文献类型：期刊文献

英文题名：Draining Effects on Recent Accumulation Rates of C and N in Zoige Alpine Peatland in the Tibetan Plateau

作者：Li, Chunyi[1] Huang, Yilan[1] Guo, Huanhuan[2] Cui, Lijuan[1] Li, Wei[1]

第一作者：李春义

通信作者：Cui, LJ[1]

机构：[1]Chinese Acad Forestry, Inst Wetland Res, Beijing Key Lab Wetland Serv & Restorat, Beijing 100091, Peoples R China;[2]Beijing Forestry Univ, Coll Forestry, Beijing 100083, Peoples R China

年份：2018

卷号：10

期号：5

外文期刊名：WATER

收录：;EI(收录号：20182005190007);Scopus(收录号：2-s2.0-85046636167);WOS:【SCI-EXPANDED(收录号:WOS:000435196700042)】；

基金：This research was supported by the Fundamental Research Funds for the Central Non-Profit Research Institution of Chinese Academy of Forestry (CAFYBB2014QA030) and (CAFINT2015C12).

语种：英文

外文关键词：peatlands; peat accumulation; RERCA; RERNA; water table level; drainage

摘要：Peatlands play an essential role in the global carbon (C) and nitrogen (N) cycling. In order to ascertain the draining effects on recent accumulation rates of C (RERCA) and N (RERNA) in the Zoige peatland in the eastern Qinghai-Tibet Plateau, the core samples of peat growth, C and N accumulation for both natural and drained peatlands were measured using Pb-210 and Cs-137 dating methods. As a result, RERCA and RERNA showed an increasing trend from the bottom to the surface of the peatland, which was in accordance with the peat accumulation rates. However, the average RERCA in permanently flooded and seasonally flooded peatlands were 1.5-2.5 times that of drainage peatlands, and the average of RERNA were 1.2-1.7 times. Our findings indicate that the Zoige peatland is still in the stage of peat development with a large carbon sequestration capacity, and drainage from human activities leads to the decreasing of RERCA and RERNA, which will contribute to the selection of the effective ways to slow down the anthropogenic effects on the degradation of the Zoige peatland.