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J. L. Ohmann and T. A. Spies, “Regional Gradient Analysis and Spatial Pattern of Woody Plant Communi ties of Oregon,” Ecological Monographs, Vol. 68, No. 2, 1998, pp. 151182.

has been cited by the following article:

  • TITLE: Contribution of Topographically Explicit Descriptors of Landscape Measures for Application in the Vector Data Environment

    AUTHORS: Jomaa Ihab, Auda Yves

    KEYWORDS: Landscape Indices, Topography, Forest, Digital Terrain Model, Patch, Lebanon

    JOURNAL NAME: Journal of Geographic Information System, Vol.2 No.3, July 29, 2010

    ABSTRACT: Digital terrain models (DTMs) are not commonly used to integrate for landscape spatial analysis. Two dimensional patchcorridormatrix models are prototypes in landscape spatial ecology analysis. Previous studies have motivated ecologists to integrate terrain models in landscape analysis through 1) adjusting areas and distance calculations prior computing landscape indices; 2) designing new indices to capture topography and 3) searching the possible relationship between topographic characteristics and vegetation patterns. This study presents new indices called Relative number of Topographic Faces (RTF) and Simplicity of topographic Faces (STF) that can be easily computed in a GIS environment, capturing topographical features of landscapes. Digital terrain model was first prepared and topographic units were extracted and installed in computing the suggested indices. Mountainous and rugged topography in Lebanon was chosen on a forested landscape for the purpose of this study. The indices were useful in monitoring changes of topographic features on patch and landscape level. Both indices are ecologically useful if integrated in landscape pattern analysis, especially in areas of rugged terrains.