DOI: 10.1016/j.foreco.2015.01.033
Scopus记录号: 2-s2.0-84928262145
论文题名: Forest change over 155 years along biophysical gradients of forest composition, environment, and anthropogenic disturbance
作者: Abella S.R. ; Chiquoine L.P. ; Sinanian P.A.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2015
卷: 348 起始页码: 196
结束页码: 207
语种: 英语
英文关键词: Abies concolor
; Little Ice Age
; Mixed conifer
; Pinus ponderosa
; Soil
; Topography
Scopus关键词: Biophysics
; Glacial geology
; Soils
; Topography
; Abies concolor
; Anthropogenic disturbance
; Compositional changes
; Little Ice Age
; Management applications
; Mixed conifer
; Pinus ponderosa
; Spatio-temporal variation
; Forestry
; biophysics
; community composition
; forest dynamics
; forest management
; human activity
; landscape change
; mixed forest
; spatiotemporal analysis
; Forest Management
; Pinus Ponderosa
; Soil
; Nevada
; Spring Mountains
; United States
; Abies concolor
; Coniferophyta
; Pinus ponderosa
英文摘要: Understanding temporal forest change across spatial biophysical gradients is fundamental to managing dynamic forests across variable landscapes. This is especially true for identifying how biophysical variation mediates forest development through multi-century changes in climate and eras of forest manipulation by humans. We examined 155. years of forest change across a 13,000-ha mixed conifer landscape in the Spring Mountains, Nevada, USA. We reconstructed forest composition at 31 sites in 1855 (pre-Euro-American settlement, and near the end of the Little Ice Age), 1881 (logging era), 1900 (before establishment of government forest reserve), 1950 (mid-century fire exclusion), and 2009 (present forest). Differing from many other western conifer landscapes, density of large trees (>50. cm in diameter) increased through time. Aside from large trees and one measure of species compositional change, five other measures of forest change (e.g., percent difference in tree density) were spatially variable across the landscape and not well represented by 'average' change in the study area. Forest composition in 1855 minimally influenced the next 155. years of forest change. In contrast, the amount, timing, and direction of forest change were linked with topographic gradients. Forests on warm slope aspects incurred the least amount of change, which also was delayed in time, whereas forests on cooler aspects already appreciably changed by 1900. Warm aspects were the only ones to lose trees during the most recent 60-year period (1950-2009), with a decline in median tree density of 13%, compared to continued gains on moister sites. Management applications of this spatio-temporal variation include anchoring fuel treatments around areas of open, little-changed forest to increase effective size of treatments. © 2015 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65442
Appears in Collections: 影响、适应和脆弱性
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作者单位: University of Nevada Las Vegas, School of Life Sciences, Las Vegas, NV, United States; University of Nevada Las Vegas, Department of Environmental and Occupational Health, Las Vegas, NV, United States
Recommended Citation:
Abella S.R.,Chiquoine L.P.,Sinanian P.A.. Forest change over 155 years along biophysical gradients of forest composition, environment, and anthropogenic disturbance[J]. Forest Ecology and Management,2015-01-01,348