Key Laboratory of Biodiversity and Ecological Engineering, School of Life Sciences, Ministry of Education, Beijing Normal University, Beijing, 100875, China.
School of Life Science (School of Giant Panda), China West Normal University, Nanchong, 637009, China; Daxiangling Nature Reserve Management and Protection Center of Yingjing County, Ya'an, Sichuan, 625000, China.
J Environ Manage. 2024 Sep;368:122052. doi: 10.1016/j.jenvman.2024.122052. Epub 2024 Aug 11.
Climate change presents formidable challenges to forest biodiversity and carbon storage. Bamboo forests will be affected particularly in Southwest China's mountainous regions. Bamboo serves as not only a key food resource and habitat for giant panda Ailuropoda melanoleuca but also a potential carbon sink due to its rapid energy-to-matter conversion capability. We employ the MaxEnt model to project the distribution shifts of 20 giant panda foraged bamboo species in Sichuan Province under future climate scenarios, utilizing climate data of 30m resolution. Based on the changes in the diversity and distribution area of bamboo communities caused by climate change, the changing of giant pandas' food resources and the carbon storage of bamboo forests were calculated. The results indicated that the area of bamboo communities is projected to expand by 17.94%-60.88% more than now by the end of the 21st century. We analyzed the energy balance between the dietary needs of giant pandas and the energy provided by bamboo. We predicted that bamboo communities from 2000 to 2150 could support the continuous growth of the giant panda population (6533 wild individuals by 2140-2150 in an ideal state in Sichuan province). However, the species diversity and carbon storage of bamboo forests face out-of-sync fluctuations, both temporally and spatially. This is a critical issue for subalpine forest ecosystem management under climate change. Therefore, we propose a dynamic conservation management framework for giant panda habitats across spatial and temporal scales. This framework aims to facilitate the adaptation of subalpine forest ecosystems to climate change. This innovative approach, which integrates climate change into the conservation strategy for endangered species, contributes a conservation perspective to global climate action, highlighting the interconnectedness of biodiversity preservation and climate mitigation.
气候变化给森林生物多样性和碳储存带来了巨大挑战。特别是在中国西南山区,竹林将受到特别影响。竹子不仅是大熊猫(Ailuropoda melanoleuca)的重要食物资源和栖息地,而且由于其快速的能量到物质转换能力,也是一种潜在的碳汇。我们采用 MaxEnt 模型,利用 30m 分辨率的气候数据,预测了未来气候情景下四川省 20 种大熊猫觅食竹种的分布转移。基于气候变化引起的竹林多样性和分布区的变化,计算了大熊猫食物资源的变化和竹林的碳储存。结果表明,到 21 世纪末,竹林面积预计将比现在增加 17.94%至 60.88%。我们分析了大熊猫饮食需求和竹子提供的能量之间的能量平衡。我们预测,从 2000 年到 2150 年,竹林可以支持大熊猫种群的持续增长(到 2140-2150 年,在四川省理想状态下,野生个体数量为 6533 只)。然而,竹林的物种多样性和碳储存面临着时空上的非同步波动。这是应对气候变化下亚高山森林生态系统管理的一个关键问题。因此,我们提出了一个跨时空尺度的大熊猫栖息地动态保护管理框架。该框架旨在促进亚高山森林生态系统适应气候变化。这种将气候变化纳入濒危物种保护策略的创新方法,为全球气候行动提供了一个保护视角,强调了生物多样性保护和气候缓解之间的相互关联。