文章基本信息

标题：Impacto de los incendios forestales en comunidades vegetales sub-mediterráneas : evaluación multitemporal de la diversidad del paisaje utilizando imágenes Landsat TM
本地全文：下载
作者：F. Pérez-Cabello ; P. Ibarra ; J. de la Riva 等
期刊名称：Cuadernos de Investigación Geográfica = Geographical Research Letters
印刷版ISSN：0211-6820
电子版ISSN：1697-9540
出版年度：2007
卷号：33
页码：101-114
DOI：10.18172/cig.1191
出版社：Universidad de La Rioja
摘要：The impact and the evolution of the structure of the landscape in a forest fire of the PrePyrenees of Aragón using a set of 6 Landsat 5 TM images is analyzed, identifying the relationships between the space heterogeneity values and the vegetation types. NDVI values are extracted, obtaining the Shannon Index and performing its yearly cartography. Three representative components of the values of diversity are defined (prefire, short- and mid-term). It is concluded that at plant-community level the fire has generated an increase of the internal diversity. Nevertheless, in the mid-term and at a global scale the fire produces the landscape homogenization, as different authors describe using sources of similar information.