reached 20,383.72 kg ha−1, significantly higher than those of the SR-A and CK treatments. CH4 emissions for all the growing periods were in the order SR-S > SR-A > CK. The CK and SR-S treatments released the most and least N2O during the different periods, respectively. The global warming potential (GWP) of CH4 released by the SR-S, SR-A and CK treatments reached 26,055.37 kg CO2 eq. ha−1, 12,643.27 kg CO2 eq.1, and 9,237.55 kg CO2 eq.1, accounting for 55.80%, 40.35%, and 35.99% of the total GWP, respectively. These results can contribute to management of agricultural GHGs in this region. Penerbit Universiti Kebangsaan Malaysia 2019-07 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/13728/1/04%20Shuang%20Liang.pdf Shuang, Liang and Hao, Zhang (2019) Different responses of greenhouse gas emissions to straw application at different seasons in Northeast China. Sains Malaysiana, 48 (7). pp. 1347-1355. ISSN 0126-6039 http://www.ukm.my/jsm/malay_journals/jilid48bil7_2019/KandunganJilid48Bil7_2019.html
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	Although straw return plays a role in regulating greenhouse gas (GHG) emissions from rice paddy fields, little quantitative information is available on the extent at different periods. In this study, gas samples were collected during the rice growing period from an in-situ experiment comprising three treatments: no straw return (CK); straw return in the autumn (SR-A), and; straw return in the spring (SR-S). The results showed that SR-A and SR-S enhanced CO2 and CH4 emissions, but reduced N2O emissions during the growing period. The total cumulative CO2 emissions over the entire growing period in the SR-S treatment reached 20,383.72 kg ha−1, significantly higher than those of the SR-A and CK treatments. CH4 emissions for all the growing periods were in the order SR-S > SR-A > CK. The CK and SR-S treatments released the most and least N2O during the different periods, respectively. The global warming potential (GWP) of CH4 released by the SR-S, SR-A and CK treatments reached 26,055.37 kg CO2 eq. ha−1, 12,643.27 kg CO2 eq.1, and 9,237.55 kg CO2 eq.1, accounting for 55.80%, 40.35%, and 35.99% of the total GWP, respectively. These results can contribute to management of agricultural GHGs in this region.
format	Article
author	Shuang, Liang Hao, Zhang
spellingShingle	Shuang, Liang Hao, Zhang Different responses of greenhouse gas emissions to straw application at different seasons in Northeast China
author_facet	Shuang, Liang Hao, Zhang
author_sort	Shuang, Liang
title	Different responses of greenhouse gas emissions to straw application at different seasons in Northeast China
title_short	Different responses of greenhouse gas emissions to straw application at different seasons in Northeast China
title_full	Different responses of greenhouse gas emissions to straw application at different seasons in Northeast China
title_fullStr	Different responses of greenhouse gas emissions to straw application at different seasons in Northeast China
title_full_unstemmed	Different responses of greenhouse gas emissions to straw application at different seasons in Northeast China
title_sort	different responses of greenhouse gas emissions to straw application at different seasons in northeast china
publisher	Penerbit Universiti Kebangsaan Malaysia
publishDate	2019
url	http://journalarticle.ukm.my/13728/ http://journalarticle.ukm.my/13728/ http://journalarticle.ukm.my/13728/1/04%20Shuang%20Liang.pdf
first_indexed	2023-09-18T20:05:30Z
last_indexed	2023-09-18T20:05:30Z
_version_	1777407131062894592

Different responses of greenhouse gas emissions to straw application at different seasons in Northeast China

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