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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/13728/1/04%20Shuang%20Liang.pdf
http://journalarticle.ukm.my/13728/
http://www.ukm.my/jsm/malay_journals/jilid48bil7_2019/KandunganJilid48Bil7_2019.html
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spelling my-ukm.journal.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
institution Universiti Kebangsaan Malaysia
building Tun Sri Lanang Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Kebangsaan Malaysia
content_source UKM Journal Article Repository
url_provider http://journalarticle.ukm.my/
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/13728/1/04%20Shuang%20Liang.pdf
http://journalarticle.ukm.my/13728/
http://www.ukm.my/jsm/malay_journals/jilid48bil7_2019/KandunganJilid48Bil7_2019.html
_version_ 1651868056395186176
score 13.211869

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