苏黎世联邦理工学院生态学家Daisy Dent通过对巴拿马巴罗科罗拉多自然保护区超过一个世纪的森林样地研究，揭示了动物与植物互作如何推动热带雨林自然再生1。她的研究表明，果实取食动物负责种植热带雨林中70%以上的树木1，这一生态机制对森林恢复至关重要。Dent指出，"热带雨林由大规模相互作用网络支撑——包括帮助树木吸收养分的真菌、授粉者和种子传播者之间的相互作用"1。
自然再生的次生林碳汇能力远超预期。2016年发表在《自然》期刊的论文显示，自然再生的次生林每年吸收碳量是老生林的11倍1，这挑战了传统大规模单一树种植林碳抵消方案的有效性。更新的2024年研究发现，覆盖度仅35%的地块可恢复为森林1，许多地区在数十年内无需人工种植即可恢复到古老雨林的丰富度和结构1。全球约2.15亿公顷森林——面积超过墨西哥——具有自然再生的潜力1，其中巴西约有数百万公顷雨林正在经历这一过程1。考虑到热带雨林占全球陆地碳储量的40%1，这一发现对气候变化应对具有重要意义。
Daisy Dent, an ecologist at ETH Zurich, has revealed how animal-plant interaction networks enable tropical rainforests to naturally regenerate without human intervention.1 Through analysis of forest plots in Panama's Barro Colorado Nature Reserve—records stretching back to the nineteenth century—Dent's research demonstrates that naturally regenerating secondary forests absorb carbon at eleven times the rate of old-growth forests annually.1 This finding challenges the effectiveness of large-scale monoculture tree-planting carbon offset schemes.
The research shows that fruit-eating animals are responsible for establishing over seventy percent of tropical rainforest tree species.1 According to Dent, "tropical rainforests are supported by massive networks of interactions—including interactions between fungi that help trees absorb nutrients, pollinators, and seed dispersers."1 A 2024 study found that forest plots with only thirty-five percent canopy coverage can recover to full forest status.1 Globally, approximately 2.15 billion hectares of forest—an area larger than Mexico—could naturally regenerate.1 In Brazil alone, millions of hectares of rainforest are already undergoing natural recovery.1
Tropical rainforests store forty percent of the world's terrestrial carbon.1 Dent's research suggests that protecting and enabling natural regeneration processes may be more effective for carbon sequestration than conventional reforestation approaches relying on human planting efforts.
评论
还没有评论，欢迎留下第一条。