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Resultados de la búsqueda

Mostrando ítems 1 a 9 de 19.
  1. Library Resource
    Publicación revisada por pares
    Mayo, 2016
    Ucrania, Australia, Nueva Zelandia, Asia, África, América Septentrional

    It studies the preconditions of creation, functioning of farms in Ukraine and foreign countries. In the course of the study revealed that over the years 1990-2015, the number of farms increased from 332 to 54 302 is 915, 40 thousand hectares of land. For a specified period on one farm had between 12.0 to 78.8 ha of agricultural land (the most notable growth occurred in the period from 1990-1995, he was almost 100 times).
    Despite this, farming did not become efficient producers of agricultural products.

  2. Library Resource
    Publicación revisada por pares
    Agosto, 2017
    Ucrania, África, América central, Asia, América del Sur

    At the present stage of human development, food is one of the most acute problems. Over the past 30-40 years, the growth rate of population in many countries of the world is ahead of the growth rate of agricultural production, which leads to acute shortage of food. This is especially true of developing countries, which accounts for the overwhelming majority of the population of the planet that is under-eating and starving. According to FAO (Food and Agriculture Organization), in the world now about half a billion people are constantly hungry and twice asleep.

  3. Library Resource
    Publicación revisada por pares
    Marzo, 2017
    Kenya

    Inadequacies in the indication of cultural ecosystem services (CES) are a hindrance in assessing their
    comprehensive impacts on human wellbeing. Similarly, uncertainties about the quantity and quality of
    CES, in real time and space, have hampered the ability of resource managers to precisely take responsive
    management actions. The aim of the study is to demonstrate, how CES indicators can be identified and
    qualified in order to link CES to human wellbeing, and to integrate them into the ‘ecosystem services cascade’

  4. Library Resource
    Publicación revisada por pares
    Diciembre, 2016
    Sudáfrica, África austral

    Invasive alien plants have a negative impact on ecosystem goods and services derived from ecosystems. Consequently, the aggressive spread of invasive alien plants (IAPs) in the river catchments of South Africa is a major threat to, inter alia, water security. The Olifants River catchment is one such a catchment that is under pressure because of the high demand for water from mainly industrial sources and unsustainable land-use, which includes IAPs. This study considered the cost-effectiveness of clearing IAPs and compared these with the cost of a recently constructed dam.

  5. Library Resource
    Publicación revisada por pares
    Julio, 2014
    Etiopía

    This study explores the influence of incidence of poverty and plot-level perception of soil degradation, on soil conservation behaviour of small subsistence farmers in the central highlands of Ethiopia. The study results confirm that poverty in assets significantly reduces the probability of soil-conservation efforts as measured by use of stone/soil bund structures in the highlands of Ethiopia.

  6. Library Resource
    Publicación revisada por pares
    Abril, 2015
    África

    The greater the benefit derived from using a piece of land for any particular purpose the higher the price the prospective user is willing to pay.  The demand for land is thus a reflection of the utility derived from its use by current or potential users.  The ability to compete for sites depends on whether they have the means to benefit from accessibility and complementarity within the urban framework. Conventional theory states that productivity determines urban rent, which is the highest at the place of maximum accessibility, i.e. the central business district (CBD).

  7. Library Resource
    Publicación revisada por pares
    Agosto, 2012
    Sudáfrica, África austral

    This article explores strategies for engaging geographically fragmented urban communities as active participants in conceptually re-mapping their former localities. It looks in detail at the ongoing Retracing Salford project in Salford, UK, which employs the use of everyday objects and oral histories to engage and enable former residents to reconnect with their recently demolished neighbourhoods and each other. The project also seeks to document an urban working class history largely overlooked by the large-scale institutions.

  8. Library Resource
    Publicación revisada por pares
    Agosto, 2012
    Sudáfrica, África austral

    This article explores strategies for engaging geographically fragmented urban communities as active participants in conceptually re-mapping their former localities. It looks in detail at the ongoing Retracing Salford project in Salford, UK, which employs the use of everyday objects and oral histories to engage and enable former residents to reconnect with their recently demolished neighbourhoods and each other. The project also seeks to document an urban working class history largely overlooked by the large-scale institutions.

  9. Library Resource
    Publicación revisada por pares
    Diciembre, 2016
    Sudáfrica, África austral

    Ecosystem-based adaptation (EbA) is increasingly being promoted as a cost-effective means of adaptation to climate change. However, in spite of considerable international press, there is still little evidence to substantiate this claim. This study proposes a method through which the cost-effectiveness of EbA strategies can be evaluated against alternative adaptation options, and contributes to South African literature on the subject.

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