概括
土地利用变化使地球提供福利的能力减少了10%,影响农业,林业和医学. 需要采取紧急行动,以防止进一步的退化,并利用生态系统服务的自然恢复.
科学领域:
- 生态生态学 生态生态学
- 环境科学 环境科学
- 保护生物学 保护生物学
背景情况:
- 土地利用变化对全球陆地生态系统产生重大影响.
- 大约43%的地球植被地表现出减少了为人类提供福利的能力.
- 这种降解导致潜在的直接仪器价值 (PDIV) 的大量损失.
研究的目的:
- 量化土地利用对生态系统服务的影响.
- 在当前趋势下预测PDIV的未来损失.
- 评估生态系统功能自然恢复的潜力.
主要方法:
- 对陆地植被表面影响的分析.
- 计算潜在的直接工具价值 (PDIV) 减少.
- 生物物理建模以评估恢复潜力.
主要成果:
- 最近的土地使用使PDIV减少了约10%.
- 如果没有干预,到2020年,全球PDIV损失可能达到20%.
- 通过自然机制,在25年内可能恢复5%的PDIV.
结论:
- 迫切需要采取战略来缓解土地退化.
- 利用自然恢复对于保持生态系统价值至关重要.
- 防止对生产性土地造成不可逆转的损害对于人类福祉至关重要.
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