Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 657.
  1. Library Resource
    janvier, 2002
    Chine

    Looks at the allocation of land for specific purposes in the integrated land use plans that have come into effect across China since 1998..The paper: presents an analysis of the development of policies on national land use planning since the promulgation of the first Land Law in 1986.

  2. Library Resource
    Chine

    The objective of the Shanxi Coalbed Methane Development and Utilization Project for China is to develop a resettlement action plan for the people affected by the project to guarantee they can benefit from the project, improve their living standards or at least restore their living standards after the project is completed. The project will affect 14 village groups in 8 administrative villages in Zhengzhuang town and Duanshi town in Qinshui county.

  3. Library Resource
    Articles et Livres
    décembre, 2011
    Chine

    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.

  4. Library Resource
    Articles et Livres
    décembre, 2016
    Chine

    Soil erosion along with soil particles and nutrients losses is detrimental to crop production. We carried out a 5-year (2010 to 2014) study to characterize the soil erosion and nitrogen and phosphorus losses caused by rainfall under different fertilizer application levels in order to provide a theoretical evidence for the agricultural production and coordinate land management to improve ecological environment. The experiment took place under rotation cropping, winter wheat-summer maize, on a 15° slope purple soil in Chongqing (China) within the Three Gorges Region (TGR).

  5. Library Resource
    Articles et Livres
    décembre, 2014
    Chine

    Chongqing Municipality, located on the upper reaches of the Yangtze River, is one of China’s four largest megacities, comparable with Shanghai, Beijing, and Tianjin. In recent years, Chongqing and its surroundings have been experiencing severe environmental problems, such as urbanization, pollution, and deforestation, due to the rapid economic development of China’s inland region.

  6. Library Resource
    Articles et Livres
    décembre, 2013
    Chine

    AIMS: “Grain for Green Program” (GGP), i.e., re-conversion of cropland into forest or grassland, initiated by Chinese government has a profound impact on mitigating environmental degradation. The objectives of this study were to assess the changes of some soil properties during the processes of re-conversion from cropland to grassland over time in the semiarid steppe region of north China. METHODS: Two sites with different ages of re-conversion were selected for measurements of organic matter (SOM), total nitrogen (TN) and phosphorus (TP), bulk density (BD) and grain size distribution.

  7. Library Resource
    Documents et rapports de conférence
    septembre, 2011
    Chine

    Using a panel dataset from Zhejiang province in China over the period 1995-2002, wepropose a two-step estimation procedure to investigate the links between land lease activityand production efficiency. We find that the output elasticity with respect to land, the scaleeffect and the technical efficiency are higher for farmers involved in land-lease activities.

  8. Library Resource
    Articles et Livres
    décembre, 2013
    Chine

    Neo-liberal observers have frequently raised the red alert over insecure property rights in developing and emerging economies. Development would be at a crossroads: either institutional structure needs changing or it risks a full-fledged collapse. Yet, instead of focusing on the enigma between economic growth versus ‘perverse’ institutions, this contribution posits a functionalist argument that the persistence of institutions points to their credibility. In other words, once institutions persist they fulfill a function for actors.

  9. Library Resource
    Articles et Livres
    décembre, 2015
    Chine

    Various spectral data preprocessing approaches have been used to improve endmember extraction for urban landscape decomposition, yet little is known of their comparative adequacy for impervious surface mapping. This study tested four commonly used spectral data treatment strategies for endmember derivation, including original spectra, image fusion via principal component analysis, spectral normalization, and the minimum noise fraction (MNF) transformation.

  10. Library Resource
    Articles et Livres
    décembre, 2009
    Chine

    Taking Anqiu City, Shandong Province, China as an example, dynamic change of cultivated land resources of Anqiu City is analyzed from the aspects of the quantitative change of cultivated land resources, the structural change of cultivated land resources, and the regional differences of cultivated land change. Based on the land demand prediction of grain demand, the land demand prediction of economic crop production, and the land requirement goal, factors affecting the requirement goals of cultivated land resources are discussed.

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