Patrones de cambio en la zona de la presa Marte R. Gómez, Tamaulipas, México

One of the advantages of land cover monitoring by means of satellite images is to have several observations of a specific place. That gives us the possibility of detecting land changes. This paper exemplifies the use of change detection techniques and illustrates how the combination of digital image...

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Main Author: Gabriela Gómez Rodríguez
Format: Article
Language:English
Published: Universidad Nacional Autónoma de México 1997-06-01
Series:Investigaciones Geográficas
Online Access:http://www.investigacionesgeograficas.unam.mx/index.php/rig/article/view/59056
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spelling doaj-1d6df42af73141b08ae754454935da972020-11-24T21:09:06ZengUniversidad Nacional Autónoma de MéxicoInvestigaciones Geográficas0188-46112448-72791997-06-0113510.14350/rig.5905651010Patrones de cambio en la zona de la presa Marte R. Gómez, Tamaulipas, MéxicoGabriela Gómez RodríguezOne of the advantages of land cover monitoring by means of satellite images is to have several observations of a specific place. That gives us the possibility of detecting land changes. This paper exemplifies the use of change detection techniques and illustrates how the combination of digital image information and ancillary data in a geographic information system can give us a much clear idea of the ecological importance of transformations. A semiarid zone, in the Tamaulipas and Nuevo León States was selected. This area, south of the US border, is part of the San Juan River basin. The change image was obtained from the vegetation index difference of 3 Landsat MSS images. This change image was combined with digital land use maps to produce the change distribution. This procedure flags a marked decrease in the extent of the water bodies, an increase in vegetation cover in areas of temporal agriculture and grassland, and the little variation of the forested areas. With the aid of the elevation model it was possible to discriminate the change in areas of high water erosion risk. The loss of the vegetation cover in areas of high slope is not frequent.http://www.investigacionesgeograficas.unam.mx/index.php/rig/article/view/59056
collection DOAJ
language English
format Article
sources DOAJ
author Gabriela Gómez Rodríguez
spellingShingle Gabriela Gómez Rodríguez
Patrones de cambio en la zona de la presa Marte R. Gómez, Tamaulipas, México
Investigaciones Geográficas
author_facet Gabriela Gómez Rodríguez
author_sort Gabriela Gómez Rodríguez
title Patrones de cambio en la zona de la presa Marte R. Gómez, Tamaulipas, México
title_short Patrones de cambio en la zona de la presa Marte R. Gómez, Tamaulipas, México
title_full Patrones de cambio en la zona de la presa Marte R. Gómez, Tamaulipas, México
title_fullStr Patrones de cambio en la zona de la presa Marte R. Gómez, Tamaulipas, México
title_full_unstemmed Patrones de cambio en la zona de la presa Marte R. Gómez, Tamaulipas, México
title_sort patrones de cambio en la zona de la presa marte r. gómez, tamaulipas, méxico
publisher Universidad Nacional Autónoma de México
series Investigaciones Geográficas
issn 0188-4611
2448-7279
publishDate 1997-06-01
description One of the advantages of land cover monitoring by means of satellite images is to have several observations of a specific place. That gives us the possibility of detecting land changes. This paper exemplifies the use of change detection techniques and illustrates how the combination of digital image information and ancillary data in a geographic information system can give us a much clear idea of the ecological importance of transformations. A semiarid zone, in the Tamaulipas and Nuevo León States was selected. This area, south of the US border, is part of the San Juan River basin. The change image was obtained from the vegetation index difference of 3 Landsat MSS images. This change image was combined with digital land use maps to produce the change distribution. This procedure flags a marked decrease in the extent of the water bodies, an increase in vegetation cover in areas of temporal agriculture and grassland, and the little variation of the forested areas. With the aid of the elevation model it was possible to discriminate the change in areas of high water erosion risk. The loss of the vegetation cover in areas of high slope is not frequent.
url http://www.investigacionesgeograficas.unam.mx/index.php/rig/article/view/59056
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