DOI: 10.1016/j.foreco.2017.08.034
Scopus记录号: 2-s2.0-85028405611
论文题名: Forest micro-environment develops through time: Changes in physical and structural heterogeneity follow abandonment from two forms of agriculture
作者: Holmes M.A. ; Matlack G.R.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2017
卷: 404 起始页码: 55
结束页码: 64
语种: 英语
英文关键词: Agriculture
; Chronosequence
; Land-use history
; Second-growth forest
; Succession
Scopus关键词: Agriculture
; Land use
; Plant shutdowns
; Plants (botany)
; Chronosequences
; Community development
; Environmental variables
; Land use history
; Second-growth forests
; Structural development
; Structural heterogeneity
; Succession
; Forestry
英文摘要: Agriculture alters and homogenizes the physical environment, and persistent changes potentially affect community development in post-agricultural forests. We ask whether physical and structural development differs between second-growth stands of contrasting ages and agricultural histories. Formerly cultivated and pastured sites were expected to follow separate trajectories of succcessional development but eventually to converge as natural processes obscured the environmental legacies of agriculture. We used a replicated chronosequence to examine microenvironment development in successional stands over 80 years following canopy closure and compared successional stands with a control group of long-established stands. Physical, edaphic, and structural variables were measured in each site. Microtopography increased through successional time, while canopy openness and soil bulk density declined. Formerly cultivated sites showed less microtopographic variation and higher bulk density than pastured sites, consistent with a history of plowing. Formerly cultivated sites showed spatial homogenization in microtopography, soil organic matter, and herb cover. Stands in the 61–80 year age class did not differ significantly from long-established forest in any of the environmental variables or the spatial distribution of such variation. Our results suggest that 80 years of forest development is sufficient for most environmental legacies of agriculture to fade, reducing their potential to influence plant community composition. However, contrasting land-use history is still evident for several decades and may contribute to community structure over that period. © 2017 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64106
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Environmental and Plant Biology, Porter Hall, Ohio University, Athens, OH, United States
Recommended Citation:
Holmes M.A.,Matlack G.R.. Forest micro-environment develops through time: Changes in physical and structural heterogeneity follow abandonment from two forms of agriculture[J]. Forest Ecology and Management,2017-01-01,404