"Collaborative Research: Hydrological Controls over Biogeochemistry and Microbial Community Structure and Function across Terrestrial/Aquatic Interfaces in a Polar Desert"
“合作研究:极地沙漠中陆地/水生界面生物地球化学和微生物群落结构和功能的水文控制”
基本信息
- 批准号:0723643
- 负责人:
- 金额:$ 3.89万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2006
- 资助国家:美国
- 起止时间:2006-12-24 至 2008-08-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Aquatic-terrestrial transition zones are crucial environments in understanding the biogeochemistry of landscapes. In temperate watersheds, these areas are generally dominated by riparian zones, which have been identified as regions of special interest for biogeochemistry because of the increased microbial activity in these locations, and because of the importance of these hydrological margins in facilitating and buffering hydrologic and biogeochemical exchanges between terrestrial and aquatic ecosystems. In the Antarctic Dry Valleys, terrestrial-aquatic transition zones are intriguing landscape features because of the vast importance of water in this polar desert, and because the material and energy budgets of dry valley ecosystems are linked by hydrology. Hydrological margins in aquatic-terrestrial transition zones will be studied in the Dry Valleys of Antarctica to answer two overarching questions: (1) what are the major controls over hydrologic and biogeochemical exchange across aquaticterrestrial transition zones and (2) to what extent do trends in nutrient cycling (e.g. nitrogen cycling) across these transition zones reflect differences in microbial communities or function vs. differences in the physical and chemical environment (e.g., redox potential)? The hydrologic gradients that define these interfaces provide the opportunity to assess the relative influence of physical conditions and microbial biodiversity and functioning upon biogeochemical cycling. Coordinated hydrologic, biogeochemical, and molecular microbial studies will be executed within hydrologic margins with the following research objectives: to determine the role of sediment characteristics, permafrost and active layer dynamics, and topography on sub-surface water content and distribution in hydrologic margins, to determine the extent to which transformations of nitrogen in hydrological margins are influenced by physical conditions (i.e., moisture, redox potential and pH) or by the presence of specific microbial communities (e.g., denitrifiers), and to characterize the microbial community structure and function of saturated zones. This proposed research will provide an improved understanding of the interaction of liquid water, soils, microbial communities, and biogeochemistry within the important hydrologic margin landscape units of the dry valleys. Dry valleys streams and lakes are unique because there is no influence of higher vegetation on the movement of water and may therefore provide a model system for understanding physical and hydrological influences on microbial ecology and biogeochemistry. Hence the findings will contribute to Antarctic science as well as the broader study of riparian zones and hydrologic margins worldwide. Graduate students and undergraduate students will be involved with fieldwork and research projects. Information will be disseminated through a project web site, and outreach activities will include science education in local elementary, middle and high schools near the three universities involved.
水陆过渡带是了解景观生物地球化学的关键环境。在温带流域,这些地区一般以河岸带为主,由于这些地区微生物活动增加,而且这些水文边缘在促进和缓冲陆地和水生生态系统之间的水文和生物地球化学交流方面具有重要意义,因此被确定为生物地球化学特别感兴趣的地区。在南极干旱河谷,由于水在这一极地沙漠中的巨大重要性,以及干旱山谷生态系统的物质和能量收支与水文学联系在一起,陆地-水生过渡地带是有趣的景观特征。将在南极洲干旱河谷研究水陆过渡带的水文边缘,以回答两个关键问题:(1)水陆过渡带的水文和生物地球化学交换的主要控制因素是什么;(2)这些过渡带的营养循环趋势(例如氮循环)在多大程度上反映了微生物群落或功能的差异与物理和化学环境的差异(例如氧化还原电位)?确定这些界面的水文梯度为评估自然条件、微生物生物多样性和功能对生物地球化学循环的相对影响提供了机会。将在水文边缘范围内进行协调的水文、生物地质化学和分子微生物研究,研究目标如下:确定沉积物特性、多年冻土和活跃层动力学以及地形对水文边缘地下水分含量和分布的作用,确定物理条件(即水分、氧化还原电位和pH)或特定微生物群落(例如反硝化细菌)对水文边缘中氮的转化的影响程度,并描述饱和地带的微生物群落结构和功能。这项拟议的研究将提供一个更好的了解液态水、土壤、微生物群落和生物地球化学在干旱山谷重要的水文边缘景观单元内的相互作用。干旱山谷、溪流和湖泊是独一无二的,因为较高的植被对水的运动没有影响,因此可以为了解物理和水文对微生物生态和生物地球化学的影响提供一个模式系统。因此,这些发现将有助于南极科学以及对全世界河岸带和水文边缘的更广泛研究。研究生和本科生将参与实地考察和研究项目。将通过一个项目网站传播信息,外联活动将包括在所涉三所大学附近的当地小学、初中和高中进行科学教育。
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 }}
John Barrett其他文献
Central venous oxygen saturation, arterial base deficit, and lactate concentration in trauma patients.
