Carbon-focused conservation may fail to protect the most biodiverse tropical forests
Carbon-focused conservation may fail to protect the most biodiverse tropical forests
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DOI：
10.1038/s41558-018-0225-7
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发表时间：
2018-08-01
影响因子：
30.7
通讯作者：
Barlow, Jos
中科院分区：
文献类型：
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作者：
Ferreira, Joice;Lennox, Gareth D.;Barlow, Jos
作为地球上碳密度最高的地区之一，热带森林是减缓气候变化努力的核心。它们无与伦比的物种丰富性也使它们对保护生物多样性至关重要。然而，由于研究没有在与管理有关的尺度上进行，而且往往没有考虑到森林干扰，因此对碳保护战略的生物多样性影响仍然知之甚少。我们调查热带碳生物多样性的关系和权衡沿着森林干扰梯度，使用详细和广泛的碳和生物多样性数据集。生物多样性与碳在次生林和高度干扰的原始森林。正的碳-生物多样性关系在100 MgC ha（-1）左右消失，这意味着在受干扰较少的森林中，更多的碳并不等于更多的生物多样性。因此，模拟的碳保护计划未能保护物种最丰富的森林中的许多物种。这些生物多样性的短缺对机会成本很敏感，可以通过少量的碳处罚来减少。为了确保最具生态价值的森林得到保护，需要将生物多样性纳入碳保护规划。
As one of Earth's most carbon-dense regions, tropical forests are central to climate change mitigation efforts. Their unparalleled species richness also makes them vital for safeguarding biodiversity. However, because research has not been conducted at management-relevant scales and has often not accounted for forest disturbance, the biodiversity implications of carbon conservation strategies remain poorly understood. We investigated tropical carbon-biodiversity relationships and trade-offs along a forest-disturbance gradient, using detailed and extensive carbon and biodiversity datasets. Biodiversity was positively associated with carbon in secondary and highly disturbed primary forests. Positive carbon-biodiversity relationships dissipated at around 100 MgC ha(-1), meaning that in less disturbed forests more carbon did not equal more biodiversity. Simulated carbon conservation schemes therefore failed to protect many species in the most species-rich forests. These biodiversity shortfalls were sensitive to opportunity costs and could be decreased for small carbon penalties. To ensure that the most ecologically valuable forests are protected, biodiversity needs to be incorporated into carbon conservation planning.