Discrepant responses of methane emissions to additions with different organic compound classes of rice straw in paddy soil

doi:10.1016/j.scitotenv.2018.02.230

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	Discrepant responses of methane emissions to additions with different organic compound classes of rice straw in paddy soil
	Tan, Wenbing 4; Yu, Hanxia 5; Huang, Caihong 4; Li, Dan 4; Zhang, Hui 4; Jia, Yufu 1; Wang, Guoan 2; Xi, Beidou 4
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2018
卷号	630 页码:141-145
关键词	Straw incorporation Methane emissions Organic compound classes Paddy soil
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2018.02.230
文献子类	Article
英文摘要	Crop straw incorporation has become a prevailing agricultural practice that guarantees the food production and security. There is a significant body of work on the effects of straw incorporation on the methane (CH4) emissions in paddy fields. However, it is unclear whether there are diverse links between CH4 emission dynamics and incorporations of different organic compound classes of straw to paddy fields. In this study, soil incubations were conducted to assess the respective effect of incorporations of hydrolysable amino acid (HAA), dilute-acid extractable carbohydrate (DAC), lipid and acid-insoluble organic matter (ATOM) fractions of rice straw on the CH4 emission in paddy soil. It is revealed that incorporations of HAA and DAC fractions exert the greatest intensities to stimulate the CH4 emissions, which mainly takes place in the early period of incubation; on contrary, the incorporation of lipid fraction exerts the lowest intensity and mainly takes place in the late period. The pattern of CH4 emission after incorporation of ATOM fraction occurs peaks both in the early and late periods of incubation. Our findings highlight that the time of occurrence and intensity of effects of rice straw incorporation on CH4 emissions vary significantly depending on the different organic compound classes of rice straw, which may be key to proposing a promising management strategy for mitigating CH4 emissions in paddy fields in the context of straw incorporation. (C) 2013 Elsevier B.V. All rights reserved.
学科主题	Environmental Sciences
电子版国际标准刊号	1879-1026
出版地	AMSTERDAM
WOS关键词	GREENHOUSE-GAS EMISSIONS ; NITROUS-OXIDE EMISSIONS ; TILLAGE ; MATTER ; YIELD ; MECHANISMS ; MITIGATION ; COMMUNITY ; OXIDATION ; DYNAMICS
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000432467700015
资助机构	National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41501242, 51325804, 51508540]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/20671]
专题	植被与环境变化国家重点实验室
作者单位	1.South China Normal Univ, Sch Life Sci, Guangzhou 510631, Guangdong, Peoples R China 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 3.China Agr Univ, Coll Resources & Environm Sci, Beijing 100193, Peoples R China 4.Chinese Res Inst Environm Sci, State Key Lab Environm Criteria & Risk Assessment, Beijing 100012, Peoples R China 5.Chinese Res Inst Environm Sci, State Environm Protect Key Lab Simulat & Control, Beijing 100012, Peoples R China
推荐引用方式 GB/T 7714	Tan, Wenbing,Yu, Hanxia,Huang, Caihong,et al. Discrepant responses of methane emissions to additions with different organic compound classes of rice straw in paddy soil[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2018,630:141-145.
APA	Tan, Wenbing.,Yu, Hanxia.,Huang, Caihong.,Li, Dan.,Zhang, Hui.,...&Xi, Beidou.(2018).Discrepant responses of methane emissions to additions with different organic compound classes of rice straw in paddy soil.SCIENCE OF THE TOTAL ENVIRONMENT,630,141-145.
MLA	Tan, Wenbing,et al."Discrepant responses of methane emissions to additions with different organic compound classes of rice straw in paddy soil".SCIENCE OF THE TOTAL ENVIRONMENT 630(2018):141-145.