生物物理的要因と管理慣行は,森林の回復力を形作る上で重要な役割を果たしています
Yu Yan1,2, Xingyu Feng1,2, Zhiyong Liu3,4
1Center for Water Resources and Environment, School of Civil Engineering, Sun Yat-sen University, Guangzhou, China.
Nature communications
|February 16, 2026
まとめ
森林管理は生態系の回復力に影響を及ぼし,管理されていない自然林が最も回復力があります. 高い水利用率のような特定の条件は,管理された森林を自然森林よりも回復力のあるものにすることができます.
科学分野:
- エコロジー エコロジー エコロジー
- 林業 林業 林業 林業 林業
- 環境科学 環境科学
背景:
- 森林管理は,人間の福祉にとって不可欠な生態系サービスに大きな影響を与えます.
- 異なる環境条件下での森林の回復力に対する森林管理の影響を理解することは極めて重要ですが,よく理解されていません.
研究 の 目的:
- 森林管理の実践と生体物理的要因の相互作用を調査する.
- これらの要因が2001年から2015年にかけて,世界の森林の回復力に及ぼす影響の組み合わせを調査する.
主な方法:
- クリティカル・スローダウン理論,衛星由来植生インデックス,機械学習を統合したフレームワークの開発.
- 異なる管理形態と環境条件における森林の回復力のグローバル分析.
主要な成果:
- 管理されていない自然林が最も高い回復力を示し,管理された自然林,そして植林が続いた.
- 森林管理は一般的に,高い人為的圧力下での回復力を低下させたが,この効果は特定の生体物理的条件下では逆転した.
- 植えられた森林は,湿気気候における自然森林よりも強い回復力を示した (降雨/潜在的蒸発透析比>1.5),自然森林は,より乾燥した気候においてより強い回復力を示した.
結論:
- 森林管理の慣行は,特に人為的なストレス下では,回復力を弱めることができますが,十分な水の利用可能性のような有利な条件はこれを軽減することができます.
- 温度,植物の密度,土壌の肥沃性などの環境要因は,管理された森林の回復力を高め,潜在的に自然の森林と一致させることができます.
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