Responses of the soil microbial catabolic profile and diversity to vegetation rehabilitation in degraded semiarid grassland

doi:10.1016/j.apsoil.2016.01.022

	Responses of the soil microbial catabolic profile and diversity to vegetation rehabilitation in degraded semiarid grassland
	Zhang, Xiaoke 1; Steinberger, Yosef 1,4; Yu, Jun 1; Unc, Adrian 2,3
刊名	APPLIED SOIL ECOLOGY
	2016-05-01
卷号	101 页码:124-131
关键词	Soil Restoration Functional Diversity Community Level Physiological Profile Labile c Microresp (Tm) Approach
ISSN号	0929-1393
DOI	10.1016/j.apsoil.2016.01.022
英文摘要	Changes in the soil labile C pools induced by vegetation rehabilitation on semiarid lands are assumed to correlate with changes in the microbial catabolic profiles. To verify this, soil was sampled under the canopies of 12-year-old (R12Y) and 30-year-old (R30Y) planted Caragana microphylla shrubs, as well as native C. microphylla shrubs, all located in the Horqin Sandy Land, China. Community Level Physiological Profiles (CLPPs) of soils were determined to reveal any qualitative and quantitative shifts in soil microbial catabolism linked with the revegetation process. water-soluble C (WSC) and hot-water extractable C (HWEC) were measured to indicate the availability of labile C pools. As the restoration proceeds, soil organic C (C-org) increased 2-3 times at the R30Y habitat compared to the R12Y habitat. The total utilization rate of the 15 C substrates also increased from 0.68 mu g CO2-C g(-1) soil h(-1) at the R12Y habitat to 4.90 mu g CO2-C g(-1) soil h(-1) at the R30Y habitat, but a slight decline in catabolic diversity, from 2.53 to 2.29, was recorded. Principal component analysis and redundancy analysis revealed that soil microbial communities colonizing the R12Y habitat exhibited an affinity to carbohydrates, which positively correlated to the relative concentration of WSC. Those colonizing the R30Y and native habitats mainly preferred carboxylic acids and 3,4-dihydroxybenzoic acid due to higher C-org content and relative concentration of HWEC. (C) 2016 Elsevier B.V. All rights reserved.
WOS研究方向	Agriculture
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000375121300016
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/122633]
专题	中国科学院沈阳应用生态研究所
通讯作者	Steinberger, Yosef
作者单位	1.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China 2.Mem Univ Newfoundland, Boreal Ecosyst Res Initiat, Corner Brook, NF A2H 6P9, Canada 3.Univ Leeds, Sch Geog, Leeds LS2 9JT, W Yorkshire, England 4.Bar Ilan Univ, Mina & Everard Goodman Fac Life Sci, IL-529002 Ramat Gan, Israel
推荐引用方式 GB/T 7714	Zhang, Xiaoke,Steinberger, Yosef,Yu, Jun,et al. Responses of the soil microbial catabolic profile and diversity to vegetation rehabilitation in degraded semiarid grassland[J]. APPLIED SOIL ECOLOGY,2016,101:124-131.
APA	Zhang, Xiaoke,Steinberger, Yosef,Yu, Jun,&Unc, Adrian.(2016).Responses of the soil microbial catabolic profile and diversity to vegetation rehabilitation in degraded semiarid grassland.APPLIED SOIL ECOLOGY,101,124-131.
MLA	Zhang, Xiaoke,et al."Responses of the soil microbial catabolic profile and diversity to vegetation rehabilitation in degraded semiarid grassland".APPLIED SOIL ECOLOGY 101(2016):124-131.