@article{c9ed95a075cb44419f326f5cf0d750a3,
title = "Differential responses of carbon-degrading enzyme activities to warming: Implications for soil respiration",
abstract = "Extracellular enzymes catalyze rate-limiting steps in soil organic matter decomposition, and their activities (EEAs) play a key role in determining soil respiration (SR). Both EEAs and SR are highly sensitive to temperature, but their responses to climate warming remain poorly understood. Here, we present a meta-analysis on the response of soil cellulase and ligninase activities and SR to warming, synthesizing data from 56 studies. We found that warming significantly enhanced ligninase activity by 21.4% but had no effect on cellulase activity. Increases in ligninase activity were positively correlated with changes in SR, while no such relationship was found for cellulase. The warming response of ligninase activity was more closely related to the responses of SR than a wide range of environmental and experimental methodological factors. Furthermore, warming effects on ligninase activity increased with experiment duration. These results suggest that soil microorganisms sustain long-term increases in SR with warming by gradually increasing the degradation of the recalcitrant carbon pool.",
keywords = "cellulase activity, decomposition, extracellular enzyme activity, global warming, ligninase activity, recalcitrant carbon pool, soil microorganisms, soil respiration",
author = "Ji Chen and Yiqi Luo and Pablo Garc{\'i}a-Palacios and Junji Cao and Marina Dacal and Xuhui Zhou and Jianwei Li and Jianyang Xia and Shuli Niu and Huiyi Yang and Shelby Shelton and Wei Guo and {van Groenigen}, {Kees Jan}",
note = "Funding Information: First, we would like to thank the authors whose work is included in this meta‐analysis, especially those who supplied us with additional data. Second, we would like to thank Robert Sinsabaugh and three anonymous reviewers for their valuable comments on an earlier version of this manuscript. This study was supported by the National Natural Science Foundation of China (41701292), China Postdoctoral Science Foundation (2017M610647, 2018T111091), the Natural Science Basic Research Plan in Shaanxi Province (2017JQ3041), the State Key Laboratory of Loess and Quaternary Geology (SKLLQG1602), the Key Laboratory of Aerosol Chemistry and Physics (KLACP‐17‐02), Institute of Earth Environment, and Chinese Academy of Sciences. Contributions from Dr. Luo's Eco‐lab to this study were financially supported by US Department of Energy grant DE‐SC00114085 and US National Science Foundation grants EF 1137293 and OIA‐1301789. This work was also supported by NSFC‐Yunnan United Fund (U1302267) and the National Science Fund for Distinguished Young Scholars (31325005). Funding Information: First, we would like to thank the authors whose work is included in this meta-analysis, especially those who supplied us with additional data. Second, we would like to thank Robert Sinsabaugh and three anonymous reviewers for their valuable comments on an earlier version of this manuscript. This study was supported by the National Natural Science Foundation of China (41701292), China Postdoctoral Science Foundation (2017M610647, 2018T111091), the Natural Science Basic Research Plan in Shaanxi Province (2017JQ3041), the State Key Laboratory of Loess and Quaternary Geology (SKLLQG1602), the Key Laboratory of Aerosol Chemistry and Physics (KLACP-17-02), Institute of Earth Environment, and Chinese Academy of Sciences. Contributions from Dr. Luo's Eco-lab to this study were financially supported by US Department of Energy grant DE-SC00114085 and US National Science Foundation grants EF 1137293 and OIA-1301789. This work was also supported by NSFC-Yunnan United Fund (U1302267) and the National Science Fund for Distinguished Young Scholars (31325005). Publisher Copyright: {\textcopyright} 2018 John Wiley & Sons Ltd",
year = "2018",
month = oct,
doi = "10.1111/gcb.14394",
language = "English (US)",
volume = "24",
pages = "4816--4826",
journal = "Global Change Biology",
issn = "1354-1013",
publisher = "Wiley-Blackwell",
number = "10",
}