Drivers of soil microbial metabolic limitation changes along a vegetation restoration gradient on the Loess Plateau, China

doi:10.1016/j.geoderma.2019.06.037

IEECAS OpenIR > 生态环境研究室

	Drivers of soil microbial metabolic limitation changes along a vegetation restoration gradient on the Loess Plateau, China
	Deng, Lei 1,2; Peng, Changhui 1; Huang, Chunbo 3; Wang, Kaibo 4; Liu, Qiuyu 5; Liu, Yulin 5; Hai, Xuying 1; Shangguan, Zhouping 1,2
通讯作者	Shangguan, Zhouping(shangguan@ms.iswc.ac.cn)
	2019-11-01
发表期刊	GEODERMA
ISSN	0016-7061
卷号	353 页码:188-200
摘要	Soil extracellular enzymatic activity (EEA) stoichiometry could reflect the biogeochemical equilibrium between the metabolic requirements of microbial communities and environmental nutrients availability. However, the drivers of soil microbial metabolic limitation (SMML) changes remain poorly understood following vegetation restoration. We compared sites along a vegetation restoration chronosequence over a 30-year period on the Loess Plateau, China, and measured the potential activities of two C-acquiring enzymes (beta-1,4-glucosidase (BG) and beta-D-cellobiosidase (CBH)), two N-acquiring enzymes (beta-1,4-N-acetylglucosaminidase (NAG) and L-leucine aminopeptidase (LAP)), and one organic-P-acquiring enzyme (alkaline phosphatase (AP)), to quantify and compare the variations in metabolic limitations for soil microorganisms using EEA stoichiometry. The results showed constant microbial P limitation, but not N limitation, and an open downward "unimodal" trend in microbial C limitation; however, the microbial P limitation displayed exactly the opposite trend during vegetation restoration. Restoration age and properties of plant, soil, and microorganisms contributed to 82.9% of microbial C limitation and 84.6% of microbial P limitation, with soil presenting the highest relative effects of 76.1% and 59.6% on microbial C and P limitations, respectively. Plant productivity and species diversity decreased microbial C limitation owing to increasing plant C inputs, but increased microbial P limitation owing to plant nutrients competition with soil microorganisms. When the fungi:bacteria ratio in the soil increased, the SMML increased. Vegetation restoration increased the soil nutrients content and reduced SMML, and a decrease in the soil water content increased microbial P limitation. Thus, the effects of long-term vegetation restoration on SMML were the result of combined influences of plants, soil, and microorganisms.
关键词	Enzymatic stoichiometry Farmland abandonment Grassland Microbial C limitation Microbial P limitation Plant Soil
DOI	10.1016/j.geoderma.2019.06.037
关键词[WOS]	EXTRACELLULAR ENZYME-ACTIVITY ; LAND-USE CHANGES ; ECOENZYMATIC STOICHIOMETRY ; ORGANIC-CARBON ; ECOLOGICAL RESTORATION ; LITTER DECOMPOSITION ; NUTRIENT ACQUISITION ; FUNCTIONAL DIVERSITY ; TEMPORAL VARIATIONS ; EXTRACTION METHOD
收录类别	SCI ; SCI
语种	英语
资助项目	National Natural Science Foundation of China[41730638] ; National Natural Science Foundation of China[41877538] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA23070201] ; Funding of Special Support Plan of Young Talents Project of Shaanxi Province in China ; Funding of Promoting Plan to Creative Talents of Youth Science and Technology Star in Shaanxi Province of China[2018KM-088]
WOS研究方向	Agriculture
项目资助者	National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Funding of Special Support Plan of Young Talents Project of Shaanxi Province in China ; Funding of Promoting Plan to Creative Talents of Youth Science and Technology Star in Shaanxi Province of China
WOS类目	Soil Science
WOS记录号	WOS:000482513900018
出版者	ELSEVIER
引用统计	被引频次：102[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/13421
专题	生态环境研究室
通讯作者	Shangguan, Zhouping
作者单位	1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 2.Chinese Acad Sci Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China 3.Huazhong Agr Univ, Coll Hort & Forestry Sci, Wuhan 430070, Hubei, Peoples R China 4.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Inst Earth Environm, Xian 710075, Shaanxi, Peoples R China 5.Univ Quebec Montreal, Ctr CEF ESCER, Dept Biol Sci, Montreal, PQ H3C 3P8, Canada
推荐引用方式 GB/T 7714	Deng, Lei,Peng, Changhui,Huang, Chunbo,et al. Drivers of soil microbial metabolic limitation changes along a vegetation restoration gradient on the Loess Plateau, China[J]. GEODERMA,2019,353:188-200.
APA	Deng, Lei.,Peng, Changhui.,Huang, Chunbo.,Wang, Kaibo.,Liu, Qiuyu.,...&Shangguan, Zhouping.(2019).Drivers of soil microbial metabolic limitation changes along a vegetation restoration gradient on the Loess Plateau, China.GEODERMA,353,188-200.
MLA	Deng, Lei,et al."Drivers of soil microbial metabolic limitation changes along a vegetation restoration gradient on the Loess Plateau, China".GEODERMA 353(2019):188-200.