Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 190.
  1. Library Resource

    Volume 7 Issue 2

    Publication évaluée par des pairs
    juin, 2018
    Mongolie

    This research summarizes land use and city expansion, as well as the dynamics of urbanization, over recent years in Ulaanbaatar city, Mongolia. The study applies fractal geometry to describe land uses in Ulaanbaatar city using a mathematical procedure and geographic information system (GIS) urban analysis, and measures urban sprawl using an index relation of area and perimeter. Land-use parcels’ shape, area perimeter relations, sprawl statement and geometry of city structure are considered. The research presents the growth of Ulaanbaatar city in two time series, 2000 and 2010.

  2. Library Resource

    Volume 7 Issue 2

    Publication évaluée par des pairs
    juin, 2018
    Chine

    Environmental conservation has developed significantly in China over the past 20 years, including more collaborative approaches and recent advances in establishing a national parks system. This study reviews the development of protected areas in the headwaters of the Yangtze River, drawing lessons from experiences of community development and co-management approaches. Community engagement and participation in developing localized plans for natural resource utilization and conservation have been critical features of successful ventures.

  3. Library Resource

    Volume 6 Issue 4

    Publication évaluée par des pairs
    décembre, 2017
    Japon, Mongolie

    Asian dust events are massive meteorological phenomena during which dust particles from Chinese and Mongolian deserts are blown into the atmosphere and carried by westerly winds across Northeast Asia. Recently, there has been steady increase in both the frequency and the severity of Asian atmospheric dust events. Concern has been expressed regarding the potential health hazards in affected areas. The principal nature of the damage associated with Asian dust events differs between the emission (sandstorm) and downwind (air pollution) regions.

  4. Library Resource

    Volume 6 Issue 4

    Publication évaluée par des pairs
    décembre, 2017
    Chine

    By using the difference-in-difference method and introducing control variables, this study investigates the effect of the household registration system (hukou) on farmers’ willingness to transfer rural housing land based on survey data of farmers in Chongqing and Wuhan, China.

  5. Library Resource

    Volume 6 Issue 3

    Publication évaluée par des pairs
    octobre, 2017
    Japon

    Urban residents’ health depends on green infrastructure to cope with climate change. Shrinking cities could utilize vacant land to provide more green space, but declining tax revenues preclude new park development—a situation pronounced in Japan, where some cities are projected to shrink by over ten percent, but lack green space. Could informal urban green spaces (IGS; vacant lots, street verges, brownfields etc.) supplement parks in shrinking cities?

  6. Library Resource

    Volume 6 Issue 3

    Publication évaluée par des pairs
    octobre, 2017
    Brésil, Chine

    The global food market makes international players intrinsically connected through the flow of commodities, demand, production, and consumption. Local decisions, such as new economic policies or dietary shifts, can foster changes in coupled human–natural systems across long distances. Understanding the causes and effects of these changes is essential for agricultural-export countries, such as Brazil. Since 2000, Brazil has led the expansion of soybean planted area—19 million hectares, or 47.5% of the world’s increase. Soybean is among the major crop commodities traded globally.

  7. Library Resource

    Volume 6 Issue 3

    Publication évaluée par des pairs
    octobre, 2017
    Japon

    This paper presents an evaluation of the multi-source satellite datasets such as Sentinel-2, Landsat-8, and Moderate Resolution Imaging Spectroradiometer (MODIS) with different spatial and temporal resolutions for nationwide vegetation mapping. The random forests based machine learning and cross-validation approach was applied for evaluating the performance of different datasets.

  8. Library Resource

    Volume 6 Issue 3

    Publication évaluée par des pairs
    octobre, 2017
    Brésil, Chine, États-Unis d'Amérique

    The telecoupling framework is an integrated concept that emphasises socioeconomic and environmental interactions between distant places. Viewed through the lens of the telecoupling framework, land use and food consumption are linked across local to global scales by decision-making agents and trade flows. Quantitatively modelling the dynamics of telecoupled systems like this could be achieved using numerous different modelling approaches.

  9. Library Resource
    Publication évaluée par des pairs
    Chine

    A collapsed incident occurred on 10 October 2016 in Wenzhou City, China, which resulted in 22 casualties and 6 injuries. Most of victims were migrant laborers (rural dwellers who move to urban for a temporary work), who rented apartments in these residential buildings, which were originally constructed by local rural residents. This case report investigates the collapsed incident as well as other similar previous incidents. From the perspectives of both social and technical aspects, this report analyzed the Chinese rural land use policy with relevant technical factors.

  10. Library Resource
    Publication évaluée par des pairs
    mars, 2015
    Mongolie

    The environment of the mountain-steppe-taiga of northern Mongolia is often characterized as marginal because of the high altitude, highly variable precipitation levels, low winter temperatures, and periodic droughts coupled with severe winter storms (known as dzuds). Despite these conditions, herders have inhabited this landscape for thousands of years, and hunter-gatherer-fishers before that. One way in which the risks associated with such a challenging and variable landscape are mitigated is through social networks and inter-family cooperation.

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