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Resultados de la búsqueda

Mostrando ítems 1 a 9 de 1165.
  1. Library Resource

    Volume 9 Issue 1

    Publicación revisada por pares
    Enero, 2020
    Sri Lanka, Asia meridional

    Land use and land cover change (LULCC) are dynamic over time and space due to human and biophysical factors. Accurate and up-to-date LULCC information is a mandatory part of environmental change analysis and natural resource management. In Sri Lanka, there is a significant temporal gap in the existing LULCC information due to the civil war that took place from 1983 to 2009. In order to fill this gap, this study presents a whole-country LULCC map for Sri Lanka over a 25-year period using Landsat time-series imagery from 1993 to 2018.

  2. Library Resource

    Volume 9 Issue 1

    Publicación revisada por pares
    Enero, 2020

    Bays are some of the core areas for marine economic development. The South China Sea coast is one of the most developed and dynamic places in the Asia-Pacific. In this study, we focused on the large bays surrounding the South China Sea. The techniques of image segmentation and supervised classification as well as image interpretation were used to acquire land-use data of 41 bays from 1988 to 2018. Then, we quantified the intensity and pattern of land-use and land-cover change during the two periods.

  3. Library Resource

    Volume 9 Issue 1

    Publicación revisada por pares
    Enero, 2019
    Portugal, España

    This work analyzes the determinants associated with main land use/cover changes in the Iberian Peninsula during the 1990–2012 period using a decision tree model. Our main objective is to identify broad-scale patterns that associate the characteristics of geographic areas with the dominant land use/cover change process based on CORINE Land Cover (Coordination of Information on the Environment) and defined in a previously published work. Biophysical, structural and socioeconomic variables were considered as potentially explanatory of the dominant change process at municipal scale.

  4. News
    Foto: Marcos Morandi.
    3 Enero 2020
    América Latina y el Caribe
    América del Sur
    Após um dia tenso em Dourados, o conflito por terras que deixou três indígenas e um segurança feridos, terminou por volta das 18h desta sexta-feira (3). O segurança passou por cirurgia e está internado em estado grave no Hospital da Vida. Viatura do Corpo de Bombeiros e da imprensa chegaram a ser apedrejadas durante o conflito.
  5. Blog post

    Según el más reciente análisis del Grupo de Diálogo Rural en Colombia, las precarias condiciones de los municipios con cultivos de coca limitan considerablemente la cobertura en educación, salud, empleo y calidad de vida de 298.000 jóvenes rurales..

  6. Library Resource

    Volume 8 Issue 11

    Publicación revisada por pares
    Noviembre, 2019
    Namibia, Global

    The negative impact of the reduction of vegetation cover is already being felt in the Zambezi Region in northeastern Namibia. The region has been undergoing various land cover changes in the past decades. To understand the historical trend of vegetation cover (increase or decrease), we analyzed 8-km resolution Global Inventory Monitoring and Modeling Studies (GIMMS) from the Advanced Very High Resolution Radiometer (AVHRR) and 0.25° × 0.25° (resampled to 8 km) resolution Global Precipitation Climatology Center (GPCC). We used the Time Series Segmented Residual Trends (TSS-RESTREND) method.

  7. Library Resource

    Volume 8 Issue 10

    Publicación revisada por pares
    Octubre, 2019

    With increasing population growth, the Harare Metropolitan Province has experienced accelerated land use and land cover (LULC) changes, influencing the city’s growth. This study aims to assess spatiotemporal urban LULC changes, the axis, and patterns of growth as well as drivers influencing urban growth over the past three decades in the Harare Metropolitan Province. The analysis was based on remotely sensed Landsat Thematic Mapper and Operational Land Imager data from 1984–2018, GIS application, and binary logistic regression.

  8. Library Resource

    Volume 8 Issue 7

    Publicación revisada por pares
    Julio, 2019
    África occidental

    Climate and land use/cover changes are potential drivers of change in hydrology and water use. Incidences of these factors on Bandama hydrological basin and Kossou hydropower generation (1981–2016) in West Africa are assessed in this present work. Using Landsat products of United Stated Geological Survey, results show that water bodies areas and land use have increased by 1.89%/year and 11.56%/year respectively, whereas herbaceous savanna, savanna, forest and evergreen forest coverage have been reduced by 1.39%/year, 0.02%/year, 2.39%/year and 3.33%/year respectively from 1988 to 2016.

  9. Library Resource

    Volume 8 Issue 5

    Publicación revisada por pares
    Mayo, 2019
    Sierra Leona

    The last National Forest Inventory of Sierra Leone took place more than four decades ago in 1975. There appears to be no legal definition of “forest” in Sierra Leone and it is sometimes unclear whether reports are referring to the forest as a “land use” or a “land cover”.

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