Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1088/1748-9326/ab4937 |
The effects of forest cover and disturbance on torrential hazards: large-scale evidence from the Eastern Alps | |
Sebald, Julius1; Senf, Cornelius1; Heiser, Micha2; Scheidl, Christian2; Pflugmacher, Dirk3; Seidl, Rupert1 | |
2019-11-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS
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ISSN | 1748-9326 |
出版年 | 2019 |
卷号 | 14期号:11 |
文章类型 | Article |
语种 | 英语 |
国家 | Austria; Germany |
英文摘要 | Global human population growth, limited space for settlements and a booming tourism industry have led to a strong increase of human infrastructure in mountain regions. As this infrastructure is highly exposed to natural hazards, a main role of mountain forests is to regulate the environment and reduce hazard probability. However, canopy disturbances are increasing in many parts of the world, potentially threatening the protection function of forests. Yet, large-scale quantitative evidence on the influence of forest cover and disturbance on natural hazards remains scarce to date. Here we quantified the effects of forest cover and disturbance on the probability and frequency of torrential hazards for 10 885 watersheds in the Eastern Alps. Torrential hazard occurrences were derived from a comprehensive database documenting 3768 individual debris flow and flood events between 1986 and 2018. Forest disturbances were mapped from Landsat satellite time series analysis. We found evidence that forests reduce the probability of natural hazards, with a 25 percentage point increase in forest cover decreasing the probability of torrential hazards by 8.7%;1.2%. Canopy disturbances generally increased the probability of torrential hazard events, with the regular occurrence of large disturbance events being the most detrimental disturbance regime for natural hazards. Disturbances had a bigger effect on debris flows than on flood events, and press disturbances were more detrimental than pulse disturbances. We here present the first large scale quantification of forest cover and disturbance effects on torrential hazards. Our findings highlight that forests constitute important green infrastructure in mountain landscapes, efficiently reducing the probability of natural hazards, but that increasing forest disturbances can weaken the protective function of forests. |
英文关键词 | forest disturbance natural hazards torrential hazards debris flow flood |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000499967600001 |
WOS关键词 | LANDSAT TIME-SERIES ; MOUNTAIN FORESTS ; PROTECTION FORESTS ; ECOSYSTEM SERVICES ; DEBRIS FLOWS ; MANAGEMENT ; SYSTEMS ; SUSCEPTIBILITY ; LANDTRENDR ; CATCHMENTS |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/224678 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Univ Nat Resources & Life Sci BOKU, Inst Silviculture, Dept Forest & Soil Sci, Peter Jordan Str 82, A-1190 Vienna, Austria; 2.Univ Nat Resources & Life Sci BOKU, Inst Mt Risk Engn, Dept Civil Engn & Nat Hazards, Peter Jordan Str 82, A-1190 Vienna, Austria; 3.Humboldt Univ, Geog Dept, Unter Linden 6, D-10099 Berlin, Germany |
推荐引用方式 GB/T 7714 | Sebald, Julius,Senf, Cornelius,Heiser, Micha,et al. The effects of forest cover and disturbance on torrential hazards: large-scale evidence from the Eastern Alps[J]. ENVIRONMENTAL RESEARCH LETTERS,2019,14(11). |
APA | Sebald, Julius,Senf, Cornelius,Heiser, Micha,Scheidl, Christian,Pflugmacher, Dirk,&Seidl, Rupert.(2019).The effects of forest cover and disturbance on torrential hazards: large-scale evidence from the Eastern Alps.ENVIRONMENTAL RESEARCH LETTERS,14(11). |
MLA | Sebald, Julius,et al."The effects of forest cover and disturbance on torrential hazards: large-scale evidence from the Eastern Alps".ENVIRONMENTAL RESEARCH LETTERS 14.11(2019). |
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