期刊名称：Cuadernos de Geografía: Revista Colombiana de Geografía
印刷版ISSN：2256-5442
出版年度：2019
卷号：28
期号：1
页码：102-120
DOI：10.15446/rcdg.v28n1.67969
出版社：Universidad Nacional de Colombia, Facultad de Ciencias Humanas, Departamento de Geografía
摘要：Rural areas are exposed to forest fragmentation processes due to the development of environmentally unsustainable agricultural activities. This article studies the forest fragmentation and connectivity in an agricultural sub-basin to the northwest of the Central Valley of Costa Rica. By using GIS applications, a connectivity network was established based on vegetation linkages from the drainage network. Results showed that fragmentation of the sub-basin is differential, depending on the distribution and intensity of land use. Thus, the higher areas feature a greater coverage and a greater continuity of the forest, while in the lower areas, the remnant vegetation is located almost exclusively along the river banks. The uses generating the greatest fragmentation are horticultural crops, followed by grasses, grasses with dispersed trees, and, to a lesser extent, urban uses, generally found along communication routes.
关键词：(es_ES) conectividad; cuenca hidrográfica; fragmentación de bosques; recurso hídrico; subcuenca del río Tapezco
