世界森林損失の要因を分類する
Philip G Curtis1, Christy M Slay2, Nancy L Harris3
1Sustainability Consortium, University of Arkansas, Fayetteville, AR 72701, USA. philip.curtis@sustainabilityconsortium.org.
Science (New York, N.Y.)
|September 15, 2018
まとめ
森林の減少の原因は 商品としての森林破壊と 森林破壊や野火などの 暫定的な干渉によるものです 伐採を止めるには 企業は年間500万ヘクタールの 伐採地を 供給チェーンから取り除く必要があります
科学分野:
- 環境科学
- リモートセンシング
- 林業
背景:
- 世界の森林破壊の地図には 干渉の規模が示されていますが 干渉の原因は特定されていません
- 永続的な森林破壊と一時的な森林喪失を区別することは,保全と政策にとって極めて重要です.
研究 の 目的:
- 2001年から2015年にかけての世界の森林破壊を 主要な要因に割り当てる森林破壊分類モデルを開発する.
- 永久的な土地利用の変化 (森林破壊) と一時的な破壊による森林損失の割合を定量化する.
主な方法:
- 衛星画像を用いて分類モデルを開発した.
- 森林破壊,林業,農業の移転,野火といった 特定の原因による森林損失を 分析した.
主要な成果:
- 2001年から2015年にかけての世界の森林損失の27%は 商品主導の森林破壊に起因しています
- 森林伐採 (26%),移動農業 (24%) と野火 (23%) が一時的な森林伐採の原動力となった.
- 企業のコミットメントにもかかわらず 商品主導の森林伐採の割合は 減少していません
結論:
- 森林伐採を止めるには 企業は年間500万ヘクタールの 伐採を削減しなければなりません
- 森林破壊の要因を正確に特定することは 効果的な森林管理と政策介入に不可欠です
- 森林伐採の削減の進展を追跡するには,継続的な監視と透明な報告が必要である.
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