Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 3922.
  1. Library Resource

    Sustainability

    Publication évaluée par des pairs
    janvier, 2018
    Chine

    To achieve sustainable rural development, it is necessary to simultaneously protect ecologically important land and efficiently use existing agricultural land. Land use functions (LUFs) are widely used to assess regional sustainable development. Guyuan is located in a typical hilly and gully region of western China, with ecologically fragile land. Rural land transfer (RLT) has been advocated to prevent abandonment of agricultural land and promote rational, effective utilization of the land.

  2. Library Resource

    Sustainability

    Publication évaluée par des pairs
    janvier, 2018
    Global

    Cultivated land is an important carrier of grain production, and scientific assessing of cultivated land productivity is of great significance to ensure food security. This paper assessed the overall productivity of cultivated land in Yuanjiang city from the perspectives of quantitative structure, spatial distribution and correlation with national land use. We applied statistical and GIS (geographic information system) spatial analysis methods to 16 secondary indicators of productivity.

  3. Library Resource

    Sustainability

    Publication évaluée par des pairs
    janvier, 2018
    Argentine

    The livestock sector can be a major contributor to the mitigation of greenhouse gas (GHG) emissions. Within the sector, beef production produces the largest proportion of the livestock sector’s direct emissions. The objective of this study was to assess the on-farm GHG emissions in semi-arid rangelands in Argentina and to identify the relationship between emissions and current farm management practices. A survey recorded detailed information on farm management and characteristics.

  4. Library Resource

    Sustainability

    Publication évaluée par des pairs
    janvier, 2018
    Global

    Outsourcing, as a productive service, has been widely adopted in industrial production and international trade but less applied in agricultural management. With the advancement of agricultural labor division and specialization, outsourcing is becoming one of the most sustained trends in concurrent business.

  5. Library Resource

    Sustainability

    Publication évaluée par des pairs
    janvier, 2019
    Chine

    The quality of cultivated land has been seriously degraded due to the overuse of chemical fertilizer in China. Land conservation technologies (LCTs) have been proven to effectively address land degradation and improve land productivity. In this study, a multivariate probit model is applied to empirically analyze the correlation effects and determinants of the application of LCTs application using cross-sectional data collected on 690 large-scale grain producers from the Jiangsu and Jiangxi provinces in the middle and lower reaches of the Yangtze River.

  6. Library Resource

    Sustainability

    Publication évaluée par des pairs
    janvier, 2019
    Espagne

    The cultivation of bioenergy crops could be considered as sustainable; however, its use in fertile lands could conflict with food production. The general purpose of this study is to identify areas where traditional food crops are not economically sustainable, but where they could be substituted by energy crops without changing the land use in Spain. We studied the profit margin of the main crops of the country, which are wheat (Triticum aestivum L.) and barley (Hordeum vulgare L.), the spatial location of the growing areas, and the biophysical constraints.

  7. Library Resource

    Sustainability

    Publication évaluée par des pairs
    janvier, 2019
    Chine

    Food security is the basis of social stability and development. Maintaining sufficient amounts of arable land is essential for China’s food security. In this paper, we consider the relationship between arable land demand to grain demand and production capacity. The changes in national population, grain production, and consumption from 2000 to 2015 are analyzed. Then, we forecast the respective possible changes in the future and accordingly forecast the arable land demand in different possible situations.

  8. Library Resource

    Sustainability

    Publication évaluée par des pairs
    janvier, 2019
    Global

    Soil nutrients are of great significance for maintaining forest growth and ensuring land productivity. A comprehensive scientific evaluation of soil fertility is helpful for sustainable forest management. There are many uncertainties in traditional evaluation methods, that is fuzziness and randomness, which often lead to a large deviation of the evaluation results. In order to comprehensively consider the fuzziness and randomness of soil fertility evaluation, the cloud model was introduced to evaluate the soil fertility of Chinese fir plantations.

  9. Library Resource

    Sustainability

    Publication évaluée par des pairs
    janvier, 2019
    Global

    Expansion of arid lands due to climate change, particularly in water stressed regions of the world can have severe implications on the economy and people’s livelihoods. The spatiotemporal trends in aridity, the shift of land from lower to higher arid classes and the effect of this shift on different land uses in Syria have been evaluated in this study for the period 1951–2010 using high-resolution monthly climate data of the Terrestrial Hydrology Research Group of Princeton University.

  10. Library Resource

    Sustainability

    Publication évaluée par des pairs
    janvier, 2020
    Global

    Bus Rapid Transit (BRT) has shown significant growth in recent years, particularly in developing countries because of its cost-effectiveness. However, empirical evidence on land-use and economic impacts of BRT is limited. This study measures the sustainable land-use transformation, urban density, and economic impact witnessed after the development of BRT. Spatial analysis shows that BRT has the potential to simulate land-use transformation, however, the extent of transformation is context-dependent. Population density has increased from 268 persons/acre to 299 persons/acre.

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