Microbial diversity and function in forest soils and the influence of rhizosphere carbon flow
森林土壤微生物多样性和功能及根际碳流的影响
基本信息
- 批准号:298233-2009
- 负责人:
- 金额:$ 5.17万
- 依托单位:
- 依托单位国家:加拿大
- 项目类别:Discovery Grants Program - Individual
- 财政年份:2013
- 资助国家:加拿大
- 起止时间:2013-01-01 至 2014-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Forestry has a critical role in Canada's economic prosperity with nearly half Canada's landmass being forested and 10% of the world's forests being within Canada. In British Columbia forestry is the key industry with 56% of BC being forested. In addition, forests are vital for moderating climate and filtering air and water and as places of recreation. There is increasing emphasis on sustainable forest management, balancing resource extraction with retention of ecosystem services and biodiversity. In order to provide a basis for rational decisions forest managers must have sufficient knowledge about how forests function and how their management affects that functioning. Nutrient cycling and uptake have been shown to be critical processes for the health of forest ecosystems. The soil microbial community has a key role in nutrient cycling processes in soil through decomposition of soil organic matter and turnover of inorganic nutrients and minerals and, therefore, forest productivity. Despite the recognised importance of the soil microbial community in nutrient acquisition for trees we know very little about the diversity of microorganisms in soil, what their functional roles are and what factors influence the size, the structure and the activity of the microbial community. Developing management strategies for these systems requires an understanding of the processes regulating soil nutrient cycling and the impact of various management practices on these processes. This research program uses a variety of novel molecular and biochemical methods coupled with stable isotope labeling approaches to identify the important micro-organisms, elucidate their role in soil processes such as nutrient cycling and the storage or release of carbon, and clarify the manner in which they interact with plant roots. This will result in a better understanding of ecosystem functioning.
林业在加拿大的经济繁荣中发挥着关键作用,加拿大近一半的陆地被森林覆盖,世界上10%的森林位于加拿大境内。在不列颠哥伦比亚省,林业是关键产业,不列颠哥伦比亚省56%的土地被森林覆盖。此外,森林对于调节气候、过滤空气和水以及作为娱乐场所至关重要。人们越来越重视可持续森林管理,在资源开采与保持生态系统服务和生物多样性之间取得平衡。为了提供合理决策的基础,森林管理人员必须充分了解森林如何运作以及森林管理如何影响这种运作。事实证明,养分循环和吸收是森林生态系统健康的关键过程。土壤微生物群落在土壤养分循环过程中发挥关键作用,通过分解土壤有机质和周转无机养分和矿物质,从而提高森林生产力。尽管人们认识到土壤微生物群落在树木获取养分方面的重要性,但我们对土壤中微生物的多样性、它们的功能作用以及影响微生物群落的大小、结构和活性的因素知之甚少。为这些系统制定管理策略需要了解土壤养分循环的调节过程以及各种管理措施对这些过程的影响。该研究计划使用各种新的分子和生物化学方法,结合稳定同位素标记方法,以确定重要的微生物,阐明它们在土壤过程中的作用,如养分循环和碳的储存或释放,并阐明它们与植物根系相互作用的方式。这将有助于更好地了解生态系统的功能。
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)
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Grayston, Susan其他文献
N2-Fixation and Seedling Growth Promotion of Lodgepole Pine by Endophytic Paenibacillus polymyxa
- DOI:
10.1007/s00248-013-0196-1 - 发表时间:
2013-08-01 - 期刊:
- 影响因子:3.6
- 作者:
Anand, Richa;Grayston, Susan;Chanway, Christopher - 通讯作者:
Chanway, Christopher
Grayston, Susan的其他文献
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{{ truncateString('Grayston, Susan', 18)}}的其他基金
Diversity and function of plant microbiomes
植物微生物组的多样性和功能
- 批准号:
RGPIN-2019-04161 - 财政年份:2019
- 资助金额:
$ 5.17万 - 项目类别:
Discovery Grants Program - Individual
Specificity of plant-microbe interactions in forest soils
森林土壤中植物-微生物相互作用的特异性
- 批准号:
RGPIN-2014-04017 - 财政年份:2018
- 资助金额:
$ 5.17万 - 项目类别:
Discovery Grants Program - Individual
Specificity of plant-microbe interactions in forest soils
森林土壤中植物-微生物相互作用的特异性
- 批准号:
RGPIN-2014-04017 - 财政年份:2017
- 资助金额:
$ 5.17万 - 项目类别:
Discovery Grants Program - Individual
Specificity of plant-microbe interactions in forest soils
森林土壤中植物-微生物相互作用的特异性
- 批准号:
RGPIN-2014-04017 - 财政年份:2016
- 资助金额:
$ 5.17万 - 项目类别:
Discovery Grants Program - Individual
Assessing arbuscular mycorrhizal inoculum and deer repellent as tools to increase western redcedar (Thuja plicata) regeneration in the presence of invasive deer
评估丛枝菌根接种物和驱鹿剂作为在入侵鹿存在的情况下增加西部红杉(Thuja plicata)再生的工具
- 批准号:
500767-2016 - 财政年份:2016
- 资助金额:
$ 5.17万 - 项目类别:
Engage Grants Program
Specificity of plant-microbe interactions in forest soils
森林土壤中植物-微生物相互作用的特异性
- 批准号:
RGPIN-2014-04017 - 财政年份:2015
- 资助金额:
$ 5.17万 - 项目类别:
Discovery Grants Program - Individual
Evaluation of sulfur-enhanced fertilizers and mounding to increase forest growth and related carbon storage and reduce greenhouse gas emissions
评估硫强化肥料和堆土以增加森林生长和相关碳储存并减少温室气体排放
- 批准号:
428948-2011 - 财政年份:2014
- 资助金额:
$ 5.17万 - 项目类别:
Collaborative Research and Development Grants
The potential of retention trees to mitigate post-harvest soil carbon loss through reduction of root and soil organic matter decomposition mediated by the fungal community
滞留树通过减少真菌群落介导的根部和土壤有机质分解来减轻收获后土壤碳损失的潜力
- 批准号:
430189-2012 - 财政年份:2014
- 资助金额:
$ 5.17万 - 项目类别:
Strategic Projects - Group
Assessing the greenhouse gas emission mitigation potential of using wood waste in waste-to-energy generation through structural equation modeling
通过结构方程模型评估利用木材废料进行废物发电的温室气体减排潜力
- 批准号:
477568-2014 - 财政年份:2014
- 资助金额:
$ 5.17万 - 项目类别:
Engage Grants Program
Specificity of plant-microbe interactions in forest soils
森林土壤中植物-微生物相互作用的特异性
- 批准号:
RGPIN-2014-04017 - 财政年份:2014
- 资助金额:
$ 5.17万 - 项目类别:
Discovery Grants Program - Individual
相似国自然基金
不同栽培环境条件下不同基因型牡丹根部细菌种群多样性特征
- 批准号:31070617
- 批准年份:2010
- 资助金额:30.0 万元
- 项目类别:面上项目
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- 批准号:30770069
- 批准年份:2007
- 资助金额:30.0 万元
- 项目类别:面上项目
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