DOI: 10.1111/gcb.12950
论文题名: Codominant water control on global interannual variability and trends in land surface phenology and greenness
作者: Forkel M. ; Migliavacca M. ; Thonicke K. ; Reichstein M. ; Schaphoff S. ; Weber U. ; Carvalhais N.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2015
卷: 21, 期: 9 起始页码: 3414
结束页码: 3435
语种: 英语
英文关键词: Browning
; Dynamic global vegetation model
; Greening
; Land-use and land-cover change
; Model evaluation
; Phenology
; Remote sensing
; Vegetation dynamics
Scopus关键词: annual variation
; boreal forest
; climate effect
; environmental factor
; growing season
; land surface
; phenology
; satellite data
; temperate forest
; vegetation dynamics
; water availability
; North America
; Siberia
; water
; climate change
; environment
; metabolism
; plant development
; season
; temperature
; theoretical model
; Climate Change
; Environment
; Models, Theoretical
; Plant Development
; Seasons
; Temperature
; Water
英文摘要: Identifying the relative importance of climatic and other environmental controls on the interannual variability and trends in global land surface phenology and greenness is challenging. Firstly, quantifications of land surface phenology and greenness dynamics are impaired by differences between satellite data sets and phenology detection methods. Secondly, dynamic global vegetation models (DGVMs) that can be used to diagnose controls still reveal structural limitations and contrasting sensitivities to environmental drivers. Thus, we assessed the performance of a new developed phenology module within the LPJmL (Lund-Potsdam-Jena managed Lands) DGVM with a comprehensive ensemble of three satellite data sets of vegetation greenness and ten phenology detection methods, thereby thoroughly accounting for observational uncertainties. The improved and tested model allows us quantifying the relative importance of environmental controls on interannual variability and trends of land surface phenology and greenness at regional and global scales. We found that start of growing season interannual variability and trends are in addition to cold temperature mainly controlled by incoming radiation and water availability in temperate and boreal forests. Warming-induced prolongations of the growing season in high latitudes are dampened by a limited availability of light. For peak greenness, interannual variability and trends are dominantly controlled by water availability and land-use and land-cover change (LULCC) in all regions. Stronger greening trends in boreal forests of Siberia than in North America are associated with a stronger increase in water availability from melting permafrost soils. Our findings emphasize that in addition to cold temperatures, water availability is a codominant control for start of growing season and peak greenness trends at the global scale. © 2015 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61628
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department for Biogeochemical Integration, Max-Planck-Institute for Biogeochemistry, Hans-Knöll-Str. 10, Jena, Germany; Potsdam Institute for Climate Impact Research, Earth System Analysis, Telegraphenberg A31, Potsdam, Germany; Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal
Recommended Citation:
Forkel M.,Migliavacca M.,Thonicke K.,et al. Codominant water control on global interannual variability and trends in land surface phenology and greenness[J]. Global Change Biology,2015-01-01,21(9)