Impact of deadwood on functional diversity and biogeochemical traits in underlying forest soils
枯木对森林土壤功能多样性和生物地球化学特征的影响
基本信息
- 批准号:325104630
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:德国
- 项目类别:Infrastructure Priority Programmes
- 财政年份:2017
- 资助国家:德国
- 起止时间:2016-12-31 至 2022-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Decomposing deadwood logs serve as habitat for many specialized organisms. They mostly represent an energy-rich and nutrient-poor resource in forest ecosystems. Logs differ from soils in nutrient content and availability, but the biological and chemical interactions with underlying soil are largely unknown, leaving a gap of knowledge concerning the implications of deadwood for functions and biodiversity in forest soils. Fungal hyphae have the capability to bridge the two habitats and to redistribute nutrients between deadwood and soil. In the Biodiversity Exploratories, nutrient gradients exists through different nutrient concentrations in logs of 13 tree species, exposed in the BeLongDead experiment, and different soils, influenced by forest management. Understanding nutrient translocation as key mechanism is crucial for predicting the impact of nutrient gradients as driver of microbial community structure and function, fine root traits and chemical soil properties at the wood-soil interface. One aim of the proposed project is to elucidate the potential of nutrient translocation by different soil fungal communities occurring in the Exploratory forests in a controlled laboratory experiment. Another aim is to study the long-term effects of yet 9 years decomposing logs on underlying soils in the BeLongDead experiment. Our overarching hypothesis is that nutrient-poor and nutrient-rich soils respond differently to nutrient gradients to logs, which vary among tree species. For nutrient-poor soils, we hypothesize increasingly positive effects of log nutrients on (1) nutrient translocation towards soil, (2) functional diversity of saprotrophic fungi, (3) fine root density, ectomycorrhizal short roots and diversity of ectomycorrhizal fungi, and (4) microbial biomass and activity. For nutrient-rich soils, we expect opposite responses (1 and 2), no impact (3) and a similar effect (4), respectively. To test the hypotheses, we will combine innovative and established methods as well as field work and laboratory experiments. Hyphal nutrient translocation will be assessed based on 15N and 33P labelling accompanied by metatranscriptome sequencing. Chemical and microbial soil parameters as well as root traits will be linked to fungal community structure and activity assessed by Next-Generation-Sequencing approaches. Combined expertise will allow us to evaluate the relevance of fungal diversity and soil properties below logs for ecosystem processes. By working on a coordinated and full replicated experiment across nutrient gradients, we expect robust results with high scientific impact and benefits for forestry.
