Coordination Funds

协调基金

• 批准号: 432652500
• 负责人: Professor Dr. Nico Eisenhauer
• 金额: --
• 依托单位: Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv)
• 依托单位国家: 德国
• 项目类别: Research Units
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/432652500?language=en
• 关键词: Coordination; Funds

The previous phase of the Jena Experiment provided novel empirical evidence that ecological and evolutionary processes are intertwined in determining biodiversity-ecosystem functioning (BEF) relationships, and long-term experiments are key not only to gain a basic understanding of the relative importance as well as interactions of these processes but also to apply these concepts to better provisioning of ecosystem functions and stability. However, this prior research predominantly focused on the magnitude of various ecosystem functions, rather than on their stability, and mechanistic insights into biodiversity-stability relationships are especially lacking. It is thus key to continue developing a whole-ecosystem perspective in BEF research. In this interdisciplinary project, we propose to focus on the biodiversity drivers of ecosystem stability in the second phase of the Research Unit, including temporal stability using unique time series and stability in response to extreme climate events, such as drought, flooding, hot spells, and exceptional frost periods. The main hypothesis is that (multifunctional) stability is highest in high-diversity plots and biodiversity-stability relationships increase over time, due to a variety of forms of ecological complementarity. We propose to utilize a combination of approaches, with experiments in the field, iDiv Ecotron, and microcosms, based on biodiversity-stability theory. In the Main Experiment, we have ~two decades of high-resolution, field-level (air temperature, air moisture, radiation), and plot-specific data (soil temperature and moisture) that will allow us to identify extreme climate events. Synthesizing data from the subplots of the ΔBEF Experiment allow us to study the role of soil history in long-term plant diversity effects on ecosystem functioning and stability. The unique database from multiple long-term experiments, combined with repeated measurements of a multitude of different ecosystem functions, allows us to study how biodiversity can buffer ecosystems as affected by climate extremes. We can also use these long-term plots and their assembled communities and excavate soil to expose them to certain environmental conditions like climate extremes in a controlled way in the iDiv Ecotron. Moreover, we can use soil (respectively selected microbial inocula which are used to form a synthetic microbial community) taken from the long-term Main Experiment to perform small-scale microcosm experiments, to test additional stressors or mechanisms under controlled laboratory or greenhouse conditions. All subprojects will closely collaborate in the field (Main Experiment) as well as in the iDiv Ecotron Experiment (ResCUE Experiment) or central microcosm experiment (DrY Experiment), while smaller teams of subprojects will work together in Complementary Microcosm Experiments (CoMic Experiments). Extensive synthesis work will integrate data and information across subprojects and research platforms.

Jena的前阶段试验了新的证据，即生物多样性生物生态系统功能（BEF）中掌握的情绪和进化过程，并且长期实验不仅是获得对过程的基本理解以及应用过程的相互作用的关键，而且是应用程序的相互作用的关键。更好地提供生态系统的概念和稳定性。研究单位的第二阶段，使用独特的Tique系列和稳定性来响应极端事件，例如脱渣，洪水，热咒和出色的霜冻时期。生物稳定性关系随着时间的流逝而增加，这是基于生物多样性稳定性理论的多种形式的生态补充。温度，空气水分，辐射）和特定于情节的数据恢复气候事件。在气候极端的多种障碍功能中，我们还可以在IDIV Ecotron中使用这些长期图和它们的组装等离子。 ）从长期的主要实验中进行小尺度的缩影实验，以及在IDIVRON实验中进行的（救援实验） （漫画实验）。