森林再生と再建を混同することは,広く行われています
Catherine L Parr1,2,3, Mariska Te Beest4,5,6, Nicola Stevens3,7
1School of Environmental Sciences, University of Liverpool, Liverpool, UK.
まとめ
アフリカの非森林の生態系に 木を植えることは有害である. 不適切な修復作業がこれらの貴重な景観を脅かし,生物多様性と生態系の機能に影響を与えています.
科学分野:
- エコロジー
- 保護生物学
- 環境科学
背景:
- サバンナや草原などの非森林生態系は 重要な生息地です
- これらの生態系は,土地の劣化と生物多様性の喪失による圧力の増大に直面しています.
研究 の 目的:
- アフリカの非森林地帯に 広く植えられた木の生態学的影響を評価する.
- 不適切な修復戦略に伴うリスクを強調する.
主な方法:
- アフリカの非森林回復に関する既存の生態学的研究のレビュー.
- 地表の変化を評価するための衛星画像の分析
- 森林以外の地域での植樹プロジェクトに関するケーススタディの評価
主要な成果:
- 森林以外の土地に木を植えることは 生態系を回復させるのではなく 退廃させるのです
- 侵襲的な樹種は 地元の植生を上回り 生物多様性を減少させます
- 変化した水循環と土壌の性質は,一般的な悪影響です.
結論:
- 森林再生の取り組みは 環境に配慮したものでなければなりません
- 森林以外の生態系を 優先的に保護することが重要です
- 誤った修復はアフリカの環境問題を悪化させる可能性があります
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