A recent review suggests that forest cover needs to be restored or maintained on at least 40% of land area. In the absence of empirical evidence to support this threshold, we discuss how this suggestion is unhelpful and potentially dangerous. We advocate for regionally defined thresholds to inform conservation and restoration.

中文翻译：

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关于景观应占森林覆盖率40％的建议缺乏证据并且存在问题

最近的一项审查表明，至少要在40％的土地面积上恢复或维持森林覆盖率。在缺乏经验证据来支持该阈值的情况下，我们将讨论该建议如何无益且潜在危险。我们主张在区域内确定阈值，以告知保护和恢复。