{"title":"Swiss Tree Lines – a GIS-Based Approximation","authors":"E. Szerencsits","doi":"10.3097/LO.201228","DOIUrl":null,"url":null,"abstract":"Mountain timber lines are relevant in the context of land abandonment and climate change. For Switzerland, GIS-compliant delimitations of the tree line and the forest line are still lacking. Recent high-resolution landcover information offers new possibilities for GIS-based approaches. In a Swiss-wide study, an analysis based on slope zones was combined with a moving-window analysis to assess tree and forest line altitude, using topographic data. The tree and the forest lines were delimited at the upper altitude reached by a tree or closed forest respectively. The model delivered a fine-scaled delimitation sensitive to local conditions. The results indicate that earlier studies underestimated the tree line altitudes for the fringes of the Alps. Also the variability inside climatic and bio-geographical regions is larger than it was estimated up to now.","PeriodicalId":38803,"journal":{"name":"Landscape Online","volume":"28 1","pages":"1-18"},"PeriodicalIF":0.0000,"publicationDate":"2012-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"14","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Landscape Online","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.3097/LO.201228","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Environmental Science","Score":null,"Total":0}
引用次数: 14
Abstract
Mountain timber lines are relevant in the context of land abandonment and climate change. For Switzerland, GIS-compliant delimitations of the tree line and the forest line are still lacking. Recent high-resolution landcover information offers new possibilities for GIS-based approaches. In a Swiss-wide study, an analysis based on slope zones was combined with a moving-window analysis to assess tree and forest line altitude, using topographic data. The tree and the forest lines were delimited at the upper altitude reached by a tree or closed forest respectively. The model delivered a fine-scaled delimitation sensitive to local conditions. The results indicate that earlier studies underestimated the tree line altitudes for the fringes of the Alps. Also the variability inside climatic and bio-geographical regions is larger than it was estimated up to now.
Landscape OnlineEnvironmental Science-Nature and Landscape Conservation
CiteScore
2.60
自引率
0.00%
发文量
8
审稿时长
20 weeks
期刊介绍：
Landscape Online focuses on studies dealing with landscape research. The subject matter deals with any scientific, educational or applied aspect of processes, dynamics, indicators, controllers and visions related to landscapes. Furthermore, Landscape Online emphasizes the coupling of societal and natural systems, not only the involvement of human impact on landscape systems but also human perception of the landscape, its values and the evaluation of landscapes. Moreover, articles are appropriate that deal with landscape theory, system approaches and conceptual models of landscape, both their improvement and their discussion. Papers may be undisciplinary or multidisciplinary but have interdisciplinary or transdisciplinary appeal. All kinds of articles or parts of it must not be published beforehand in another journal
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