Boreal forest soil CO2 and CH4 fluxes following fire and their responses to experimental warming and drying
Song, Xiaoyan1,2; Wang, Genxu1; Hu, Zhaoyong1; Ran, Fei1; Chen, Xiaopeng1,2
2018-12-10
发表期刊SCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
卷号644页码:862-872
摘要Boreal forests store large amounts of organic carbon and are susceptible to climate changes, particularly rising temperature, changed soil water and increased fire frequency. The young post-fire ecosystems might occupy larger proportions of the boreal forests region with the expected increases in fire frequency in the future and change the carbon (C) balance of this region. However, it is unclear how soil C fluxes in the post-fire boreal forest response to the climate changes. Therefore, a two-year field experiment was conducted in a boreal forest to investigate the effects of fire on the soil C (CO2 and CH4) fluxes and the responses of these fluxes to simulated warmer and drier climate conditions. The results showed that the boreal forest recovered form wildfire 7-8 years had higher soil CO2 flux than the mature forest. Furthermore, the treatments of warming, drying and the combination of warming and drying increased growing season cumulative soil CO2 flux in the post-fire forest by 15.8%, 20.4% and 34.2%, respectively. However, the boreal forest soil changed from a weak CH4 source to a weak CH4 sink after fire disturbance. Although CH4 absorption increased by warming and drying treatments, the interaction of warming and drying led to a decrease in soil CH4 uptake. The results indicated that the postfire soil showed CO2 and CH4 fluxes with a greater global warming potential than before burning and that the global warming potential of the soil gas fluxes further increased by warming and drying. The predictive power of models of C cycle-climate feedbacks could be increased by incorporating the distinct ecosystem following fire with permafrost degradation and climate change across the boreal zone. (C) 2018 Elsevier B.V. All rights reserved.
关键词Soil carbon emissions Simulated warming Drying Permafrost Post-fire ecosystem
DOI10.1016/j.scitotenv.2018.07.014
关键词[WOS]PERMAFROST CARBON ; CLIMATE-CHANGE ; NITROGEN-FERTILIZATION ; TEMPERATURE-DEPENDENCE ; MICROBIAL BIOMASS ; NORTHEAST CHINA ; METHANE ; TUNDRA ; RESPIRATION ; ALASKA
语种英语
资助项目National Key Basic Research Program of China[2013CBA01807] ; National Natural Science Foundation of China[91547203] ; National Natural Science Foundation of China[41271224] ; National Natural Science Foundation of China[41671206]
WOS研究方向Environmental Sciences & Ecology
WOS类目Environmental Sciences
WOS记录号WOS:000445164000090
项目资助者National Key Basic Research Program of China ; National Natural Science Foundation of China
出版者ELSEVIER SCIENCE BV
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.imde.ac.cn/handle/131551/23432
专题山地表生过程与生态调控重点实验室
通讯作者Wang, Genxu
作者单位1.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
第一作者单位中国科学院水利部成都山地灾害与环境研究所
通讯作者单位中国科学院水利部成都山地灾害与环境研究所
推荐引用方式
GB/T 7714
Song, Xiaoyan,Wang, Genxu,Hu, Zhaoyong,et al. Boreal forest soil CO2 and CH4 fluxes following fire and their responses to experimental warming and drying[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2018,644:862-872.
APA Song, Xiaoyan,Wang, Genxu,Hu, Zhaoyong,Ran, Fei,&Chen, Xiaopeng.(2018).Boreal forest soil CO2 and CH4 fluxes following fire and their responses to experimental warming and drying.SCIENCE OF THE TOTAL ENVIRONMENT,644,862-872.
MLA Song, Xiaoyan,et al."Boreal forest soil CO2 and CH4 fluxes following fire and their responses to experimental warming and drying".SCIENCE OF THE TOTAL ENVIRONMENT 644(2018):862-872.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Boreal forest soil C(16701KB)期刊论文出版稿开放获取CC BY-NC-SA浏览 请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Song, Xiaoyan]的文章
[Wang, Genxu]的文章
[Hu, Zhaoyong]的文章
百度学术
百度学术中相似的文章
[Song, Xiaoyan]的文章
[Wang, Genxu]的文章
[Hu, Zhaoyong]的文章
必应学术
必应学术中相似的文章
[Song, Xiaoyan]的文章
[Wang, Genxu]的文章
[Hu, Zhaoyong]的文章
相关权益政策
暂无数据
收藏/分享
文件名: Boreal forest soil CO2 and CH4 fluxes following fire and their responses to experimental warming and drying.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。