创伤患者的中心静脉血氧饱和度、动脉血碱不足和乳酸浓度。
- DOI:
- 发表时间:
1995 - 期刊:
- 影响因子:0
- 作者:
Bannon Mp;O'Neill Cm;Matthew J. Martin;Ilstrup Dm;Fish Nm;John Barrett - 通讯作者:
John Barrett
Concomitant Administration of Gene-Modified T Cells Expressing a Chimeric CD16-CD3ζ Receptor with Mogamulizmab Synergistically Suppresses Adult T Cell Leukemia Cells in Vivo
表达嵌合 CD16-CD3 z 受体的基因修饰 T 细胞与 Mogamulizmab 联合给药可协同抑制体内成人 T 细胞白血病细胞
- DOI:
- 发表时间:
2014 - 期刊:
- 影响因子:0
- 作者:
Kazushi Tanimoto ;Hiroshi Fujiwara;Hiroki Tanaka;Fumihiro Ochi ;Hiroaki Asai;Sachiko Okamoto;JunichiMineno ;Kiyotaka Kuzushima;Hiroshi Shiku;John Barrett;and Masaki Yasukawa - 通讯作者:
and Masaki Yasukawa
Breeding behaviour of pilot whales revealed by DNA fingerprinting
通过 DNA 指纹技术揭示领航鲸的繁殖行为
- DOI:
10.1038/hdy.1991.64 - 发表时间:
1991-08-01 - 期刊:
- 影响因子:3.900
- 作者:
Bill Amos;John Barrett;Gabriel A Dover - 通讯作者:
Gabriel A Dover
Emergency Thoracotomy: Care of the Patient in the ER
- DOI:
10.1016/s0001-2092(07)69716-6 - 发表时间:
1987-12-01 - 期刊:
- 影响因子:
- 作者:
John Barrett - 通讯作者:
John Barrett
Analysis of 18 recent cases of penetrating injuries to the common and internal carotid arteries
- DOI:
10.1016/s0002-9610(88)80363-5 - 发表时间:
1988-08-01 - 期刊:
- 影响因子:
- 作者:
Joseph P. Meyer;James Walsh;John Barrett;James J. Schuler;Joseph R. Durham;Jens Eldrup-Jorgensen;Thomas H. Schwarcz;D. Preston Flanigan - 通讯作者:
D. Preston Flanigan
John Barrett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('John Barrett', 18)}}的其他基金
Conference: Scientific Assessment of the McMurdo Dry Valleys Ecosystem: Environmental Stewardship in a Time of Dynamic Change
会议:麦克默多干谷生态系统的科学评估:动态变化时期的环境管理
- 批准号:
2409327 - 财政年份:2024
- 资助金额:
$ 3.89万 - 项目类别:
Standard Grant
Collaborative Research: Moving Beyond the Margins: Modeling Water Availability and Habitable Terrestrial Ecosystems in the Polar Desert of the McMurdo Dry Valleys
合作研究:超越边缘:麦克默多干谷极地沙漠的水资源可用性和宜居陆地生态系统建模
- 批准号:
2044924 - 财政年份:2021
- 资助金额:
$ 3.89万 - 项目类别:
Standard Grant
Delivering net zero - the role of research
实现净零排放——研究的作用
- 批准号:
EP/V011960/1 - 财政年份:2020
- 资助金额:
$ 3.89万 - 项目类别:
Research Grant
COLLABORATIVE RESEARCH: Remote Characterization of Microbial Mats in Taylor Valley, Antarctica, through In Situ Sampling and Spectral Validation
合作研究:通过原位采样和光谱验证对南极洲泰勒谷微生物垫进行远程表征
- 批准号:
1744785 - 财政年份:2018
- 资助金额:
$ 3.89万 - 项目类别:
Standard Grant
End Use Energy Demand Centre titled "Centre for Industrial Energy, Materials, Energy and Products (CIE-MAP)
最终用途能源需求中心名为“工业能源、材料、能源和产品中心 (CIE-MAP)”
- 批准号:
EP/N022645/1 - 财政年份:2015
- 资助金额:
$ 3.89万 - 项目类别:
Research Grant
Dissertation Research: The influence of resource gradients on soil bacterial communities in a simple ecosystem
论文研究:简单生态系统中资源梯度对土壤细菌群落的影响
- 批准号:
1210570 - 财政年份:2012
- 资助金额:
$ 3.89万 - 项目类别:
Standard Grant
Dissertation Research: Do the concomitant effects of pH and ammonium concentration on ammonia availability explain differential ammonia oxidation by bacteria and archaea?
论文研究:pH 值和铵浓度对氨利用率的共同影响是否可以解释细菌和古细菌对氨的氧化差异?
