气候变化领域集成服务门户(CCPortal): Trends in soil microbial communities in afforestation ecosystem modulated by aggradation phase

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DOI	10.1016/j.foreco.2019.03.036
	Trends in soil microbial communities in afforestation ecosystem modulated by aggradation phase
	Zhao F.Z.; Ren C.J.; Han X.H.; Yang G.H.; Wang J.; Doughty R.; Wang Z.T.
发表日期	2019
ISSN	0378-1127
起始页码	167
结束页码	175
卷号	441
英文摘要	Afforestation may alter soil microbial community structure and function, but its effects on trends of microbial abundance and activities has not been analyzed globally. The objectives of this study was to investigate how soil microbial community abundance and activities change as stand age increases and illustrate the factors affecting these changes after afforestation. We conducted a comprehensive meta-analysis from 45 articles to evaluate global patterns and controls of soil microbial change following afforestation. Our results showed that during aggradation, all microbial biomass carbon (C mic ), microbial biomass nitrogen (N mic ), bacterial, and fungal abundance significantly increased during the early stage (0–10 years) but decreased for late-stage sites (>30 years). Microbial activities were also changed with stand age. In particular, C mic : N mic and microbial respiration to biomass ratio (R mic :C mic ) significantly decreased during the late stages, but N mic : Nitrogen (N soil ), microbial respiration (R mic ), and R mic :C mic significantly increased during the early stage. These trends highlighted the importance of stand age in regulating the response of soil microbial abundance and activities to change. In addition, we found soil microbial community abundance was positively correlated with soil water content (SWC), pH, Bulk density (BD), C soil , N soil , and C soil :N soil , but negatively correlated P soil , which suggested that the trend in soil properties following afforestation should be considered when implementing soil microbes as proxies of soil nutrients cycling. More importantly, response ratio of soil bacterial, fungi, and microbial community abundance was negatively correlated with response ratio of aridity index. This correlation indicated that the sensitivity of response ratio of microbial abundance to increases in precipitation can be greater in arid areas relative to humid areas. Overall, our findings highlight a broad understanding of the responses of microbial community abundance and activities to afforestation, which provides the background needed to form novel methods that accurately model ecosystem functions. © 2019 Elsevier B.V.
英文关键词	Aridity index; Ecological theory; Meta-analysis; Soil microbes, afforestation
语种	英语
scopus关键词	Bacteria; Biomass; Ecosystems; Nitrogen; Soil moisture; Aridity index; Ecological theory; Meta analysis; Microbial biomass carbon; Microbial respiration; Soil microbes; Soil microbial community; Soil microbial community structure; Reforestation; abundance; afforestation; aridity; bacterium; biomass; ecological theory; fungus; meta-analysis; microbial community; nitrogen; nutrient cycling; soil microorganism; soil water; Age; Bacteria; Biomass; Ecosystems; Nitrogen; Reforestation; Bacteria (microorganisms); Fungi
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/156041
作者单位	Shaanxi Key Laboratory of Earth Surface System and Environmental Carrying Capacity, Northwest University, Xi'an, Shaanxi 710127, China; State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Water and Soil Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi 712100, China; College of Urban and Environmental Sciences, Northwest University, Xi'an, Shaanxi 710127, China; College of Agronomy, Northwest A&F University, Yangling, Shaanxi 712100, China; Shaanxi Land Construction Group, Shaanxi LCG Land Project Technology Institute, Key Laboratory of Degraded and Unused Land Consolidation Engineering the Ministry of Land and Resources of China, Xi'an, Shaanxi 710075, China; Department of Microbiology and Plant Biology, Center for Spatial Analysis, University of Oklahoma, Norman, OK 73019, United States; Agriculture College of Guangxi University, Nanning, 530004, China
推荐引用方式 GB/T 7714	Zhao F.Z.,Ren C.J.,Han X.H.,et al. Trends in soil microbial communities in afforestation ecosystem modulated by aggradation phase[J],2019,441.
APA	Zhao F.Z..,Ren C.J..,Han X.H..,Yang G.H..,Wang J..,...&Wang Z.T..(2019).Trends in soil microbial communities in afforestation ecosystem modulated by aggradation phase.Forest Ecology and Management,441.
MLA	Zhao F.Z.,et al."Trends in soil microbial communities in afforestation ecosystem modulated by aggradation phase".Forest Ecology and Management 441(2019).