DOI: 10.1111/gcb.12947
论文题名: Successional and seasonal variations in soil and litter microbial community structure and function during tropical postagricultural forest regeneration: A multiyear study
作者: Smith A.P. ; Marín-Spiotta E. ; Balser T.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2015
卷: 21, 期: 9 起始页码: 3532
结束页码: 3547
语种: 英语
英文关键词: Extracellular enzymes
; Forest succession
; Land-use change
; Litter
; Microbial communities
; PLFA-FAME
; Soil
; Tropics
Scopus关键词: belowground biomass
; community structure
; concentration (composition)
; enzyme
; fatty acid
; litter
; microbial community
; reforestation
; seasonal variation
; soil microorganism
; soil organic matter
; succession
; rain
; agriculture
; biodiversity
; chemistry
; forest
; microbiology
; plant leaf
; Puerto Rico
; season
; Agriculture
; Biodiversity
; Forests
; Plant Leaves
; Puerto Rico
; Rain
; Seasons
; Soil Microbiology
英文摘要: Soil microorganisms regulate fundamental biochemical processes in plant litter decomposition and soil organic matter (SOM) transformations. Understanding how microbial communities respond to changes in vegetation is critical for improving predictions of how land-cover change affects belowground carbon storage and nutrient availability. We measured intra- and interannual variability in soil and forest litter microbial community composition and activity via phospholipid fatty acid analysis (PLFA) and extracellular enzyme activity across a well-replicated, long-term chronosequence of secondary forests growing on abandoned pastures in the wet subtropical forest life zone of Puerto Rico. Microbial community PLFA structure differed between young secondary forests and older secondary and primary forests, following successional shifts in tree species composition. These successional patterns held across seasons, but the microbial groups driving these patterns differed over time. Microbial community composition from the forest litter differed greatly from those in the soil, but did not show the same successional trends. Extracellular enzyme activity did not differ with forest succession, but varied by season with greater rates of potential activity in the dry seasons. We found few robust significant relationships among microbial community parameters and soil pH, moisture, carbon, and nitrogen concentrations. Observed inter- and intrannual variability in microbial community structure and activity reveal the importance of a multiple, temporal sampling strategy when investigating microbial community dynamics with land-use change. Successional control over microbial composition with forest recovery suggests strong links between above and belowground communities. © 2015 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61902
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Soil Science, University of Wisconsin-Madison, Madison, WI, United States; Department of Geography, University of Wisconsin-Madison, Madison, WI, United States; Department of Soil and Water Science, University of Florida, Gainesville, FL, United States
Recommended Citation:
Smith A.P.,Marín-Spiotta E.,Balser T.. Successional and seasonal variations in soil and litter microbial community structure and function during tropical postagricultural forest regeneration: A multiyear study[J]. Global Change Biology,2015-01-01,21(9)