文献类型：期刊文献

英文题名：Methane emissions from natural and drained peatlands in the Zoige, eastern Qinghai-Tibet Plateau

作者：Zhou, Wenchang[1,2] Cui, Lijuan[1] Wang, Yifei[1] Li, Wei[1]

第一作者：Zhou, Wenchang

通信作者：Cui, LJ[1]

机构：[1]Chinese Acad Forestry, Beijing Key Lab Wetland Serv & Restorat, Inst Wetland Res, 1 Dongxiaofu, Beijing 100091, Peoples R China;[2]Hubei Acad Forestry, 39 Fenglin Rd Senlin Ave, Wuhan 430075, Peoples R China

年份：2017

卷号：28

期号：3

起止页码：539-547

外文期刊名：JOURNAL OF FORESTRY RESEARCH

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000399164900012)】；

基金：This study was financially supported by Grant Projects on Clean Development Mechanism in China (No. 2012076) and the special basic scientific research expenses from Research Institute of Forestry New Technology, Chinese Academy of Forestry (No. CAFINT2014K06).

语种：英文

外文关键词：Drainage; CH4 emission; Peatland; Zoige Plateau

摘要：Peatlands are one of the major natural sources of methane (CH4), but the level of CH4 efflux is uncertain, especially in alpine peatlands. In this study, CH4 emission fluxes from natural and drained peatlands on the Qinghai-Tibet Plateau, southwest China, were measured from June to October in 2013 using the opaque static chamber technique and the Fast Greenhouse Gas Analyzer (DLT-100, Los Gatos Research Corp.). CH4 emission fluxes ranged from 2.07 to 56.33 mg m(-2) h(-1) in natural peatlands and from 0.02 to 0.42 mg m(-2) h(-1) in drained peatlands. Mean CH4 emission flux was 19.13 mg m(-2) h(-1) in natural peatlands and 0.14 mg m(-2) h(-1) in drained peatlands. These results showed that drainage led to a significant decrease in CH4 emissions. CH4 emission fluxes for all sampling plots were significantly correlated with variation in water table depth for linear (R (2) = 0.453, P < 0.01) and exponential functions (R (2) = 0.429, P < 0.01).