Differences of soil CO2 flux in two contrasting subalpine ecosystems on the eastern edge of the Qinghai-Tibetan Plateau: A four-year study
Min Duan1; Andi Li2; Yanhong Wu1; Zuoping Zhao3; Changhui Peng1; Thomas H. DeLucad4; Shouqin Sun2
2018
发表期刊Atmospheric Environment
ISSN1352-2310
卷号198页码:166-174
文章类型Article
产权排序2
摘要Alpine and subalpine ecosystems on Qinghai-Tibetan Plateau are rich in soil organic carbon and are among the most sensitive regions to climate change, while little is known about the dynamics of soil carbon dioxide (CO2) in alpine/subalpine ecosystems except for the grassland on the plateau. In this study, the monthly and inter-annual variations in soil CO2 emission from a subalpine coniferous forest and a subalpine shrubland ecosystem on the eastern edge of the Qinghai-Tibetan Plateau were investigated from 2012 to 2015 using the opaque steady-state chamber method. Soil CO2 flux rate during the growing season ranged from 153.3 to 683.6 mgm−2 h−1 in the coniferous forest, being twice of that (76.6–347.3 mgm−2 h−1) in the shrubland, due to the elevation-induced differences in soil temperature and water content and the vegetation-induced differences in soil carbon and nitrogen pools. Both ecosystems showed large monthly variations in soil CO2 flux rate, while relative to the coniferous forest, the shrubland had a less inter-annual variation in soil CO2 emission. The two ecosystems had the same temperature sensitivity of soil CO2 emission, which suggests that they will respond similarly to global warming concerning soil CO2 flux rate. The results highlight the importance of soil CO2 emission in subalpine forest and shrubland ecosystems, which can be helpful to reduce the uncertainty of regional estimates of carbon budget in subalpine regions under global warming.
关键词Coniferous forest Greenhouse gas emission High elevation Shrubland Subalpine region Temperature sensitivity
DOI10.1016/j.atmosenv.2018.10.067
收录类别SCI
语种英语
期刊分区2区
引用统计
文献类型期刊论文
条目标识符http://ir.imde.ac.cn/handle/131551/24292
专题山地表生过程与生态调控重点实验室
通讯作者Shouqin Sun
作者单位1.Centre for Ecological Forecasting and Global Change, College of Forestry, Northwest A&F University, Yangling, 712100, China;
2.Key Lboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences;
3.College of Chemical and Environment Science, Shaanxi University of Technology, Hanzhong, 723000, China;
4.College of Forestry and Conservation, University of Montana, Missoula, MT, 59812, USA
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
Min Duan,Andi Li,Yanhong Wu,et al. Differences of soil CO2 flux in two contrasting subalpine ecosystems on the eastern edge of the Qinghai-Tibetan Plateau: A four-year study[J]. Atmospheric Environment,2018,198:166-174.
APA Min Duan.,Andi Li.,Yanhong Wu.,Zuoping Zhao.,Changhui Peng.,...&Shouqin Sun.(2018).Differences of soil CO2 flux in two contrasting subalpine ecosystems on the eastern edge of the Qinghai-Tibetan Plateau: A four-year study.Atmospheric Environment,198,166-174.
MLA Min Duan,et al."Differences of soil CO2 flux in two contrasting subalpine ecosystems on the eastern edge of the Qinghai-Tibetan Plateau: A four-year study".Atmospheric Environment 198(2018):166-174.
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
Atmospheric environm(2359KB)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
[Min Duan]的文章
[Andi Li]的文章
[Yanhong Wu]的文章
百度学术
百度学术中相似的文章
[Min Duan]的文章
[Andi Li]的文章
[Yanhong Wu]的文章
必应学术
必应学术中相似的文章
[Min Duan]的文章
[Andi Li]的文章
[Yanhong Wu]的文章
相关权益政策
暂无数据
收藏/分享
文件名: Atmospheric environment.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。