Context-dependence of biodiversity effects and real-world perspective

生物多样性影响的背景依赖性和现实世界的视角

• 批准号: 289477773
• 负责人: Professorin Dr. Nina Buchmann
• 金额: --
• 依托单位: Plant Ecology
• 依托单位国家: 德国
• 项目类别: Research Units
• 财政年份: 2016
• 资助国家: 德国
• 起止时间: 2015-12-31 至 2020-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/289477773?language=en
• 关键词: Context; dependence; biodiversity; effects; real

In the last two decades there has been enormous progress on clarifying the relationship between biodiversity and ecosystem functioning. In this proposal, we address four challenges for further progress in the field. There is a wide variety of responses of different ecosystem functions to changes in plant diversity, which also depend on the considered ecosystem. For fundamental ecology it is thus important to understand a) why the effects of biodiversity differ between different ecosystems and different ecosystem functions, and b) if and why there are trade-offs and synergies in biodiversity effects on different functions. We will analyse drivers of the variation in biodiversity effects on different ecosystem variables and analyse synergies and trade-offs between different ecosystem functions. These analyses will make use of the wealth of data collected in the Jena Experiment, and, in cross-site comparisons, include data of other biodiversity experiments. For fundamental and applied reasons it is important c) to put the results found in biodiversity experiments in a real-world context, and d) to improve our understanding of the role of diversity for ecosystem services and, in consequence, for ecosystem management. We will address this by systematically comparing results and mechanisms between biodiversity experiments and real-world systems, and by assessing biodiversity effects on ecosystem services. Results from the Jena Experiment, further experiments, and the Biodiversity Exploratories - where biodiversity and ecosystem functioning is studied along a gradient of land-use intensity in the real world - will be compared. Moreover, different ecosystem-service scenarios will be developed, valuated economically and the underlying role of biodiversity will be studied. This subproject will collaborate closely with the other subprojects of the research unit and it will link the Jena Experiment to other major international research efforts on the role of biodiversity for ecosystem functioning and ecosystem services.

在过去二十年中，在澄清生物多样性与生态系统功能之间的关系方面取得了巨大进展。在本提案中，我们讨论了在该领域取得进一步进展的四项挑战。不同的生态系统功能对植物多样性变化的反应多种多样，这也取决于所考虑的生态系统。因此，对于基础生态学而言，重要的是要理解a）为什么生物多样性的影响在不同的生态系统和不同的生态系统功能之间存在差异，以及B）生物多样性对不同功能的影响是否存在权衡和协同作用，以及为什么存在权衡和协同作用。我们将分析生物多样性对不同生态系统变量的影响变化的驱动因素，并分析不同生态系统功能之间的协同作用和权衡。这些分析将利用耶拿实验收集的大量数据，并在跨地点比较中包括其他生物多样性实验的数据。从根本和应用的角度来看，重要的是c）将生物多样性实验中发现的结果置于现实世界的背景下，d）提高我们对多样性在生态系统服务中的作用的理解，从而提高对生态系统管理的理解。我们将通过系统地比较生物多样性实验和现实世界系统之间的结果和机制，并通过评估生物多样性对生态系统服务的影响来解决这个问题。将比较耶拿实验、进一步实验和生物多样性探索站的结果-在生物多样性探索站中，沿着真实的世界土地利用强度梯度研究生物多样性和生态系统功能。此外，还将制定不同的生态系统服务设想方案，进行经济评估，并研究生物多样性的基本作用。该分项目将与研究股的其他分项目密切合作，并将耶拿实验与关于生物多样性对生态系统功能和生态系统服务的作用的其他主要国际研究工作联系起来。