DOI: 10.1111/gcb.13897
Scopus记录号: 2-s2.0-85030125000
论文题名: Natural disturbances are spatially diverse but temporally synchronized across temperate forest landscapes in Europe
作者: Senf C. ; Seidl R.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2018
卷: 24, 期: 3 起始页码: 1201
结束页码: 1211
语种: 英语
英文关键词: bark beetles
; Central Europe
; Ips typographus
; Landsat
; landscape analysis
; natural disturbance
; temperate forests
; topography
; windthrow
Scopus关键词: Ips typographus
; Scolytinae
英文摘要: Natural disturbance regimes are changing substantially in forests around the globe. However, large-scale disturbance change is modulated by a considerable spatiotemporal variation within biomes. This variation remains incompletely understood particularly in the temperate forests of Europe, for which consistent large-scale disturbance information is lacking. Here, our aim was to quantify the spatiotemporal patterns of forest disturbances across temperate forest landscapes in Europe using remote sensing data and determine their underlying drivers. Specifically, we tested two hypotheses: (1) Topography determines the spatial patterns of disturbance, and (2) climatic extremes synchronize natural disturbances across the biome. We used novel Landsat-based maps of forest disturbances 1986–2016 in combination with landscape analysis to compare spatial disturbance patterns across five unmanaged forest landscapes with varying topographic complexity. Furthermore, we analyzed annual estimates of disturbances for synchronies and tested the influence of climatic extremes on temporal disturbance patterns. Spatial variation in disturbance patterns was substantial across temperate forest landscapes. With increasing topographic complexity, natural disturbance patches were smaller, more complex in shape, more dispersed, and affected a smaller portion of the landscape. Temporal disturbance patterns, however, were strongly synchronized across all landscapes, with three distinct waves of high disturbance activity between 1986 and 2016. All three waves followed years of pronounced drought and high peak wind speeds. Natural disturbances in temperate forest landscapes of Europe are thus spatially diverse but temporally synchronized. We conclude that the ecological effect of natural disturbances (i.e., whether they are homogenizing a landscape or increasing its heterogeneity) is strongly determined by the topographic template. Furthermore, as the strong biome-wide synchronization of disturbances was closely linked to climatic extremes, large-scale disturbance episodes are likely in Europe's temperate forests under climate changes. © 2017 John Wiley & Sons Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/110476
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
There are no files associated with this item.
作者单位: Geography Department, Humboldt-Universität zu Berlin, Berlin, Germany; Institute for Silviculture, Department of Forest- and Soil Sciences, University of Natural Resources and Life Sciences (BOKU) Vienna, Vienna, Austria
Recommended Citation:
Senf C.,Seidl R.. Natural disturbances are spatially diverse but temporally synchronized across temperate forest landscapes in Europe[J]. Global Change Biology,2018-01-01,24(3)