Résultats de la recherche | Land Portal

Résultats de la recherche

Showing items 1 through 9 of 657.
  1. Library Resource
    Articles et Livres
    avril, 2015
    Japon, Europe

    In recent years, wild boars (Sus scrofa) have caused growing damage to farm crops in a hilly and mountainous area of the Tohoku region. In particular, in designated evacuation zones following the accident at the Fukushima Dai-ichi nuclear power plant, there are growing concerns about the expanding range of wild boars and the resulting degradation of farmland.

  2. Library Resource
    Articles et Livres
    juillet, 2016
    Japon

    Japan's forest industry operates in mountainous regions rather than hilly areas. The forest road density is also low, and it is not easy to develop new roads and maintain them. Therefore, the work of moving about and transporting heavy loads over irregular mountain forest terrain far from roads is still hard labor performed by humans. Even today, a little technical development has been done to assist in this work.

  3. Library Resource
    Articles et Livres
    septembre, 2016
    Japon

    Large-scale rice farms are continuing to expand in scale in Japan. However, the increase in the number and extent of these cultivated areas is considered to be problematic. Given its nature, the JA Investment Agriculture Production Corporation, in particular, has difficulty with declining investment in areas that are considered to be less-favorable for rice cultivation.

  4. Library Resource
    Articles et Livres
    décembre, 2016
    Viet Nam, Laos, Cambodge, Chine

    After reviewing the main causes and effects of land degradation and erosion in the uplands of mainland Southeast Asia, this chapter presents several case studies of recent land-use changes governed by economic, political and institutional transitions, the expansion of teak and rubber tree plantations in northern Laos and southwest China, respectively, and of monocropping coffee in the Central Highlands of Viet Nam. We explain how these environmental disturbances are altering water and soil resources across different geographic scales, from the agricultural plot to the headwater catchment.

  5. Library Resource
    Articles et Livres
    mars, 2016
    Japon

    The purpose of this study is to clarify land improvement method of early collective housing sites developed by Japan housing corporation during 1960's-70's constructed on marshland on Nakagawa lowland in Saitama prefecture - Misato, Yoshikawa, Takesato, and Soka-Matsubara. Those housings are mainly larger scale mid-rise buildings located on Tokyo suburbs and former land-use is paddy field where collective housings had been never built before 1950's since those areas have deep alluvial layer.

  6. Library Resource
    Articles et Livres
    avril, 2014
    Japon

    Here we propose an accurate and robust method for large-area land-use and land-cover (LULC) mapping using multi-temporal optical data. The conventional method for LULC classification usually uses time-series data at regular intervals to consider the seasonality of LULC. However, high-resolution optical data have considerable seasonal biases, making it difficult to use time-series data.

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