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Mostrando ítems 1 a 9 de 8331.
  1. Library Resource
    Artículos de revistas y libros
    Diciembre, 2016
    Serbia

    Important hydrological changes, or generally water resources changes, are being observed in Serbia, as well as in many other parts of the world. Many national and international projects and studies address climate change and its impact on water resources. Some focus solely on the impact of climate change, while others also assess the impact of land use changes and/or changes in human use of water.

  2. Library Resource
    Artículos de revistas y libros
    Agosto, 2010

    The article analyses the impact of agricultural trade liberalisation on economic growth as well as on the welfare of rural livelihoods in developing countries through technological transformation in the agricultural sector. The article, based on existing literature, considers the background and reasons for the policy shift in developing economies away from agricultural protection and toward trade liberalisation. It attempts to shed light on the debate over the distributional consequences resulting from trade liberalisation.

  3. Library Resource
    Documentos de conferencias e informes
    Mayo, 2010

    Policies for rural areas have become an important but complex policy field in the EuropeanUnion`s Common Agricultural Policy. In this paper we present a programming approach toanalyse the EAFRD budget allocation in Saxony-Anhalt. The approach has been interactivelydeveloped with representatives from our partner Ministry. The model is used to analyse anddiscuss optimisation potentials and the effects of reduced budget availabilities facing Saxony-Anhalt.

  4. Library Resource
    Documentos de conferencias e informes
    Diciembre, 2002
    Canadá

    The potential to meet global food demand fully exists through globaldevelopment of the high-technology (HT), high-intensity type of agriculture andfood processing system prevailing in developed countries. This systemunfortunately is also responsible for much natural resource degradation,environmental damage and ecological imbalance. Meantime the Earth's humanpopulation continues to grow, placing ever-increasing demand on global naturalresources, not only for food but also for living and recreational space.

  5. Library Resource
    Documentos de conferencias e informes
    Diciembre, 1999

    A contingent valuation survey was conducted in two diverse Oregon counties to estimate potential enrollment of framed or grazed land in a riparian buffer strip program. Landowner preferences for various program components were elicited and demonstrate the need to carefully design conservation incentives to encourage participation.

  6. Library Resource
    Documentos de conferencias e informes
    Abril, 2009
    Europa

    Recent decades have witnessed substantial losses in biodiversity in Europe, partlydriven by the ecological changes associated with intensification of agriculturalproduction. These changes have particularly affected biodiversity in marginal areas,such as the uplands in UK, since habitat change has been greater than in lowlandzones. Livestock farming is the main land use in these areas, and economic viabilityof farmers substantially relies on income coming from agricultural subsidies and agrienvironmentalpayments.

  7. Library Resource
    Artículos de revistas y libros
    Diciembre, 2013
    Irán

    Green spaces considered natural remnants in urban environments play a key role in promoting environmental quality and forming a sustainable city. Nowadays, development of urban spaces has taken a hasty growth. In the meanwhile, the natural green spaces are severely damaged. The current study aims at investigating the trend of changes in green space of Tabriz City, the second large industrial city in Iran, on the basis of landscape ecology principles. In order to prepare the land-cover maps, Landsat TM and IRS LISS-III of the years 1989 and 2006 were applied.

  8. Library Resource
    Artículos de revistas y libros
    Diciembre, 2008

    Humans have fundamentally altered global patterns of biodiversity and ecosystem processes. Surprisingly, existing systems for representing these global patterns, including biome classifications, either ignore humans altogether or simplify human influence into, at most, four categories. Here, we present the first characterization of terrestrial biomes based on global patterns of sustained, direct human interaction with ecosystems. Eighteen “anthropogenic biomes” were identified through empirical analysis of global population, land use, and land cover.

  9. Library Resource
    Artículos de revistas y libros
    Diciembre, 2011
    China

    Oil exploitation and road development have strongly fragmented the coastal landscapes, leading to profound ecological consequences. The dynamic relationships between oil wells, roads, and landscape fragmentation indices in the Yellow River Delta, China were explored. Oil wells, roads and land cover were mapped from TM images in 1992, 2000, 2006, and 2009, respectively. Changes and relationships were compared among three selected typical sections using linear regression models.

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