From Genes to Ecosystems: Mechanisms Controlling Long-Term Ecosystem Response to Nitrogen Deposition
从基因到生态系统:控制生态系统对氮沉积的长期响应的机制
基本信息
- 批准号:0614422
- 负责人:
- 金额:$ 81.5万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:2006
- 资助国家:美国
- 起止时间:2006-09-15 至 2007-07-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
From Genes to Ecosystems: Mechanisms Controlling Long-Term Ecosystem Response to Nitrogen DepositionScientists at Michigan Technological University and the University of Michigan have received funding from NSF to continue a long-term investigation of the effects of chronic nitrogen deposition on northern hardwood forests. The funding continues a long-term field experiment initiated 1993. Four study sites in Michigan, annually receive experimental additions of three grams of nitrate-nitrogen per square meter. After a decade, these forests grow faster, store more carbon, and leak significant quantities of nitrogen and carbon below the rooting zone. During the next three years, the investigators will determine how chronic nitrate additions alter the ability of soil fungi to break down litter and dead wood, leading to increased carbon storage in soils. They will study the way nitrate additions alter the symbiotic relationship between roots and mycorrhizal fungi, potentially allowing trees to allocate more photosynthate to growth. They will examine the effects of increased leaf nitrogen content on photosynthesis, which also can affect tree growth. Finally, they will study the effects of nitrogen additions on stand development (tree growth and mortality) and the accumulation of dead woody debris. This large dead material stores carbon and provides habitat for a more diverse plant and animal community.
从基因到生态系统:控制生态系统对氮沉积的长期反应的机制密歇根理工大学和密歇根大学的科学家们得到了美国国家科学基金会的资助,继续对长期氮沉积对北部阔叶林的影响进行研究。这笔资金是对1993年开始的长期实地试验的继续。密歇根州的四个研究地点每年每平方米实验增加3克硝酸盐氮。十年后,这些森林生长得更快,储存更多的碳,并将大量的氮和碳泄漏到根区以下。在接下来的三年里,研究人员将确定长期的硝酸盐添加如何改变土壤真菌分解落叶和枯木的能力,从而增加土壤中的碳储量。他们将研究硝酸盐添加如何改变根和菌根真菌之间的共生关系,潜在地允许树木为生长分配更多的光合作用。他们将研究叶片含氮量增加对光合作用的影响,光合作用也会影响树木的生长。最后,他们将研究氮素添加对林分发育(树木生长和死亡)和死木残留物积累的影响。这种巨大的死亡物质储存着碳,并为更多样化的动植物群落提供了栖息地。
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 }}
Kurt Pregitzer其他文献
Seasonal nitrogen and carbon concentrations in white, brown and woody fine roots of sugar maple (Acer saccharum Marsh)
- DOI:
10.1007/bf00041381 - 发表时间:
1990-08-01 - 期刊:
- 影响因子:4.100
- 作者:
Daniel Goldfarb;Ron Hendrick;Kurt Pregitzer - 通讯作者:
Kurt Pregitzer
Kurt Pregitzer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('Kurt Pregitzer', 18)}}的其他基金
Collaborative LTREB Renewal: Long-Term Ecosystem Response to Chronic Atmospheric Nitrate Deposition
LTREB 协作更新:生态系统对慢性大气硝酸盐沉积的长期响应
- 批准号:
1251441 - 财政年份:2013
- 资助金额:
$ 81.5万 - 项目类别:
Continuing Grant
Collaborative LTREB: Long-Term Ecosystem Response to Chronic Atmospheric Nitrate Deposition
协作 LTREB:生态系统对慢性大气硝酸盐沉积的长期响应
- 批准号:
1059720 - 财政年份:2010
- 资助金额:
$ 81.5万 - 项目类别:
Standard Grant
Collaborative LTREB: Long-Term Ecosystem Response to Chronic Atmospheric Nitrate Deposition
协作 LTREB:生态系统对慢性大气硝酸盐沉积的长期响应
- 批准号:
0816618 - 财政年份:2008
- 资助金额:
$ 81.5万 - 项目类别:
Standard Grant
From Genes to Ecosystems: Mechanisms Controlling Long-Term Ecosystem Response to Nitrogen Deposition
从基因到生态系统:控制生态系统对氮沉积的长期响应的机制
- 批准号:
0735116 - 财政年份:2007
- 资助金额:
$ 81.5万 - 项目类别:
Continuing Grant
The movement of elements through ecosystems: Major research instrumentation for the integration of research and education.
