文章基本信息

标题：Quantifying the land cover changes and fragmentation patterns in the Argentina Pampas, in the last 37 years (1974-2011)
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作者：Bruno Lara ; Mercelo Gandini
期刊名称：GeoFocus
印刷版ISSN：1578-5157
出版年度：2014
期号：14
页码：163-180
语种：Spanish
出版社：Grupo de Métodos Cuantitativos, SIG y Teledetección, A.G.E
摘要：In the current work, a combination of land-cover dynamics maps and landscape pattern metrics based on remote-sensing images was employed to quantify the spatial and temporal land cover changes and fragmentation patterns in the centre of the Province of Buenos Aires, Argentina, in the period 1974-2011. This study area covers two agro-ecological zones: the Flooding Pampa and the Inland Pampa. In contrast with other regions of the Rio de La Plata Grasslands, native grasslands have been substituted by the expansion of short-grass matrix (grassland more adapted to grazing cattle): over the whole study period, the native grasslands decreased by 2,762.11 km2 in a study area of 21,911.39 km2. The fragmentation pattern in the landscape presented spatial differences between analysed agro-ecological zones, with better conservation status of native grasslands in the Flooding Pampa. The identification of this spatial pattern should promote policies of biodiversity conservation and sustainable management of this landscape.
关键词：Grassland;Land-cover change;Landscape pattern;Argentina;Flooding Pampa;Inland Pampa;Landsat.