摘要
热带雨林是地球上生物多样性最高的陆地生态系统,具有重要的生物多样性保护价值和固碳潜力。当前热带次生林占热带林总面积的50%以上,已成为热带森林的主体。热带次生林的演替方向和恢复速度已经成为生态恢复和生物多样性保育领域的研究重点。物种多样性和地上生物量的恢复动态是热带次生林研究中的2个重要内容。通过研究物种组成的变化可以确定次生林演替的发展方向,通过研究地上生物量的变化趋势可以了解次生林的固碳潜力。本文从热带次生林生物多样性和生态系统功能的角度出发,重点介绍了物种多样性和地上生物量在次生演替过程中的恢复动态。概述了物种组成恢复过程中的确定性和随机性过程以及不同生境特有种对群落物种组成恢复的影响,探讨了影响地上生物量及其动态的生物和非生物因素以及生物多样性与地上生物量之间的关系。展望了未来气候变化背景下的热带次生林恢复研究方向,旨在为热带次生林的管理、保护和恢复提供重要的科学依据。
Tropical rainforests are terrestrial ecosystems with the highest plant diversity on earth,and they have important biodiversity conservation value and carbon sequestration potential.Given the tropical secondary forests accounting for more than 50%of the total forest area,it had become the main forest types in tropical regions.The direction of succession and restoration rate of tropical secondary forests have become the research focus of ecological restoration and biodiversity conservation.Restoration dynamics of species diversity and aboveground biomass are two important aspects of tropical secondary forest research.The direction of secondary forest succession could be determined by exploring changes in species composition,and the carbon sequestration potential of secondary forest can be understood by studying the trend of aboveground biomass.From the perspective of biodiversity and ecosystem function in tropical secondary forest,this paper focuses on the recovery dynamics of species diversity and aboveground biomass during secondary succession.The deterministic and stochastic processes in the recovery of species composition and the effects of species with different habitat specialization on the restoration of community species composition were summarized.The potential influence of the biotic and abiotic factors on aboveground biomass and its dynamics,as well as the relationship between biodiversity and aboveground biomass were discussed.Finally,we prospected the future research direction of tropical secondary forest restoration,aiming to provide an important scientific basis for the management,protection and restoration of tropical secondary forests under the scene of climate change in the future.
作者
田立新
丁易
臧润国
Tian Lixin;Ding Yi;Zang Runguo(Key Laboratory of Forest Ecology and Environment of National Forestry and Grassland Administration,Ecology and Nature Conservation Institute,Chinese Academy of Forestry,Beijing 100091 China;Jiangxi Forestry Resources Monitoring Center,Nanchang 330000,China;Hainan Bawangling Forest Ecosystem Research Station,Changjiang 272722,China;Co-Innovation Center for Sustainable Forestry in Southern China,Nanjing Forestry University,Nanjing 210037 China)
出处
《陆地生态系统与保护学报》
2022年第6期88-96,共9页
Terrestrial Ecosystem and Conservation
基金
国家自然科学基金(32271616)
2020年海南国家公园研究院科研项目“海南长臂猿栖息地及其他热带雨林生态修复研究”的课题“海南长臂猿退化生境恢复技术及示范”。
关键词
热带次生林
群落演替
树种多样性
地上生物量
生境特有种
tropical secondary forests
community succession
tree species diversity
aboveground biomass
tree species'habitat specialization
