DOI: 10.1111/gcb.12625
论文题名: Strong contribution of autumn phenology to changes in satellite-derived growing season length estimates across Europe (1982-2011)
作者: Garonna I. ; de Jong R. ; de Wit A.J.W. ; Mücher C.A. ; Schmid B. ; Schaepman M.E.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2014
卷: 20, 期: 11 起始页码: 3457
结束页码: 3470
语种: 英语
英文关键词: Asymmetric trends
; GIMMS
; Growing season length
; Land surface phenology
; Spring vs. autumn phenology
; Vegetation activity
Scopus关键词: climate change
; Europe
; plant development
; remote sensing
; season
; space flight
; theoretical model
; Climate Change
; Europe
; Models, Theoretical
; Plant Development
; Remote Sensing Technology
; Seasons
; Spacecraft
英文摘要: Land Surface Phenology (LSP) is the most direct representation of intra-annual dynamics of vegetated land surfaces as observed from satellite imagery. LSP plays a key role in characterizing land-surface fluxes, and is central to accurately parameterizing terrestrial biosphere-atmosphere interactions, as well as climate models. In this article, we present an evaluation of Pan-European LSP and its changes over the past 30 years, using the longest continuous record of Normalized Difference Vegetation Index (NDVI) available to date in combination with a landscape-based aggregation scheme. We used indicators of Start-Of-Season, End-Of-Season and Growing Season Length (SOS, EOS and GSL, respectively) for the period 1982-2011 to test for temporal trends in activity of terrestrial vegetation and their spatial distribution. We aggregated pixels into ecologically representative spatial units using the European Landscape Classification (LANMAP) and assessed the relative contribution of spring and autumn phenology. GSL increased significantly by 18-24 days decade-1 over 18-30% of the land area of Europe, depending on methodology. This trend varied extensively within and between climatic zones and landscape classes. The areas of greatest growing-season lengthening were the Continental and Boreal zones, with hotspots concentrated in southern Fennoscandia, Western Russia and pockets of continental Europe. For the Atlantic and Steppic zones, we found an average shortening of the growing season with hotspots in Western France, the Po valley, and around the Caspian Sea. In many zones, changes in the NDVI-derived end-of-season contributed more to the GSL trend than changes in spring green-up, resulting in asymmetric trends. This underlines the importance of investigating senescence and its underlying processes more closely as a driver of LSP and global change. © 2014 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62106
Appears in Collections: 影响、适应和脆弱性
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作者单位: Remote Sensing Laboratories, Department of Geography, University of Zurich, Winterthurerstr. 190, Zurich, Switzerland; Earth Observation and Environmental Informatics, Alterra, Wageningen University and Research Centre, P.O. Box 47, Wageningen, Netherlands; Institute of Evolutionary Biology and Environmental Studies, University of Zurich, Winterthurerstrasse 190, Zurich, Switzerland
Recommended Citation:
Garonna I.,de Jong R.,de Wit A.J.W.,et al. Strong contribution of autumn phenology to changes in satellite-derived growing season length estimates across Europe (1982-2011)[J]. Global Change Biology,2014-01-01,20(11)