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

菌根菌丝体产量与森林经营强度和生态系统功能的关系

• 批准号: 252221843
• 负责人: Dr. Rodica Pena, Ph.D.
• 金额: --
• 依托单位: University of Reading
• 依托单位国家: 德国
• 项目类别: Infrastructure Priority Programmes
• 财政年份: 2014
• 资助国家: 德国
• 起止时间: 2013-12-31 至 2017-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/252221843?language=en
• 关键词: Mycorrhizal; mycelia; production; relation; forest

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.

本研究的目的是研究土壤菌根菌丝生物量和种类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。将首次估算山毛榉（Fagus sylvatica）森林的EMM产量、直立生物量和周转量。我假设EMM可以看作是碳通量和氮通量之间的灵活接头，它取决于影响资源可用性的森林经营实践。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，该项目包括多达150个森林试验地。因此，EMM将在大范围的管理类型和强度下进行分析。因此，我将回答EMM生物量在多大程度上受到资源变异的影响，以及菌根真菌物种丰富度是否影响EMM生物量生产。根据产生不同类型EMM的真菌种类特征，评估土壤菌根真菌群落的功能冗余。