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
    mars, 2015
    Chine

    The purpose of this study is to discover the changes of household employment structure and of business range for those graziers who have to turn to rear sheep in pens as the background of the policy of returning farmland into forest and grassland. The results of this study are as follows: First, after turning to rear sheep in pens, though the graziers have saved time for other work, the time for feeding has increased to the whole year. In addition, the policy that encourages the rearing of sheep in pens has brought about a growing number of sheep graziers.

  4. Library Resource
    Articles et Livres
    mars, 2015
    Japon

    The purpose of this study is to show the administrative institutions and acts for the unused farmlands in hilly and mountainous areas. The Nagano City Agricultural Commitee surveyed the farmland used in 2013, and produced a survey in collaboration with the members of their committee as well as other farmers. In this survey, it was shown that almost all the unused farmlands were kept as forests and thus, couldn't be cultivated. Before the 1970s, silk was produced in Nagano City, and so almost all the unused farmlands were used for mulberry production which supported the silk industry.

  5. Library Resource
    Articles et Livres
    avril, 2010
    Chine

    Based on the climatic data and other statistics of climatic data of 54 meteorological stations from 1956 to 2005 in Liangning Province, the annual and seasonal light, heat and water and the like major elements of climatic resources are diagnosed and analyzed by using the method of linear climate trend rate. The results show that warming trend is 0.25℃/10a , the precipitation decrease gradually by 2.2mm/a and the decreasing trend of solar radiation and hours of sunshine is not dramatic.

  6. 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.

  7. 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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