IB-CAS  > 植被与环境变化国家重点实验室
Soil extracellular enzyme activity and stoichiometry in China's forests
Zhou, Luhong1; Liu, Shangshi2,3; Shen, Haihua2,3; Zhao, Mengying2,3; Xu, Longchao2,3; Xing, Aijun2,3; Fang, Jingyun1,2
2020
Source PublicationFUNCTIONAL ECOLOGY
ISSN0269-8463
Volume34Issue:7Pages:1461-1471
AbstractEcoenzymatic stoichiometry links microbial decomposition with nutrient mineralization and improves our understanding of nutrient cycling in terrestrial ecosystems. Microbial C:N:P acquisition in the topsoil converged at a ratio of 1:1:1 in global ecosystems. However, whether the ratio of microbial acquisition is stable in forest soils, and is applicable among different soil depths remain unknown. Based on large-scale soil sampling in China's forests, we examined the patterns and environmental drivers of the eight most-widely measured enzyme activities and the relevant stoichiometry. We found that the ratio of C:N:P acquisition significantly deviated from 1:1:1. The specific enzyme activities (normalized by SOC) did not change significantly with latitude except those for xylosidase and acid phosphatase. Similarly, only the C:P acquisition ratio increased with latitude. Vertically, the specific activities of C-acquiring enzymes mainly increased, N-acquiring enzymes decreased and P-acquiring enzymes did not change with soil depth. Moreover, all ratios of microbial acquisition decreased, and the percentage of recalcitrant C increased significantly with increasing depth. Our study also showed that temperature and soil C:N ratio were the important factors in explaining the variations in specific enzyme activities and microbial nutrient acquisition, respectively. Our results indicated that no constant microbial C:N:P acquisition ratio can be widely recognized, and that SOC quality changed from labile to recalcitrant with depth. We highlight that depth-dependent enzymatic processes should be considered in future SOC dynamic models. A free Plain Language Summary can be found within the Supporting Information of this article.
Keyworddeep soil extracellular enzyme activity forest ecosystem microbe-soil feedback stoichiometry
Subject AreaEcology
DOI10.1111/1365-2435.13555
Indexed BySCI
Language英语
WOS KeywordORGANIC-MATTER DECOMPOSITION ; ECOENZYMATIC STOICHIOMETRY ; NUTRIENT ACQUISITION ; NITROGEN DEPOSITION ; MICROBIAL BIOMASS ; USE EFFICIENCY ; CLIMATE-CHANGE ; CARBON ; LIMITATION ; PHOSPHORUS
WOS Research AreaEnvironmental Sciences & Ecology
WOS IDWOS:000522495000001
PublisherWILEY
SubtypeArticle
Publication PlaceHOBOKEN
EISSN1365-2435
Funding OrganizationKey Research Program of Frontier Sciences, CAS [QYZDY-SSW-SMC011] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [31330012] ; China Postdoctoral Science FoundationChina Postdoctoral Science Foundation [2018M641074] ; National Key Research and Development Program [2017YFC0503901]
Corresponding Author Emailshen.haihua@ibcas.ac.cn ; jyfang@urban.pku.edu.cn
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Cited Times:16[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ibcas.ac.cn/handle/2S10CLM1/21839
Collection植被与环境变化国家重点实验室
Affiliation1.Peking Univ, Minist Educ, Coll Urban & Environm Sci, Beijing, Peoples R China
2.Peking Univ, Minist Educ, Key Lab Earth Surface Proc, Beijing, Peoples R China
3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China
4.Univ Chinese Acad Sci, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Zhou, Luhong,Liu, Shangshi,Shen, Haihua,et al. Soil extracellular enzyme activity and stoichiometry in China's forests[J]. FUNCTIONAL ECOLOGY,2020,34(7):1461-1471.
APA Zhou, Luhong.,Liu, Shangshi.,Shen, Haihua.,Zhao, Mengying.,Xu, Longchao.,...&Fang, Jingyun.(2020).Soil extracellular enzyme activity and stoichiometry in China's forests.FUNCTIONAL ECOLOGY,34(7),1461-1471.
MLA Zhou, Luhong,et al."Soil extracellular enzyme activity and stoichiometry in China's forests".FUNCTIONAL ECOLOGY 34.7(2020):1461-1471.
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