Urbanization degree rather than methanotrophic abundance decreases soil CH4uptake

论文标题：Urbanization degree rather than methanotrophic abundance decreases soil CH4uptake
论文作者：Mingyue Zhang, Shimei Weng, Hailun Gao, Lan Liu, Junxiang Li, Xiaoqi Zhou*

文章简介：
Urbanization has been increasing worldwide, which can greatly influence ecosystem functions such as soil methane (CH4) uptake. However, little information is available for quantifying the effects of urbanization on soil CH4 uptake and the underlying microbial mechanisms. By conducting a meta-analysis of soil CH4 uptake under urbanization worldwide in combination with measurements of potential soil CH4 uptake from 134 samples along an urbanization gradient across Shanghai, China, we found that urbanization significantly decreased soil CH4 uptake with greater inhibition under higher urbanization levels. Urbanization degree, index of urbanization levels, explained large variations of soil CH4 uptake, and urbanization decoupled the relationships between methanotrophic abundance and soil CH4 uptake, which was often neglected in previous research. To our knowledge, this is the first study to quantify the effects of urbanization degree on soil CH4 uptake, which need to be incorporated into Earth system models for estimating the global CH4 budget more accurately.

全文链接：https://doi.org/10.1016/j.geoderma.2021.115368
《Geoderma》期刊是土壤科学领域的顶级期刊，影响因子为6.114。我院博士毕业生张明月为第一作者，周小奇教授为通讯作者。