DOI: 10.1007/s10584-016-1696-z
Scopus记录号: 2-s2.0-84968586338
论文题名: Modeling postglacial vegetation dynamics of temperate forests on the Olympic Peninsula (WA, USA) with special regard to snowpack
作者: Schwörer C. ; Fisher D.M. ; Gavin D.G. ; Temperli C. ; Bartlein P.J.
刊名: Climatic Change
ISSN: 0165-0009
EISSN: 1573-1480
出版年: 2016
卷: 137, 期: 2018-03-04 起始页码: 379
结束页码: 394
语种: 英语
Scopus关键词: Climate models
; Dynamics
; Moisture
; Snow
; Soil moisture
; Vegetation
; Atmosphere ocean general circulation models
; Bioclimatic variables
; Dynamic vegetation model
; Hydrological effects
; Precipitation gradients
; Species composition
; Temperature reconstruction
; Vegetation dynamics
; Forestry
; forest dynamics
; fossil record
; general circulation model
; Holocene
; hydrological hazard
; meadow
; Postglacial
; reconstruction
; snow accumulation
; snowpack
; soil moisture
; temperate forest
; vegetation dynamics
; Olympic Peninsula
; United States
; Washington [United States]
; Chironomidae
英文摘要: Past and future forest composition and distribution in temperate mountain ranges is strongly influenced by temperature and snowpack. We used LANDCLIM, a spatially explicit, dynamic vegetation model, to simulate forest dynamics for the last 16,000 years and compared the simulation results to pollen and macrofossil records at five sites on the Olympic Peninsula (Washington, USA). To address the hydrological effects of climate-driven variations in snowpack on simulated forest dynamics, we added a simple snow accumulation-and-melt module to the vegetation model and compared simulations with and without the module. LANDCLIM produced realistic present-day species composition with respect to elevation and precipitation gradients. Over the last 16,000 years, simulations driven by transient climate data from an atmosphere-ocean general circulation model (AOGCM) and by a chironomid-based temperature reconstruction captured Late-glacial to Late Holocene transitions in forest communities. Overall, the reconstruction-driven vegetation simulations matched observed vegetation changes better than the AOGCM-driven simulations. This study also indicates that forest composition is very sensitive to snowpack-mediated changes in soil moisture. Simulations without the snow module showed a strong effect of snowpack on key bioclimatic variables and species composition at higher elevations. A projected upward shift of the snow line and a decrease in snowpack might lead to drastic changes in mountain forests composition and even a shift to dry meadows due to insufficient moisture availability in shallow alpine soils. © 2016, Springer Science+Business Media Dordrecht.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/84240
Appears in Collections: 气候减缓与适应 气候变化事实与影响
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作者单位: Department of Geography, 1251 University of Oregon, Eugene, OR, United States; Woods Institute for the Environment, Stanford University, Stanford, CA, United States; School of Environmental and Forest Sciences, University of Washington, Seattle, WA, United States; Swiss Federal Research Institute WSL, Zürcherstrasse 111, Birmensdorf, Switzerland
Recommended Citation:
Schwörer C.,Fisher D.M.,Gavin D.G.,et al. Modeling postglacial vegetation dynamics of temperate forests on the Olympic Peninsula (WA, USA) with special regard to snowpack[J]. Climatic Change,2016-01-01,137(2018-03-04)