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Article

Application of Fractal and Gray-Level Co-Occurrence Matrix Indices to Assess the Forest Dynamics in the Curvature Carpathians—Romania

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Research Center for Integrated Analysis and Territorial Management, University of Bucharest, 4-12, Regina Elisabeta Avenue, 030018 Bucharest, Romania
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Research Institute of the University of Bucharest (ICUB), 36-46 Mihail Kogălniceanu Avenue, 050107 Bucharest, Romania
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Faculty of Geography, University of Bucharest, 1, Nicolae Bălcescu Avenue, 010041 Bucharest, Romania
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GSRC-Medical Computing, QMnM-Quantitative Morphology and Nonlinear Methods, Medical University of Graz, 8010 Graz, Austria
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Laboratory of Cancer Cell Biology, Institute for Oncology and Radiology, Pasterova 14, 11000 Belgrade, Serbia
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Department of Human and Social Sciences, University of Sassari, Piazza Università 21, 07100 Sassari, Italy
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Department of Geosciences and Natural Resource Management, University of Copenhagen, Oster Voldgade 10, DK-1350 Copenhagen, Denmark
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Author to whom correspondence should be addressed.
Sustainability 2019, 11(24), 6927; https://doi.org/10.3390/su11246927
Received: 12 October 2019 / Revised: 29 November 2019 / Accepted: 1 December 2019 / Published: 5 December 2019
(This article belongs to the Special Issue Dealing with Environmental Conflicts)
The mountain ecosystems face significant damage from deforestation and environmental forest changes. We investigated the evolution of tree types of cover areas, deforested areas and total deforested areas from Curvature Carpathians using Gray-Level Co-occurrence Matrix and fractal analysis. The forest dynamics mapping was one of the main objectives of this study and it was carried out using multiple fractal and GLCM indices. We approached the analysis of satellite forest images by calculation of four fractal indices such as Pyramid dimension, Cube Counting Dimension, Fractal Fragmentation-Compaction Index and Tug-of-War lacunarity. We also calculated fractal dimension because it is an index of complexity comparing how the detail in a pattern changes with the scale at which it is measured. Fractal dimension is useful for estimation of irregularity or roughness of fractal and natural objects that do not conform to Euclidian geometry. While the fractal dimension quantifies how much space is occupied, the Tug-of-War lacunarity complements fractal dimension with its ability to quantify how space is occupied. Analysis was further supplemented by the Gray-Level Co-occurrence Matrix analysis because it quantifies spatial probability distributions of gray level values between pixel pairs within an image. The calculated Gray-Level Co-occurrence Matrix features included Angular Second Moment, Contrast, Correlation, Inverse Difference Moment and Entropy. Such comprehensive analysis has the advantage of combining fractal analysis that extracts quantitative information about the morphological complexity of the image with the spatial distribution of the gray pixel intensities as calculated by the co-occurrence features provided by Gray-Level Co-occurrence Matrix. Evolution of deforested areas, expansion of agricultural land and the increased demand for quality timber have affected the forests ecosystems and, the regional sustainable development of local communities. View Full-Text
Keywords: deforestation; forest changes; GLCM analysis; fractal analysis deforestation; forest changes; GLCM analysis; fractal analysis
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MDPI and ACS Style

Ciobotaru, A.-M.; Andronache, I.; Ahammer, H.; Radulovic, M.; Peptenatu, D.; Pintilii, R.-D.; Drăghici, C.-C.; Marin, M.; Carboni, D.; Mariotti, G.; Fensholt, R. Application of Fractal and Gray-Level Co-Occurrence Matrix Indices to Assess the Forest Dynamics in the Curvature Carpathians—Romania. Sustainability 2019, 11, 6927. https://doi.org/10.3390/su11246927

AMA Style

Ciobotaru A-M, Andronache I, Ahammer H, Radulovic M, Peptenatu D, Pintilii R-D, Drăghici C-C, Marin M, Carboni D, Mariotti G, Fensholt R. Application of Fractal and Gray-Level Co-Occurrence Matrix Indices to Assess the Forest Dynamics in the Curvature Carpathians—Romania. Sustainability. 2019; 11(24):6927. https://doi.org/10.3390/su11246927

Chicago/Turabian Style

Ciobotaru, Ana-Maria, Ion Andronache, Helmut Ahammer, Marko Radulovic, Daniel Peptenatu, Radu-Daniel Pintilii, Cristian-Constantin Drăghici, Marian Marin, Donatella Carboni, Gavino Mariotti, and Rasmus Fensholt. 2019. "Application of Fractal and Gray-Level Co-Occurrence Matrix Indices to Assess the Forest Dynamics in the Curvature Carpathians—Romania" Sustainability 11, no. 24: 6927. https://doi.org/10.3390/su11246927

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