globalchange  > 影响、适应和脆弱性
DOI: 10.1016/j.foreco.2014.10.027
Scopus记录号: 2-s2.0-84911898176
论文题名:
Biomass allometry for alder, dwarf birch, and willow in boreal forest and tundra ecosystems of far northeastern Siberia and north-central Alaska
作者: Berner L.T.; Alexander H.D.; Loranty M.M.; Ganzlin P.; Mack M.C.; Davydov S.P.; Goetz S.J.
刊名: Forest Ecology and Management
ISSN:  0378-1127
出版年: 2015
卷: 337
起始页码: 110
结束页码: 118
语种: 英语
英文关键词: Alnus ; Betula ; Biometry ; Carbon ; Salix ; Shrub
Scopus关键词: Carbon ; Ecosystems ; Plants (botany) ; Alnus ; Betula ; Biometry ; Salix ; Shrub ; Biomass ; aboveground biomass ; allometry ; basal area ; boreal forest ; deciduous forest ; ecoregion ; harvesting ; shrub ; tundra ; Alaska ; Russian Federation ; Sakha ; Siberia ; United States ; Alnus ; Betula ; Betula nana ; Salix
英文摘要: Shrubs play an important ecological role in the Arctic system, and there is evidence from many Arctic regions of deciduous shrubs increasing in size and expanding into previously forb or graminoid-dominated ecosystems. There is thus a pressing need to accurately quantify regional and temporal variation in shrub biomass in Arctic regions, yet allometric equations needed for deriving biomass estimates from field surveys are rare. We developed 66 allometric equations relating basal diameter (BD) to various aboveground plant characteristics for three tall, deciduous shrub genera growing in boreal and tundra ecoregions in far northeastern Siberia (Yakutia) and north-central Alaska. We related BD to plant height and stem, branch, new growth (leaves+new twigs), and total aboveground biomass for alder (Alnus viridis subsp. crispa and Alnus fruticosa), dwarf birch (Betula nana subsp. exilis and divaricata), and willow (Salix spp.). The equations were based on measurements of 358 shrubs harvested at 33 sites. Plant height (r2=0.48-0.95), total aboveground biomass (r2=0.46-0.99), and component biomass (r2=0.13-0.99) were significantly (P<0.01) related to shrub BD. Alder and willow populations exhibited differences in allometric relationships across ecoregions, but this was not the case for dwarf birch. The allometric relationships we developed provide a tool for researchers and land managers seeking to better quantify and monitor the form and function of shrubs across the Arctic landscape. © 2014 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65607
Appears in Collections:影响、适应和脆弱性

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作者单位: The Woods Hole Research Center, 149 Woods Hole Road, Falmouth, MA, United States; Department of Forest Ecosystems and Society, Oregon State University, 367 Richardson Hall, Corvallis, OR, United States; Department of Biological Sciences, University of Texas - Brownsville, 80 Fort Brown, Brownsville, TX, United States; Department of Geography, Colgate University, 13 Oak Drive, Hamilton, NY, United States; Department of Biology, University of Florida, P.O. Box 118525, Gainesville, FL, United States; North-East Scientific Station, Pacific Institute for Geography, Russian Academy of Sciences, Cherskii, Sakha Republic, Russian Federation; College of Forestry and Conservation, University of Montana, 32 Campus Drive, Missoula, MT, United States

Recommended Citation:
Berner L.T.,Alexander H.D.,Loranty M.M.,et al. Biomass allometry for alder, dwarf birch, and willow in boreal forest and tundra ecosystems of far northeastern Siberia and north-central Alaska[J]. Forest Ecology and Management,2015-01-01,337
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