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Increased global warming potential during freeze-thaw cycle is primarily due to the contribution of N2O rather than CO2

文献类型：期刊论文

作者Zhao, Chunhong6; Liu, Ziping3; Wang, Huimin4,5; Dai, Xiaoqin4,5; Meng, Shengwang4,5; Fu, Xiaoli4,5; Jiang, Qunou2; Lv, Wenjun1; Chen, Jiancheng3; Gao, Decai4,5
刊名SCIENCE OF THE TOTAL ENVIRONMENT
出版日期2024-12-01
卷号954页码:176232
关键词Freeze-thaw cycle Global warming potential N2O CO2 Microbial biomass Meta-analysis
DOI10.1016/j.scitotenv.2024.176232
产权排序2
英文摘要While freeze-thaw cycle (FTC) can influence greenhouse gas emissions, the specific greenhouse gas that responds most strongly to FTC, as well as the underlying mechanisms, remain unclear. Here, we conducted a meta-analysis to explore the responses of global warming potential (GWP) and the fluxes of CO2 and N2O to FTC. Our results showed that FTC treatment significantly increased GWP, N2O flux, cumulative GWP, and cumulative N2O emissions by 23.1 %, 53.2 %, 14.5 %, and 164.6 %, respectively, but did not affect CO2 flux, indicating that the enhanced GWP during the FTC period may be primarily due to the contribution of N2O flux rather than CO2 flux. The responses of GWP (+68.6 %), CO2 2 (+21.0 %), and N2O 2 O fluxes (+136.3 %) in croplands was higher than those in other ecosystems, exhibiting a strong dependence on ecosystem types. The effect size of FTC treatment on greenhouse gas emissions escalated with decreasing freezing temperature and diminished with increasing FTC frequency. Moreover, mean annual temperature (MAT) and FTC patterns were key factors influencing GWP during the FTC period. These findings provide critical insights into the variations in greenhouse gas emissions due to FTC and its influencing factors, allowing for more accurate predictions of the future impact of global climate change on GWP.
WOS关键词NITROUS-OXIDE EMISSIONS ; DISSOLVED ORGANIC-CARBON ; MICROBIAL ACTIVITY ; FOREST ECOSYSTEMS ; SOIL FREEZE ; SNOW DEPTH ; RESPONSES ; DENITRIFICATION ; IMPACT ; RATES
WOS研究方向Environmental Sciences & Ecology
WOS记录号WOS:001332265000001
源URL[http://ir.igsnrr.ac.cn/handle/311030/208231]  
专题千烟洲站森林生态系统研究中心_外文论文
通讯作者Gao, Decai
作者单位1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing, Peoples R China
2.Beijing Forestry Univ, Sch Soil & Water Conservat, Beijing, Peoples R China
3.Northeast Normal Univ, Key Lab Geog Proc & Ecol Secur Changbai Mt, Minist Educ, Changchun, Peoples R China
4.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China
5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Qianyanzhou Ecol Res Stn, Beijing 100101, Peoples R China
6.Beijing City Univ, Sch Urban Construct, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Zhao, Chunhong,Liu, Ziping,Wang, Huimin,et al. Increased global warming potential during freeze-thaw cycle is primarily due to the contribution of N2O rather than CO2[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2024,954:176232.
APA Zhao, Chunhong.,Liu, Ziping.,Wang, Huimin.,Dai, Xiaoqin.,Meng, Shengwang.,...&Gao, Decai.(2024).Increased global warming potential during freeze-thaw cycle is primarily due to the contribution of N2O rather than CO2.SCIENCE OF THE TOTAL ENVIRONMENT,954,176232.
MLA Zhao, Chunhong,et al."Increased global warming potential during freeze-thaw cycle is primarily due to the contribution of N2O rather than CO2".SCIENCE OF THE TOTAL ENVIRONMENT 954(2024):176232.

入库方式： OAI收割

来源：地理科学与资源研究所

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