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- Title
Spatial analysis of deforestation in the northern part of the Guadalupe - Porce biological corridor.
- Authors
Martínez Forero, Camilo Enrique; Jaramillo Mazo, Esteban; Suárez Gómez, July Andrea
- Abstract
The study area is located in the northeast of the department of Antioquia, downstream of the Porce III dam, in the jurisdiction of the municipalities of Amalfi, Anorí, and Zaragoza and is part of what EPM calls the Guadalupe-Porce biological corridor. The area has a series of social dynamics such as an unusual population increase, activities such as mining, cattle ranching and illicit crops that result in high levels of deforestation. The spatial distribution patterns of deforestation hotspots were analyzed using Ripley's K function and a quadrat count for evaluation using the Chi-square test. The annual rate of deforestation was calculated and the probability of deforestation was modeled as a binary variable as a function of social and environmental covariates. Deforestation occurred throughout the study area with a gregarious spatial pattern, reaching a deforestation rate of -0.95%, with a total forest loss of 1820.78 ha between 2017-2022. The mining deforestation model was 79% correct at the same probability threshold, indicating a higher reliability of predictions. Slope is an influential factor in the probability of deforestation, associated with land productivity and forest accessibility. Distance to illicit crops, pastures and mining extraction zones were significant in the deforestation models evaluated, reflecting spatial dependence of these processes. Evidence was found of spatial heterogeneity in the main determinants of deforestation in the corridor caused by mining, conversion to pasture, or illicit crops. This project was developed within the framework cooperation agreement CT-2020-000469 between Empresas Públicas de Medellín E.S.P. and Universidad Nacional de Colombia - sede Medellín.
- Subjects
MEDELLIN (Colombia); ANTIOQUIA (Colombia : Dept.); ZARAGOZA (Spain); DEFORESTATION; SOCIAL dynamics; DAM failures; FORESTS &; forestry; UNIVERSIDAD Nacional de Colombia; RANCHING; RANCHES; FOREST productivity; CHI-squared test; CORRIDORS (Ecology)
- Publication
Revista Facultad Nacional de Agronomía Medellín, 2023, Vol 76, p15
- ISSN
0304-2847
- Publication type
Article