Interaction between carbon exudation by tree roots and their mycorrhiza associations and forest floor thickness

树根碳渗出及其菌根组合与森林地面厚度之间的相互作用

基本信息

项目摘要

Different trees species exert a strong control on FF dynamics, as reflected by a steady state between litter input and decomposition. FF thickness increases from maple to beech to spruce (Vesterdal et al. 2008), the three tree species in the centre of our proposed RU. FF dynamics are controlled by leaf and root littler quality as well as as rhizodeposition that includes root exudation, boarder root cells and mucilage, which are carbon and nutrient sources for the fungi and microbes of the rhizosphere (Haichar et al. 2014). Roughly 30% of carbohydrates synthesised by photosynthesis are translocated belowground to the rhizosphere, i.e. to tree roots and their symbiotic mycorrhiza fungi and associated microbial community (Pausch and Kuzyakov, 2018, Pena et al., 2010). We hypothesize that tree nutrient use strategies and, in particular, the C composition of root exudates has a strong impact on the mycorrhiza, saprophytic and microbial community and activity that consequently affects FF nutrient availability. Our main research question examines how and to which extent the composition of roots exudates – i.e. C compound composition of sugars and organic acids – affects FF turnover by changing microbial and fungal composition and subsequent, SOM and litter decomposition. Hence, the role of P9 in the RU is to provide information on species and site-specific leaf and litter quality, nutrient use strategies, and in particular, the sugar and organic acid composition of root exudation from tree mycorrhiza association. Moreover, the lateral distribution of nutrients from leaf litter mediated by trees will be investigated within the joint 15N litter dispersal experiment (coordinated by P2). The outcome will be linked to microbial community (P7) and mycorrhiza types (P8), and will be related to nutrient uptake rates depending on nutrient availability provided by P4.
不同树种对枯枝落叶分解动态有较强的控制作用,表现为枯枝落叶的输入与分解之间处于稳定状态。从枫木到山毛榉再到云杉,林木厚度逐渐增加(Vester dal et al.2008年),这三个树种在我们拟议的乡郊规划中心。FF动态受叶片和根凋落物质量以及根沉积的控制,根沉积包括根分泌物、边界根细胞和粘液,它们是根际真菌和微生物的碳和营养来源(Haichar等人)。2014年)。通过光合作用合成的碳水化合物约有30%被转移到地下,即转移到树根及其共生菌根真菌和相关微生物群落(Pausch和Kuzyakov,2018,Pena等人,2010)。我们推测,树木的养分利用策略,特别是根系分泌物的C成分,对菌根、腐生和微生物群落和活动有很大的影响,从而影响FF养分的有效性。我们的主要研究问题是考察根系分泌物的组成--即糖和有机酸的C化合物组成--如何以及在多大程度上通过改变微生物和真菌组成以及随后的SOM和凋落物分解来影响FF周转率。因此,P9在RU中的作用是提供有关树种和特定地点的叶片和凋落物质量、养分利用策略的信息,特别是树木菌根协会根系分泌物的糖和有机酸组成的信息。此外,将在联合15N凋落物分散实验(由P2协调)中调查树木介导的叶凋落物养分的横向分布。结果将与微生物群落(P7)和菌根类型(P8)有关,并将与养分吸收速率有关,具体取决于P4提供的养分可获得性。

项目成果

期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)

数据更新时间:{{ journalArticles.updateTime }}

{{ 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 }}

Professorin Dr. Christiane Werner其他文献

Professorin Dr. Christiane Werner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 }}

{{ truncateString('Professorin Dr. Christiane Werner', 18)}}的其他基金

Ecological relevance of carbon isotope fractionation during dark respiration
暗呼吸过程中碳同位素分馏的生态相关性
  • 批准号:
    157216006
  • 财政年份:
    2009
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Changing ground water levels: the impact on an invasive species and native plant communities in a Mediterranean dune ecosystem
地下水位变化:对地中海沙丘生态系统中入侵物种和本土植物群落的影响
  • 批准号:
    21479940
  • 财政年份:
    2006
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Analyse der saisonalen Änderungen der Photosynthese- und Atmungskomponenten der Nettokohlenstoffflüsse eines mediterranen Hartlaubwaldes durch stabile Isotope
地中海硬叶林净碳通量的光合和呼吸成分季节变化的稳定同位素分析
  • 批准号:
    5400388
  • 财政年份:
    2003
  • 资助金额:
    --
  • 项目类别:
    Research Grants

相似海外基金

Characterization of the interaction mechanism between carbon cluster and dislocation in steel
钢中碳簇与位错相互作用机制的表征
  • 批准号:
    22KJ2381
  • 财政年份:
    2023
  • 资助金额:
    --
  • 项目类别:
    Grant-in-Aid for JSPS Fellows
Collaborative Research: Exploring the dynamic interaction between pyrogenic carbon and extracellular enzymes and its impacts on organic matter cycling in fire-impacted environments
合作研究:探索热解碳和细胞外酶之间的动态相互作用及其对受火灾影响的环境中有机物循环的影响
  • 批准号:
    2120547
  • 财政年份:
    2021
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
Collaborative Research: Exploring the dynamic interaction between pyrogenic carbon and extracellular enzymes and its impacts on organic matter cycling in fire-impacted environments
合作研究:探索热解碳和细胞外酶之间的动态相互作用及其对受火灾影响的环境中有机物循环的影响
  • 批准号:
    2120122
  • 财政年份:
    2021
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
Controlling the Interaction Between Carbon Dioxide and Cementitious Materials Using Biomimetic Molecules
使用仿生分子控制二氧化碳和胶凝材料之间的相互作用
  • 批准号:
    2028462
  • 财政年份:
    2020
  • 资助金额:
    --
  • 项目类别:
    Standard Grant
Reconstruction of atmospheric carbon dioxide concentration during the last 6 million years and the study of the interaction between atmospheric carbon dioxide and climate
近600万年大气二氧化碳浓度重建及大气二氧化碳与气候相互作用研究
  • 批准号:
    19H05595
  • 财政年份:
    2019
  • 资助金额:
    --
  • 项目类别:
    Grant-in-Aid for Scientific Research (S)
Studies on carbon storage function of interaction between soil organic matter and aluminium-alphen in Andosol
安多土壤中土壤有机质与铝-阿尔芬相互作用的碳储存功能研究
  • 批准号:
    16K05624
  • 财政年份:
    2016
  • 资助金额:
    --
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Understanding the interaction between methionine metabolism and epigenetics in cancer
了解癌症中蛋氨酸代谢与表观遗传学之间的相互作用
  • 批准号:
    338154
  • 财政年份:
    2015
  • 资助金额:
    --
  • 项目类别:
    Fellowship Programs
Design on the surface properties of nano carbon materials, and evaluation of interaction between bioactive compounds: for application of functional biomaterials
纳米碳材料表面性能设计及生物活性化合物间相互作用评价:功能性生物材料应用
  • 批准号:
    24592947
  • 财政年份:
    2012
  • 资助金额:
    --
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Control of novel pressure-induced interaction working between hydrogen and carbon, and evaluation of its mechanism
氢与碳之间新型压力诱导相互作用的控制及其机理评估
  • 批准号:
    24550150
  • 财政年份:
    2012
  • 资助金额:
    --
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Surface scientific approaches to clarify the interaction between metal catalysts and carbon supports
阐明金属催化剂和碳载体之间相互作用的表面科学方法
  • 批准号:
    23360352
  • 财政年份:
    2011
  • 资助金额:
    --
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
{{ showInfoDetail.title }}

作者:{{ showInfoDetail.author }}

知道了