Mycorrhizal mycelia production in relation to forest management intensity and ecosystem functions

这项建议的目的是调查土壤菌根外菌丝体(EMM)的生物量和物种组成与土地利用强度和生态系统过程(如碳和养分循环)的关系。将首次在山毛榉(Fagus Sylvatica)森林中估计EMM的产量、现存量和周转量。我假设EMM可以被认为是C和N通量的灵活结合，取决于影响资源可获得性的森林经营做法。这项研究将在大规模和长期的生物多样性探索项目中进行，该项目涵盖了多达150个森林试验田。因此，将在大范围的管理类型和强度下对EMM进行分析。因此，我将回答EMM生物量在多大程度上受到资源变异性的影响，以及菌根真菌物种丰富度是否影响EMM生物量的生产。根据产生不同类型EMM的真菌种类特性，我将评估土壤菌根真菌群落中的功能冗余。

The goal of this proposal is to investigate the biomass and species composition of soil mycorrhizal extramatrical mycelium (EMM) in relation to land-use intensity and ecosystem processes such as carbon and nutrient cycling. EMM production, standing biomass and turnover will be for the first time estimated in beech (Fagus sylvatica) forests. I hypothesize that EMM, which can be regarded as flexible joint between C and N flux, depends on forest management practices that influence the resource availability. The study will be conducted within the large-scale and long-term Biodiversity Exploratories project compassing up to 150 forest experimental plots. EMM will be therefore analyzed under a large range of management types and intensities. Hence, I will answer to what extent the EMM biomass is affected by resource variability and whether mycorrhizal fungal species richness affects EMM biomass production. Based on the fungal species trait to produce different types of EMM, I will assess the functional redundancy in soil mycorrhizal fungal communities.