The effect of forest management intensity, tree species and fungal-bacterial diversity on resource use, decomposition and gas emissions in dead Wood FunWood IV

森林经营强度、树种和真菌细菌多样性对死木资源利用、分解和气体排放的影响 FunWood IV

• 批准号: 107519832
• 负责人: Dr. Nico Jehmlich
• 金额: --
• 依托单位: Fakultät Angewandte Naturwissenschaften
• 依托单位国家: 德国
• 项目类别: Infrastructure Priority Programmes
• 财政年份: 2009
• 资助国家: 德国
• 起止时间: 2008-12-31 至 2022-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/107519832?language=en
• 关键词: effect; forest; management; intensity; tree

Wood-decomposition in forest ecosystems is a very important process with immense ecological consequences. Dead wood is an important structural component of forest ecosystems and it influences a large number of ecosystem functions of which the most relevant are C sequestration, nutrient cycling, and habitat provision for wood-dwelling organisms. The hereby proposed FunWood IV project will focus on ecosystem functions in dead wood decomposition and corresponding biodiversity. It aims to test experimentally whether increasing species richness will result in higher functional diversity in dead wood decomposer communities, and how the decomposer diversity and ecosystem processes are influenced by forest management intensity. FunWood IV will combine a range of state-of-the-art techniques (amplicon gene sequencing, metaproteomics, protein-SIP, CO2 emission rate and C/N content analyses) to provide an improved understanding on how decomposer communities execute wood degradation processes under fluctuating temperatures. In addition, we provide the opportunity to correlate between ecosystem processes such as wood decay and microbial diversity over tree species and along a gradient of forest management intensity on various geographic scales.The project FunWood IV targets three major objectives within the BeLong Dead (Biodiversity Exploratories Long term Dead Wood) consortium of DFG Priority Programme 1374: (i) to investigate the functional diversity in dead wood decomposer communities, (ii) to assess the functional and structural response of the wood-decomposing community to temperature fluctuations and (iii) to analyse the effect of forest management intensity and tree species on biodiversity accomplished with decomposition rates in dead wood.

森林生态系统中的木材分解是一个非常重要的过程，具有巨大的生态后果。枯木是森林生态系统的重要结构成分，它影响着大量的生态系统功能，其中最相关的是固碳、养分循环和为木质生物提供栖息地。现拟开展FunWood IV项目，重点研究枯木分解过程中的生态系统功能及相应的生物多样性。旨在通过实验验证物种丰富度的增加是否会提高枯木分解者群落的功能多样性，以及森林经营强度对分解者多样性和生态系统过程的影响。FunWood IV将结合一系列最先进的技术（扩增子基因测序，宏蛋白质组学，蛋白质sip，二氧化碳排放率和C/N含量分析），以更好地了解分解者群落如何在波动的温度下执行木材降解过程。此外，我们还提供了在不同地理尺度上，沿着森林经营强度梯度，将木材腐烂和微生物多样性等生态系统过程联系起来的机会。FunWood IV项目在DFG优先方案1374的“生物多样性探索长期枯木”联盟中有三个主要目标：(i)调查枯木分解群落的功能多样性；（ii）评估木材分解群落对温度波动的功能和结构响应；（iii）分析森林管理强度和树种对以枯木分解率实现的生物多样性的影响。