分解的枯木原木是许多特殊生物的栖息地。它们主要代表森林生态系统中能源丰富但营养贫乏的资源。原木在养分含量和可用性方面与土壤不同,但与下层土壤的生物和化学相互作用在很大程度上是未知的,这使得关于枯木对森林土壤功能和生物多样性的影响的知识存在空白。真菌菌丝有能力架起两个栖息地的桥梁,并在枯木和土壤之间重新分配养分。在生物多样性探索中,BeLongDead 实验中暴露的 13 种树种的原木中的不同养分浓度以及受森林管理影响的不同土壤中存在养分梯度。了解养分易位作为关键机制对于预测养分梯度作为微生物群落结构和功能、细根性状和木-土界面化学土壤特性的驱动因素的影响至关重要。拟议项目的目的之一是通过受控实验室实验阐明探索森林中不同土壤真菌群落发生养分转移的潜力。另一个目的是在 BeLongDead 实验中研究 9 年腐烂原木对下层土壤的长期影响。我们的首要假设是,营养贫乏和营养丰富的土壤对原木营养梯度的反应不同,而不同树种的营养梯度也不同。对于营养贫乏的土壤,我们假设原木养分对(1)养分向土壤的转移,(2)腐生真菌的功能多样性,(3)细根密度,外生菌根短根和外生菌根真菌的多样性,以及(4)微生物生物量和活性产生越来越积极的影响。对于营养丰富的土壤,我们预计会分别出现相反的反应(1 和 2)、无影响(3)和类似的影响(4)。为了检验这些假设,我们将结合创新和成熟的方法以及现场工作和实验室实验。将根据 15N 和 33P 标记以及宏转录组测序来评估菌丝营养物质易位。化学和微生物土壤参数以及根性状将与通过下一代测序方法评估的真菌群落结构和活性相关联。综合专业知识将使我们能够评估真菌多样性和原木以下土壤特性与生态系统过程的相关性。通过跨营养梯度进行协调和完全重复的实验,我们期望获得具有高度科学影响和林业效益的稳健结果。
项目成果
期刊论文数量(1)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Changes in Chemical and Microbial Soil Parameters Following 8 Years of Deadwood Decay: An Experiment with Logs of 13 Tree Species in 30 Forests
- DOI:10.1007/s10021-020-00562-z
- 发表时间:2020-09
- 期刊:
- 影响因子:3.7
- 作者:Cynthia Minnich;Derek Peršoh;C. Poll;W. Borken
- 通讯作者:Cynthia Minnich;Derek Peršoh;C. Poll;W. Borken
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
Professor Dr. Dominik Begerow, since 12/2020其他文献
Professor Dr. Dominik Begerow, since 12/2020的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
相似海外基金
Collaborative Research: NSFDEB-NERC: Tropical deadwood carbon fluxes: Improving carbon models by incorporating termites and microbes
合作研究:NSFDEB-NERC:热带枯木碳通量:通过结合白蚁和微生物改进碳模型
- 批准号:
2149151 - 财政年份:2021
- 资助金额:
-- - 项目类别:
Standard Grant
Effects of mammal behavior on deadwood decomposition
哺乳动物行为对枯木分解的影响
- 批准号:
18K14490 - 财政年份:2018
- 资助金额:
-- - 项目类别:
Grant-in-Aid for Early-Career Scientists
Collaborative Research: NSFDEB-NERC: Tropical deadwood carbon fluxes: Improving carbon models by incorporating termites and microbes
合作研究:NSFDEB-NERC:热带枯木碳通量:通过结合白蚁和微生物改进碳模型
- 批准号:
1655340 - 财政年份:2017
- 资助金额:
-- - 项目类别:
Standard Grant
Collaborative Research: NSFDEB-NERC: Tropical deadwood carbon fluxes: Improving carbon models by incorporating termites and microbes
合作研究:NSFDEB-NERC:热带枯木碳通量:通过结合白蚁和微生物改进碳模型
- 批准号:
1655759 - 财政年份:2017
- 资助金额:
-- - 项目类别:
Standard Grant
NSFDEB-NERC:Tropical deadwood carbon fluxes: Improving carbon models by incorporating termites and microbes
NSFDEB-NERC:热带枯木碳通量:通过结合白蚁和微生物改进碳模型
- 批准号:
NE/R012342/1 - 财政年份:2017
- 资助金额:
-- - 项目类别:
Research Grant
DECOMPOSITION OF DEADWOOD DEBRIS LEFT OVER FROM TROPICAL RAINFOREST LOGGING OPERATIONS
热带雨林伐木作业留下的死木碎片的分解
- 批准号:
NE/P002218/1 - 财政年份:2017
- 资助金额:
-- - 项目类别:
Research Grant
Exploring the role of deadwood in the forest soil carbon cycle.
探索枯木在森林土壤碳循环中的作用。
- 批准号:
1801115 - 财政年份:2016
- 资助金额:
-- - 项目类别:
Studentship
Exploring the role of deadwood in the forest soil carbon cycle
探索枯木在森林土壤碳循环中的作用
- 批准号:
NE/N008529/1 - 财政年份:2016
- 资助金额:
-- - 项目类别:
Training Grant
2015 Summer Program at Center for Theoretical Underground Physics and Related Areas (CETUP*)/PPC June 15-July 17, 2015 in Lead/Deadwood, SD.
2015 年夏季项目于理论地下物理及相关领域中心 (CETUP*)/PPC 于 2015 年 6 月 15 日至 7 月 17 日在南达科他州铅/戴德伍德举行。
- 批准号:
1523395 - 财政年份:2015
- 资助金额:
-- - 项目类别:
Standard Grant
Geothermal potential of the Cambrian-Ordovician Deadwood Formation of Saskatchewan
萨斯喀彻温省寒武纪-奥陶纪戴德伍德组的地热潜力
- 批准号:
483891-2015 - 财政年份:2015
- 资助金额:
-- - 项目类别:
Engage Grants Program