Prospectiva territorial aplicando teledetección y evaluación multicriterioEscenarios de cambio en la cuenca del río Sabinal (Tuxtla Gutiérrez, Chiapas, México)

Abstract

The planning and territorial ordering require a good physicalenvironmental diagnosis and large inputs of socioeconomic information; in addition to using adequate tools and methods to analyze, summarize and present information, and guide appropriate decision making. Remote sensing provides a very valuable multi-temporal view of the territory: the thematic information that emerges from the satellite images complements the environmental and socioeconomic data stored in other formats. The Multi-Criteria Evaluation (EMC) includes a set of techniques to assist in the proper decision-making. The GIS allow us to take advantage of and complement all this information, showing the features of the territory in a set of cartographic images that can be superimposed and operate algebraically to find and show new features. Taking as a study area the Sabinal River Basin, this paper presents a methodology that integrates GIS, Remote Sensing and EMC and that can be used to prospectively analyze mediumsized urban-rural basins of the Southeast region of Mexico. From a Landsat image of 2014, a map of land cover was generated and, using available vector files, a map of land units was generated. With these inputs, taking into account the trends of population growth and urban sprawl, scenarios of change in land cover were generated by the year 2030