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Showing items 1 through 9 of 141.
  1. Library Resource
    Journal Articles & Books
    December, 2011
    China

    Among other issues, the degrading environmental and ecological situations, the low performance scrambled city form and the loss of cultural identity in Beijing City have proved that the conventional ‘population projection-urban infrastructure-land use’ approach and the architectural urbanism approach to urban growth planning failed to meet the challenges of swift urbanisation and sustainability issues in China in general, and Beijing in particular.

  2. Library Resource
    Journal Articles & Books
    December, 2011
    China

    Bioenergy developed from energy plants will play a more and more important role in future energy supply. Much attention has been paid to energy plants in recent years. As China has fairly limited cultivated land resources, the bioenergy development may mainly rely on the exploitation of marginal land. This study focused on the assessment of marginal land resources and bio-fuel potential in China using newly acquired data and Geographic Information System (GIS) techniques.

  3. Library Resource
    Journal Articles & Books
    January, 2011
    China

    Land is the fundamental income sources for farmers. However, farmers stay in disadvantaged state in the political, economic and social aspects. Their land is exploited and occupied, which facilitates the rapid development of economy, as well as brings the gap between the poor and the rich and the inharmonious disputes.

  4. Library Resource
    Journal Articles & Books
    December, 2011
    China

    The suitable spectral mode in remote sensing is often desirable to facilitate the inversion of ecological environment and landscape. This paper put forward an optimizing model based on variable precision rough sets (VPRS) for the land cover discrimination in wetland inventory. In the case study of Lake Baiyangdian which has important ecological functions to the northern China, this model is established successfully according to the domain-experts knowledge. The procedure is as follows.

  5. Library Resource
    Journal Articles & Books
    December, 2011
    China

    Water samples were collected for determination of dissolved trace metals in 56 sampling sites throughout the upper Han River, China. Multivariate statistical analyses including correlation analysis, stepwise multiple linear regression models, and principal component and factor analysis (PCA/FA) were employed to examine the land use influences on trace metals, and a receptor model of factor analysis-multiple linear regression (FA-MLR) was used for source identification/apportionment of anthropogenic heavy metals in the surface water of the River.

  6. Library Resource
    Journal Articles & Books
    July, 2011
    China

    In view of the problems faced by implementation model of cooperated rural households in terms of limited use scope, insufficient governmental policy and one-sided participation of rural households, the comprehensive evaluation index system of the feasibility of implementation model of cooperated rural households is established. From the macro-perspective, seven indexes including urban land use, township economic development stage, urbanization and township enterprise structure are selected.

  7. Library Resource
    Journal Articles & Books
    December, 2011
    China

    Biological invasion represents one of the most serious threats to biodiversity, and invasion ecology research has become one of the central issues of contemporary environmental science. However, the relative role of soil development as correlated with succession in influencing variation in invasion resistance has seldom been examined. We hypothesized that the invasion potential of exotic plants depends on soil conditions. In this study, we explored variation among soils of three forest types in their resistance to invasion by Mikania micrantha H.B.K.

  8. Library Resource
    Journal Articles & Books
    December, 2011
    China

    Soil erosion in terrestrial ecosystems, as an important global environmental problem, significantly impacts on environmental quality and social economy. By protecting soil from wind and water erosion, terrestrial ecosystems supply human beings with soil erosion control service, one of the fundamental ecosystem services that ensure human welfare. The Loess Plateau was one of the regions in the world that suffered from severe soil erosion. In the past decades, restoration projects were implemented to improve soil erosion control in the region.

  9. Library Resource
    Journal Articles & Books
    December, 2011
    China

    Population is a key indicator of socioeconomic development, urban planning and environmental protection, particularly for developing countries like China. But, census data for any given area are neither always available nor adequately reflect the internal differences of population. The authors tried to overcome this problem by spatializing the population across China through utilizing integer night-time imagery (Defense Meteorological Satellite Program/Operational Linescan System, DMSP/OLS) and land-use data.

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