Understanding the contribution of functional traits of individual fungal taxa to ecosystem functions under different land use scenarios (FunTrait)

真菌在土壤结构形成、养分循环和植物生产力等土壤生态系统服务功能中的重要性已得到广泛认可。然而，一个全面的联系个别真菌类群和生态系统服务是目前不可能的，由于缺乏知识的功能特性，这些类群。我们建议从事大规模，高通量培养的腐真菌从非常密集的（VI）草地地块的生物多样性探索。鉴定后，我们将筛选这些培养物中与复杂有机化合物降解和土壤养分循环相关的酶活性。然后将这些性状信息与所有实验草地样地（EP）中真菌的分子多样性评估联系起来并放大，以获得群落加权平均性状值。我们将测试这些平均值是否可以用来作为预测生态系统功能在现场测量。随后，我们将分析真菌物种多样性在生态系统服务方面的冗余程度，并测试这种冗余程度是否沿着土地利用梯度变化。最后，通过整合社区组成和性状数据的一个合作项目中的土壤生物多样性的一个主要部分，我们将综合土壤生物多样性和身份的重要性，在生态系统功能的知识。这将使我们能够全面概述更广泛的土壤生物提供的土壤功能及其对土地利用集约化的脆弱性。

The functional significance of fungi in soil based ecosystem services, such as soil structure formation, nutrient cycling, and plant productivity, is widely acknowledged. However, a comprehensive link between individual fungal taxa and ecosystem services is currently impossible, due to a lack of knowledge of functional traits of these taxa. We propose to engage in large scale, high throughput culturing of saprobic fungi from the very intensive (VI) grassland plots of the Biodiversity Exploratories. After identification, we will screen these cultures for enzymatic activities related to the degradation of complex organic compounds and nutrient cycling in the soil. This trait information will then be linked and upscaled to molecular diversity assessments of fungi in all experimental grassland plots (EP) in order to obtain community weighted mean trait values. We will test whether these mean values can be used as predictors for ecosystem functions measured in situ in the field. Subsequently, we will analyze how redundant the fungal species diversity is in terms of ecosystem services and test whether this degree of redundancy varies along the land use gradient. Finally, by integrating community composition and trait data for a major part of the soil organism diversity in a collaborative work project, we will synthesize the knowledge on the importance of soil organism diversity and identity in ecosystem functioning. This will allow us to generate a comprehensive overview of the soil functions provided by a wider range of soil organisms and their vulnerability to land use intensification.