Shallow groundwater inhibits soil respiration and favors carbon uptake in a wet alpine meadow ecosystem
Shallow groundwater inhibits soil respiration and favors carbon uptake in a wet alpine meadow ecosystem
复制标题
浅层地下水抑制土壤呼吸并有利于潮湿高山草甸生态系统的碳吸收
DOI:
10.22541/au.158880248.84807120
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发表时间:
2020-05
影响因子:
6.2
通讯作者:
Zhaoliang Song
中科院分区:
文献类型:
--
作者:
Shaobo Sun;Tao Che;Pierre Gentine;Qiting Chen;Zhaoliang Song
Wet alpine meadow ecosystems generally act as a significant carbon sink due to their higher rate of photosynthesis than the rate of decomposition. However, it remains unclear whether the low decomposition rate is determined by low temperatures or by nearly-saturated soil conditions. Using five years of measurements from two sites on the Tibetan Plateau with significantly different soil water conditions, we showed that compared to the dry site (which had a deep water table), the much larger carbon sink at the site with a shallow groundwater was mainly caused by the inhibiting effects of the nearly-saturated soil condition on soil respiration rather than by the low temperature. The findings suggested that thawing of frozen soil may partially slow down soil carbon decomposition through increasing soil water. We highlights that a warming-induced shrinking cryosphere may largely affect the carbon dynamics of wet and cold ecosystems through changes in soil hydrology.
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影响因子:
5.2
作者:
Zhang Fangyue;Quan Quan;Ma Fangfang;Tian Dashuan;Zhou Qingping;Niu Shuli
通讯作者:
Niu Shuli
影响因子:
5.4
作者:
M. Walvoord;C. Voss;T. P. Wellman
通讯作者:
M. Walvoord;C. Voss;T. P. Wellman
影响因子:
6.2
作者:
Tao Zhang;Yangjian Zhang;Mingjie Xu;Juntao Zhu;Ning Chen;Yanbin Jiang;Ke Huang;Jiaxing Zu;Yaojie Liu;Guirui Yu
通讯作者:
Guirui Yu
影响因子:
9.8
作者:
Gao, Yanhua;Zhou, Xu;Qu, Ran
通讯作者:
Qu, Ran
DOI:
10.5194/acp-17-5119-2017
发表时间:
2016-12
期刊:
Atmospheric Chemistry and Physics Discussions
影响因子:
--
作者:
Lei Wang;Huizhi Liu;Jihua Sun;Yaping Shao
通讯作者:
Yaping Shao