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Mostrando ítems 1 a 9 de 4542.
  1. Library Resource

    Volume 8 Issue 12

    Publicación revisada por pares
    Diciembre, 2019
    Canadá, Europa

    Climate change may increase the importance of agriculture in the global Circumpolar North with potentially critical implications for pristine northern ecosystems and global biogeochemical cycles. With this in mind, a global online survey was conducted to understand northern agriculture and farmers’ perspective on environmental change north of 60° N.

  2. Library Resource

    Volume 8 Issue 12

    Publicación revisada por pares
    Diciembre, 2019
    Jordania

    The character of Amman, Jordan, as the "City of Waters"—referring to the abundance of water flowing in its known stream—has faded away because of the municipal policy to cover the stream in the 1960s which gradually changed the ecological character. This paper traces and explores the impacts of stream-coverage policy on the city character, morphology and land use changes. The purpose is to understand how an engineered problem-solving policy changed physical and perceptive factors and affected the character of the city.

  3. 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.

  4. Library Resource

    Volume 9 Issue 1

    Publicación revisada por pares
    Enero, 2020
    China

    Following the massive expansion of rubber plantations in China, considerable research has been conducted on the impact of these landscape changes. The general consensus is that there have been negative impacts on the environment and positive impacts on local economies. However, since rubber prices dropped after 2011, the economic benefit to the local people is challenged and the impact on the local people and communities remains unclear.

  5. Library Resource

    Volume 9 Issue 1

    Publicación revisada por pares
    Enero, 2020
    Global

    The change in land use during the process of urbanization affects surface runoff and increases flood risk in big cities. This study investigated the impact of land use change on surface runoff in Beijing’s central area during the period of rapid urbanization from 1984 to 2019. Land use maps of 1984, 1999, 2009, and 2019 were generated by image classification of Landsat images. Surface runoffs were calculated with the Soil Conservation Service curve number (SCS-CN) model. Correlation analysis was used to identify the dominant factor of land use change affecting surface runoff.

  6. Library Resource

    Volume 9 Issue 1

    Publicación revisada por pares
    Enero, 2020
    Brasil

    Growing domestic and international ethanol demand is expected to result in increased sugarcane cultivation in Brazil. Sugarcane expansion currently results in land-use changes mainly in the Cerrado and Atlantic Forest biomes, two severely threatened biodiversity hotspots. This study quantifies potential biodiversity impacts of increased ethanol demand in Brazil in a spatially explicit manner. We project changes in potential total, threatened, endemic, and range-restricted mammals’ species richness up to 2030.

  7. Library Resource

    Volume 9 Issue 1

    Publicación revisada por pares
    Enero, 2020
    Global

    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.

  8. Library Resource

    Volume 9 Issue 1

    Publicación revisada por pares
    Enero, 2019
    Nepal

    Outmigration has become a key livelihood strategy for an increasing number of rural households, which in turn has a profound effect on land management. Studies to date have mainly focused on migrant households, and there is limited literature on the differences in land management practices of migrant and nonmigrant households. This article drew on a current study to explore how outmigration affects land management practices in the context of rapidly changing rural communities and economics in the middle hills of Nepal.

  9. 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.

  10. News
    Foto: Marcos Morandi.
    3 Enero 2020
    América Latina y el Caribe
    América del Sur
    Brasil
    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.
     

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