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DOI	10.1007/s42832-021-0101-7
	Seasonal changes in soil properties, microbial biomass and enzyme activities across the soil profile in two alpine ecosystems
	Chen, Ying; Han, Mengguang; Yuan, Xia; Cao, Guangmin; Zhu, Biao
通讯作者	Zhu, BA (通讯作者)，Peking Univ, Coll Urban & Environm Sci, Inst Ecol, Beijing 100871, Peoples R China. ; Zhu, BA (通讯作者)，Peking Univ, Key Lab Earth Surface Proc, Minist Educ, Beijing 100871, Peoples R China.
发表日期	2021
ISSN	2662-2289
EISSN	2662-2297
起始页码	383
结束页码	394
卷号	3 期号:4
英文摘要	Microbial biomass and extracellular enzyme activities control the rate of soil organic carbon decomposition, thereby affecting soil carbon pool. However, seasonal dynamics of soil microbial properties at different depths of the soil profile remain unclear. In this study, we sampled soils in the early, middle and late growing season at different soil depths (0-100 cm) in two alpine ecosystems (meadow and shrubland) on the Tibetan Plateau. We measured plant belowground biomass, soil properties, microbial biomass and extracellular enzyme activities. We found that soil properties changed significantly with sampling time and soil depth. Specifically, most of soil properties consistently decreased with increasing soil depth, but inconsistently varied with sampling time. Moreover, root biomass and microbial biomass decreased with increasing soil depth and increased with sampling time during the growing season. However, microbial extracellular enzyme activities and their vector properties all changed with depth, but did not vary significantly with time. Taken together, these results show that soil properties, microbial biomass and extracellular enzyme activities mostly decline with increasing depth of the soil profile, and soil properties and microbial biomass are generally more variable during the growing season than extracellular enzyme activities across the soil profile in these alpine ecosystems. Further studies are needed to investigate the changes in soil microbial community composition and function at different soil depths over the growing season, which can enhance our mechanistic understanding of whole-profile soil carbon dynamics of alpine ecosystems under climate change. (C) Higher Education Press 2021
关键词	COMMUNITY STRUCTURE ORGANIC-MATTER NITROGEN CARBON STOICHIOMETRY DYNAMICS RESPONSES PATTERNS FOREST DEPTH
英文关键词	Seasonal variation; Soil depth; Microbial biomass; Extracellular enzyme activity; Alpine ecosystem
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
WOS类目	Ecology ; Soil Science
WOS记录号	WOS:000731792500001
来源期刊	SOIL ECOLOGY LETTERS
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254469
作者单位	[Chen, Ying; Han, Mengguang; Yuan, Xia; Zhu, Biao] Peking Univ, Coll Urban & Environm Sci, Inst Ecol, Beijing 100871, Peoples R China; [Chen, Ying; Han, Mengguang; Yuan, Xia; Zhu, Biao] Peking Univ, Key Lab Earth Surface Proc, Minist Educ, Beijing 100871, Peoples R China; [Cao, Guangmin] Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810008, Peoples R China
推荐引用方式 GB/T 7714	Chen, Ying,Han, Mengguang,Yuan, Xia,et al. Seasonal changes in soil properties, microbial biomass and enzyme activities across the soil profile in two alpine ecosystems[J]. 中国科学院西北生态环境资源研究院,2021,3(4).
APA	Chen, Ying,Han, Mengguang,Yuan, Xia,Cao, Guangmin,&Zhu, Biao.(2021).Seasonal changes in soil properties, microbial biomass and enzyme activities across the soil profile in two alpine ecosystems.SOIL ECOLOGY LETTERS,3(4).
MLA	Chen, Ying,et al."Seasonal changes in soil properties, microbial biomass and enzyme activities across the soil profile in two alpine ecosystems".SOIL ECOLOGY LETTERS 3.4(2021).