DOI: 10.1016/j.foreco.2012.10.024
Scopus记录号: 2-s2.0-84870169814
论文题名: Climate induced birch mortality in Trans-Baikal lake region, Siberia
作者: Kharuk V.I. ; Ranson K.J. ; Oskorbin P.A. ; Im S.T. ; Dvinskaya M.L.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2013
卷: 289 起始页码: 385
结束页码: 392
语种: 英语
英文关键词: Betula pendula
; Climate-induced tree mortality
; Drought impact
; Forest die-off
; Forest-steppe
Scopus关键词: Air temperature
; Betula pendula
; Climate impacts
; Die-off
; Forest decline
; Forest-steppe
; Ground measurements
; Lake Baikal
; Meteorological observation
; Negative correlation
; Pendula
; Positive correlations
; Precipitation extremes
; Satellite data
; SIBERIA
; Siberian forest
; Soil water content
; Stem volume
; Study areas
; Tree mortality
; Tree ring data
; Tree-ring analysis
; Atmospheric temperature
; Drought
; Lakes
; Soil moisture
; Forestry
; air temperature
; climate effect
; deciduous forest
; drought stress
; ecotone
; mortality
; population decline
; satellite data
; soil water
; steppe
; tree ring
; twenty first century
; water content
; Betula Verrucosa
; Drought
; Forestry
; Lakes
; Moisture
; Mortality
; Soil
; Temperature
; Russian Federation
; Siberia
; Transbaikalia
; Betula pendula
英文摘要: The Trans-Baikal (or Zabailkal'e) region includes the forest-steppe ecotones south and east of Lake Baikal in Russia and has experienced drought for several years. The decline and mortality of birch (Betula pendula) stands within the forest-steppe ecotone Trans-Baikal region was studied based on a temporal series of satellite data, ground measurements, and tree ring analysis. During the first decade of the 21st century birch stands decline and mortality were observed on about 5% of the total area of stands within our 1250km2 study area. Birch forest decline and mortality occurs mainly at the margins of stands, within the forest-steppe ecotone on slopes with direct insolation. During the first decade of the 21st century summer (June-August) precipitation was about 25% below normal. Soil water content measurements were lowest within dead stands and highest within healthy stands and intermediate within damaged stands. Drought impact on stands was amplified by an increase in summer air temperatures (+0.9°C) in comparison with the previous decade. Tree ring data of " surviving" and " dead" tree groups showed a positive correlation with summer/annual precipitation and negative correlation with summer air temperatures. Temperature and precipitation extreme anomalies tend to occur in the region with a period of about 27years. The observed anomaly was the most severe since the beginning of meteorological observations in the year 1900. Data for the other sites showed a positive climate impact on the growth and expansion of Siberian forests. That is, the same species (B. pendula) showed considerable increase (1.4 times both in height and stem volume) during 20th-21st centuries as temperature increased but precipitation remained at adequate levels. © 2012 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66801
Appears in Collections: 影响、适应和脆弱性
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作者单位: V.N. Sukachev Institute of Forest, Siberian Federal University, Krasnoyarsk, Russian Federation; NASA's Goddard Space Flight Center, Greenbelt, MD 20771, United States
Recommended Citation:
Kharuk V.I.,Ranson K.J.,Oskorbin P.A.,et al. Climate induced birch mortality in Trans-Baikal lake region, Siberia[J]. Forest Ecology and Management,2013-01-01,289