時系列高分解能衛星画像を用いたラオス北部の焼畑モニタリング Slash and Burn Monitoring using Temporal High Resolution Satellite Data in Northern Laos

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著者

    • 長澤 良太 NAGASAWA Ryota
    • 株式会社パスコインターナショナル 環境資源調査部リモートセンシンググループ Remote Sensing Group, Department of Environmental Resources Survey, PASCO Internationnal Inc.
    • 山下 恵 YAMASHITA Megumi
    • 株式会社パスコインターナショナル 環境資源調査部リモートセンシンググループ Remote Sensing Group, Department of Environmental Resources Survey, PASCO Internationnal Inc.

抄録

There has been a large amount of slash and burn agricultural activity from ancient times in Northern Laos. This study focuses the environmental impact of slash and burn on the forest ecology by mean of spatial and temporal analysis of high resolution satellite data. A Geographic Information System (GIS) was also used for analyzing the relationship between the slash and burn and forest vegetation, topography and social factors. Then, the sustainability of slash and burn was examined by the ecological analysis of the shifting pattern and fallow duration derived from the image interpretation. As a result of study, a total of 89, 000 ha of slash and burn fields within 172, 000 ha of fallow lands were detected during the past 10 years. Although the recent increase of population pressure caused an expansion of slash and burn fields (11, 000 ha in 1987 to 19, 000 ha in 1997), most parts (80%) of those fields are still maintaining the traditional conditions of having more than 7 years fallow duration. It can be said that such slash and burn is sustainable because of its ecologically balanced cycle of cultivation. Based on the analysis, it is concluded that slash and burn agriculture is not always a cause of environmental deterioration in the study area. More important is the introduction of a well managed methodology of forest resources for future sustainable development. In this sense, it can be recommended that remote sensing and GIS technology play a more important role in the monitoring of slash and burn agricultural practices.

収録刊行物

  • 写真測量とリモートセンシング  

    写真測量とリモートセンシング 37(5), 13-22, 1998-10-30 

    Japan Society of Photogrammetry and Remote Sensing

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各種コード

  • NII論文ID(NAID)
    10002050913
  • NII書誌ID(NCID)
    AN00111450
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    02855844
  • NDL 記事登録ID
    4597163
  • NDL 雑誌分類
    ZN1(科学技術--建設工学・建設業)
  • NDL 請求記号
    Z16-147
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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