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- Ehsani, Amir Houshang, et al.
(författare)
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Artificial Neural Networks for Landscape Analysis of the Biosphere Reserve “Eastern Carpathians” with Landsat ETM+ and SRTM data
- 2008
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Ingår i: The Problems of Landscape Ecology. - 1899-3850. ; 20, s. 171-183
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Tidskriftsartikel (refereegranskat)abstract
- In this paper we propose a semi-automatic method for landscape analysis with both spectral and morphometric constituents. SRTM data are used to calculate first derivatives (slope) and second derivatives of elevation such as minimum curvature, maximum curvatures and cross-sectional curvature by fitting a bivariate quadratic surface with a window size 9 by 9. Together with multi-spectral remote sensing data like Landsat 7 ETM+ with 28.5 meter raster elements, these data provide comprehensive information for the analysis of the landscape in the study area. Unsupervised neural network algorithm –Self Organizing map- divided all input vectors into inclusive and exhaustive classes on the basis of similarity between attribute vectors. Morphometric analysis, spectral signature analysis, feature space analysis are used to assign semantic meaning to the classes as landscape elements according to form, cover and slope e.g. deciduous forest on ridge (convex landform) with steep slopes.
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| 2. |
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| 3. |
- Mizgajski, Andrzej, et al.
(författare)
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Implementation of landscape ecological knowledge : Achievements and challenges
- 2010
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Ingår i: The Problems of Landscape Ecology. - Poznan : Adam Mickiewicz University Press. - 1899-3850. ; XXVIII, s. 9-13
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Tidskriftsartikel (refereegranskat)abstract
- This paper gives a synthetic presentation of problems related to the practical application of results in land-scape ecological studies. The diagnoses presented are based on the findings of ILECO2010 symposium, which was devoted to this. The assessment considered several aspects, which determine the possibility to apply the landscape ecological knowledge. These include spatial planning, spatial management, issues related to the efficiency assess-ment of actions taken and collection of data essential for the decision-making process. Individual problems were complemented with conclusions of a general nature.
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