Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 2060.
  1. Library Resource

    Volume 9 Issue 9

    Publication évaluée par des pairs
    septembre, 2020
    Chine, Fédération de Russie, États-Unis d'Amérique

    China is one of the most rapidly urbanising countries in the world. In recent years, it has experienced enormous environmental changes, as well as a loss of landscape identity. This paper aims to explore the concept of landscape identity in the context of the overwhelming urbanisation in China. It develops a conceptual framework on landscape identity from different dimensions. Factors are also identified that drive the urban changes with regard to the landscape identity that develops over time.

  2. Library Resource

    Volume 9 Issue 9

    Publication évaluée par des pairs
    septembre, 2020
    Chine, Norvège, Fédération de Russie, États-Unis d'Amérique

    With the rapid development of urbanization and industrialization, China’s metropolitan areas have experienced dramatic transitions of land use, which has had a profound impact on the eco-environment. Accordingly, the contradictions of regional production, living, and ecological spaces have intensified. In this context, analysis of the dynamics of regional production–living–ecological (PLE) spaces has become an important entry point for studying land use transition and its eco-environmental effects, by constructing a classification system of PLE land functions.

  3. Library Resource

    Volume 9 Issue 9

    Publication évaluée par des pairs
    septembre, 2020
    Chine, Fédération de Russie, États-Unis d'Amérique

    Ecological or environmental compensation policies are usually designed with multiple policy objectives such as protecting the ecological environment and promoting farmers’ livelihoods, but in the enforcement process, there are often inconsistencies between realistic choices and policy objectives.

  4. Library Resource

    Volume 9 Issue 9

    Publication évaluée par des pairs
    septembre, 2020
    Chine, Norvège, Fédération de Russie, États-Unis d'Amérique

    Human land use intensity affects the surface energy balance by changing the biogeophysical parameters. This study used Moderate Resolution Imaging Spectroradiometer remote sensing data and surface energy balance algorithms to quantify changes in surface energy budgets corresponding to changes in land use in Beijing from 2000 to 2015. Land use was reclassified by considering land use intensity. The difference in the latent heat flux (LE) and net radiation (Rn) (LE−Rn) expressed the warming or cooling effect.

  5. Library Resource

    Volume 9 Issue 9

    Publication évaluée par des pairs
    septembre, 2020
    Chine, Fédération de Russie, États-Unis d'Amérique

    Over-fertilization has caused serious environmental problems and high agricultural production costs at the household level in China. This study attempts to analyze the effects of grape growers’ fertilization knowledge and technologies on their over-fertilization behavior. Using survey data collected from 235 grape growers planting a particular grape (the “Hutai No.

  6. Library Resource

    Volume 9 Issue 9

    Publication évaluée par des pairs
    septembre, 2020
    Chine

    To investigate the rural labor transfer effects of China’s Collective Forestland Tenure Reform (CFTR), we employ binary probit models by using survey data of 694 households from China’s northern collective forest areas. The results reveal that the improved property rights, including rights for forestland use, disposition and beneficiaries, and refined tenure security under the CFTR generally have caused an increase in rural household labor transfer to the nonfarm sector.

  7. Library Resource

    Volume 9 Issue 9

    Publication évaluée par des pairs
    septembre, 2020
    Chine, Fédération de Russie, États-Unis d'Amérique

    The rapid growth of China’s economy since the reform in 1978 should be largely attributed to urbanization. Nonetheless, in terms of farmland productivity, urbanization may lead to perverse incentives and thus threaten food security. On the one hand, the requisition–compensation balance of farmland (RCBF) policy could reduce farmland productivity because of a “superior occupation and inferior compensation”; on the other hand, urbanization promotes the transfer of the younger labor force and thus reduces the productivity of the agricultural labor force.

  8. Library Resource

    Volume 9 Issue 9

    Publication évaluée par des pairs
    septembre, 2020
    Chine

    Worldwide urban spatial expansion has become a hot topic in recent decades. To develop effective urban growth containment strategies, it is important to understand the spatial patterns and driving forces of urban sprawl. By employing a spatial analysis method and land use survey data for the years 1996–2010, this study explores the effects of hierarchical administrative centers on the intensity and direction of urban land expansion in a Beijing municipality.

  9. Library Resource

    Volume 9 Issue 9

    Publication évaluée par des pairs
    septembre, 2020
    Chine

    Guishui River Basin in northwestern Beijing has ecological significance and will be one of the venues of the upcoming Beijing Winter Olympic Games in 2022. However, accelerating climate change and human disturbance in recent decades has posed an increasing challenge to the sustainable use of water in the basin. This study simulated the runoff of the Guishui River Basin using the Soil and Water Assessment Tool (SWAT) model to reveal the spatio-temporal variations of runoff in the basin and the impacts of climate change and human activities on the runoff changes.

  10. Library Resource

    Volume 9 Issue 9

    Publication évaluée par des pairs
    septembre, 2020
    Chine, Fédération de Russie, États-Unis d'Amérique

    As an important component to quantify the carbon budget, accurate evaluation of terrestrial gross primary production (GPP) is crucial for large-scale applications, especially in dryland ecosystems. Based on the in situ data from six flux sites in northwestern China from 2014 to 2016, this study compares seasonal and interannual dynamics of carbon fluxes between these arid and semi-arid ecosystems and the atmosphere.

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