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- W2003702015 abstract "CR Climate Research Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsSpecials CR 41:205-220 (2010) - DOI: https://doi.org/10.3354/cr00846 Simple statistical approach for computing land cover types and potential natural vegetation M. Zampieri1, P. Lionello2,* 1ISAC-CNR, Lecce, Italy 2Department of Material Sciences, University of Salento and CMCC, Italy *Corresponding author. Email: piero.lionello@unisalento.it ABSTRACT: The main objective of this study was to show the potential of a simple and computationally inexpensive statistical method for the computation of land cover types (LCTs) and potential natural vegetation (PNV), which can be easily adapted to any LCT scheme used by climate models. We propose a diagnostic model (Vegetation Reconstruction by Diagnostic Equilibrium, VERDE), which is based on the cluster analysis of high-resolution datasets of observed LCT distribution and of climate variables. We discuss the reliability of this statistical approach and show that VERDE can be applied for reconstructing PNV distribution in areas such as Europe, India, and China where original vegetation has been replaced by crops and urban areas. According to VERDE, the dominant PNV consists of broadleaf deciduous trees in Central Europe, mixed savanna and grassland in Eastern Europe at mid-latitudes, and evergreen needle trees in Russia. Large areas of India are covered by savanna, and of China by grassland, mixed forest, and evergreen broadleaf trees. VERDE was applied to 5 climate model scenarios (produced by HadCM3, GFDL-CM2.0, IPSL-CM4, CSIRO-MK3, and CNRM-CM3) to identify changes in potential vegetation at a global scale that would be induced by the projected climate change at the end of the 21st century. In the Northern Hemisphere, our results showed an increase in barren soils (deserts) in the areas from the tropics to the mid-latitudes, a northward shift of various types of forest, and a reduction in snow- or ice-covered land and in areas occupied by shrubs and bushes (tundra) at high latitudes. Changes were smaller in the Southern Hemisphere and suggest increases in savanna in South America and shrublands in Australia. KEY WORDS: Land cover · Potential vegetation · Landuse change · Climate change · K-means clustering · Impacts Full text in pdf format PreviousNextCite this article as: Zampieri M, Lionello P (2010) Simple statistical approach for computing land cover types and potential natural vegetation. Clim Res 41:205-220. https://doi.org/10.3354/cr00846 Export citation RSS - Facebook - Tweet - linkedIn Cited by Published in CR Vol. 41, No. 3. Online publication date: May 04, 2010 Print ISSN: 0936-577X; Online ISSN: 1616-1572 Copyright © 2010 Inter-Research." @default.
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