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Use of an Airborne Lidar System to Model Plant Species Composition and Diversity of Mediterranean Oak Forests; Utilización de un Sistema Lidar Aerotransportado para Modelar la Composición y Diversidad de Especies de Plantas en Bosques Mediterráneos de Roble
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Use of an Airborne Lidar System to Model Plant Species Composition and Diversity of Mediterranean Oak Forests; Utilización de un Sistema Lidar Aerotransportado para Modelar la Composición y Diversidad de Especies de Plantas en Bosques Mediterráneos de Roble
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Use of an Airborne Lidar System to Model Plant Species Composition and Diversity of Mediterranean Oak Forests; Utilización de un Sistema Lidar Aerotransportado para Modelar la Composición y Diversidad de Especies de Plantas en Bosques Mediterráneos de Roble
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Journal Article
Use of an Airborne Lidar System to Model Plant Species Composition and Diversity of Mediterranean Oak Forests; Utilización de un Sistema Lidar Aerotransportado para Modelar la Composición y Diversidad de Especies de Plantas en Bosques Mediterráneos de Roble
2012
Overview
Airborne lidar is a remote-sensing tool of increasing importance in ecological and conservation research due to its ability to characterize three-dimensional vegetation structure. If different aspects of plant species diversity and composition can be related to vegetation structure, landscape-level assessments of plant communities may be possible. We examined this possibility for Mediterranean oak forests in southern Portugal, which are rich in biological diversity but also threatened. We compared data from a discrete, first-and-last return lidar data set collected for 31 plots of cork oak (Quercus suber) and Algerian oak (Quercus canariensis) forest with field data to test whether lidar can be used to predict the vertical structure of vegetation, diversity of plant species, and community type. Lidar- and field-measured structural data were significantly correlated (up to r= 0.85). Diversity of forest species was significantly associated with lidar-measured vegetation height (R2= 0.50, p < 0.001). Clustering and ordination of the species data pointed to the presence of 2 main forest classes that could be discriminated with an accuracy of 89% on the basis of lidar data. Lidar can be applied widely for mapping of habitat and assessments of habitat condition (e.g., in support of the European Species and Habitats Directive [92/43/EEC]). However, particular attention needs to be paid to issues of survey design: density of lidar points and geospatial accuracy of ground-truthing and its timing relative to acquisition of lidar data. [PUBLICATION ABSTRACT]
Publisher
Blackwell Publishing Ltd
Subject