- 批准号:
1210607 - 财政年份:2012
- 资助金额:
$ 3.89万 - 项目类别:
Standard Grant
Collaborative Research: Controls over the Spatial Distribution and Activity of Microbial Communities in Antarctic Soils
合作研究:控制南极土壤微生物群落的空间分布和活动
- 批准号:
0944556 - 财政年份:2010
- 资助金额:
$ 3.89万 - 项目类别:
Standard Grant
Collaborative Research: The Role of Snow Patches on the Spatial Distribution of Soil Microbial Communities and Biogeochemical Cycling in the Antarctic Dry Valleys
合作研究:雪斑对南极干谷土壤微生物群落空间分布和生物地球化学循环的作用
- 批准号:
0838922 - 财政年份:2009
- 资助金额:
$ 3.89万 - 项目类别:
Standard Grant
"Collaborative Research: Hydrological Controls over Biogeochemistry and Microbial Community Structure and Function across Terrestrial/Aquatic Interfaces in a Polar Desert"
“合作研究:极地沙漠中陆地/水生界面生物地球化学和微生物群落结构和功能的水文控制”
- 批准号:
0338174 - 财政年份:2004
- 资助金额:
$ 3.89万 - 项目类别:
Standard Grant
相似国自然基金
Research on Quantum Field Theory without a Lagrangian Description
- 批准号:24ZR1403900
- 批准年份:2024
- 资助金额:0.0 万元
- 项目类别:省市级项目
Cell Research
- 批准号:31224802
- 批准年份:2012
- 资助金额:24.0 万元
- 项目类别:专项基金项目
Cell Research
- 批准号:31024804
- 批准年份:2010
- 资助金额:24.0 万元
- 项目类别:专项基金项目
Cell Research (细胞研究)
- 批准号:30824808
- 批准年份:2008
- 资助金额:24.0 万元
- 项目类别:专项基金项目
Research on the Rapid Growth Mechanism of KDP Crystal
- 批准号:10774081
- 批准年份:2007
- 资助金额:45.0 万元
- 项目类别:面上项目
相似海外基金
Collaborative Research: OAC Core: Large-Scale Spatial Machine Learning for 3D Surface Topology in Hydrological Applications
合作研究:OAC 核心:水文应用中 3D 表面拓扑的大规模空间机器学习
- 批准号:
2414185 - 财政年份:2024
- 资助金额:
$ 3.89万 - 项目类别:
Standard Grant
Collaborative Research: A hydrological seesaw and its effect on alkalinity dynamics in estuaries along a climate gradient
合作研究:水文跷跷板及其对气候梯度河口碱度动态的影响
- 批准号:
2319434 - 财政年份:2023
- 资助金额:
$ 3.89万 - 项目类别:
Standard Grant
Collaborative Research: A hydrological seesaw and its effect on alkalinity dynamics in estuaries along a climate gradient
合作研究:水文跷跷板及其对气候梯度河口碱度动态的影响
- 批准号:
2319435 - 财政年份:2023
- 资助金额:
$ 3.89万 - 项目类别:
Standard Grant
GP-UP: Collaborative Research: Developing a diverse hydrology workforce through an undergraduate hydrological research experience in a coastal California watershed
GP-UP:合作研究:通过加州沿海流域的本科生水文学研究经验培养多元化的水文学队伍
- 批准号:
2330988 - 财政年份:2023
- 资助金额:
$ 3.89万 - 项目类别:
Standard Grant
Collaborative Research: IRES Track I: Post-hurricane recovery of island freshwater lenses: Understanding the impact of social and hydrological dynamics
合作研究:IRES 第一轨:飓风后岛屿淡水透镜体的恢复:了解社会和水文动态的影响
- 批准号:
2246400 - 财政年份:2023
- 资助金额:
$ 3.89万 - 项目类别:
Standard Grant
Collaborative Research: IRES Track I: Post-hurricane recovery of island freshwater lenses: Understanding the impact of social and hydrological dynamics
合作研究:IRES 第一轨:飓风后岛屿淡水透镜体的恢复:了解社会和水文动态的影响
- 批准号:
2420753 - 财政年份:2023
- 资助金额:
$ 3.89万 - 项目类别:
Standard Grant
Collaborative Research: IRES Track I: Post-hurricane recovery of island freshwater lenses: Understanding the impact of social and hydrological dynamics
合作研究:IRES 第一轨:飓风后岛屿淡水透镜体的恢复:了解社会和水文动态的影响
- 批准号:
2246402 - 财政年份:2023
- 资助金额:
$ 3.89万 - 项目类别:
Standard Grant
Collaborative Research: IRES Track I: Post-hurricane recovery of island freshwater lenses: Understanding the impact of social and hydrological dynamics
合作研究:IRES 第一轨:飓风后岛屿淡水透镜体的恢复:了解社会和水文动态的影响
- 批准号:
2246401 - 财政年份:2023
- 资助金额:
$ 3.89万 - 项目类别:
Standard Grant
Collaborative Research: IRES Track I: Post-hurricane recovery of island freshwater lenses: Understanding the impact of social and hydrological dynamics
合作研究:IRES 第一轨:飓风后岛屿淡水透镜体的恢复:了解社会和水文动态的影响
- 批准号:
2246403 - 财政年份:2023
- 资助金额:
$ 3.89万 - 项目类别:
Standard Grant
GP-UP: Collaborative Research: Developing a diverse hydrology workforce through an undergraduate hydrological research experience in a coastal California watershed
GP-UP:合作研究:通过加州沿海流域的本科生水文学研究经验培养多元化的水文学队伍
- 批准号:
2119296 - 财政年份:2022
- 资助金额:
$ 3.89万 - 项目类别:
Standard Grant