元素通过生态系统的运动:研究和教育一体化的主要研究仪器。
- 批准号:
0079566 - 财政年份:2000
- 资助金额:
$ 81.5万 - 项目类别:
Standard Grant
Plant-Microbe Interactions and the Production of Dissolved Organic Carbon and Nitrogen
植物-微生物相互作用以及溶解有机碳和氮的产生
- 批准号:
0075397 - 财政年份:2000
- 资助金额:
$ 81.5万 - 项目类别:
Continuing Grant
Collaborative Research: Factors Regulating Below-Ground Carbon Allocation in Terrestrial Ecosystems: A Cross-Site Experiment
合作研究:陆地生态系统地下碳分配的调节因素:跨站点实验
- 批准号:
9615509 - 财政年份:1997
- 资助金额:
$ 81.5万 - 项目类别:
Continuing Grant
Cycling of NO3-N in Northern Hardwood Forests: Regulation and Consequences of N Saturation
北方阔叶林中 NO3-N 的循环:氮饱和的调节和后果
- 批准号:
9629842 - 财政年份:1996
- 资助金额:
$ 81.5万 - 项目类别:
Continuing Grant
SGER: The Gribben Buried Forest: A Unique Opportunity for Exploratory Research
SGER:格里本埋藏森林:探索性研究的独特机会
- 批准号:
9521148 - 财政年份:1995
- 资助金额:
$ 81.5万 - 项目类别:
Standard Grant
Acquisition of Instrumentation to Quantify the Effects of Global Change on Plant Roots and Ecosystem Processes
购买仪器来量化全球变化对植物根系和生态系统过程的影响
- 批准号:
9413407 - 财政年份:1994
- 资助金额:
$ 81.5万 - 项目类别:
Standard Grant
相似海外基金
Illuminating Mechanisms of Resilience to Climate Change in Marine Ecosystems
阐明海洋生态系统抵御气候变化的机制
- 批准号:
RGPIN-2018-06669 - 财政年份:2022
- 资助金额:
$ 81.5万 - 项目类别:
Discovery Grants Program - Individual
Illuminating Mechanisms of Resilience to Climate Change in Marine Ecosystems
阐明海洋生态系统抵御气候变化的机制
- 批准号:
522477-2018 - 财政年份:2022
- 资助金额:
$ 81.5万 - 项目类别:
Discovery Grants Program - Accelerator Supplements
Structuring mechanisms and transformative potential of cold marine benthic ecosystems
冷海洋底栖生态系统的结构机制和变革潜力
- 批准号:
RGPIN-2021-03149 - 财政年份:2022
- 资助金额:
$ 81.5万 - 项目类别:
Discovery Grants Program - Individual
Illuminating Mechanisms of Resilience to Climate Change in Marine Ecosystems
阐明海洋生态系统抵御气候变化的机制
- 批准号:
RGPIN-2018-06669 - 财政年份:2021
- 资助金额:
$ 81.5万 - 项目类别:
Discovery Grants Program - Individual
Structuring mechanisms and transformative potential of cold marine benthic ecosystems
冷海洋底栖生态系统的结构机制和变革潜力
- 批准号:
RGPIN-2021-03149 - 财政年份:2021
- 资助金额:
$ 81.5万 - 项目类别:
Discovery Grants Program - Individual
Illuminating Mechanisms of Resilience to Climate Change in Marine Ecosystems
阐明海洋生态系统抵御气候变化的机制
- 批准号:
522477-2018 - 财政年份:2020
- 资助金额:
$ 81.5万 - 项目类别:
Discovery Grants Program - Accelerator Supplements
Illuminating Mechanisms of Resilience to Climate Change in Marine Ecosystems
阐明海洋生态系统抵御气候变化的机制
- 批准号:
RGPIN-2018-06669 - 财政年份:2020
- 资助金额:
$ 81.5万 - 项目类别:
Discovery Grants Program - Individual
NSF Postdoctoral Fellowship in Biology FY 2020: Mechanisms driving food web dynamics in terrestrial ecosystems
2020 财年 NSF 生物学博士后奖学金:陆地生态系统中食物网动态的驱动机制
- 批准号:
2010712 - 财政年份:2020
- 资助金额:
$ 81.5万 - 项目类别:
Fellowship Award
Illuminating Mechanisms of Resilience to Climate Change in Marine Ecosystems
阐明海洋生态系统抵御气候变化的机制
- 批准号:
RGPIN-2018-06669 - 财政年份:2019
- 资助金额:
$ 81.5万 - 项目类别:
Discovery Grants Program - Individual
Elucidation of collapsing and re-stabilizing mechanisms in microbial ecosystems
阐明微生物生态系统的崩溃和重新稳定机制
- 批准号:
19K22927 - 财政年份:2019
- 资助金额:
$ 81.5万 - 项目类别:
Grant-in-Aid for Challenging Research (Exploratory)