A Hydrogeophysical Study of Northern Raised Bogs: Implications for Generic Models of Peatland Formation, Vegetation Patterning, Pool Formation and Biogenic Gas Generation
北方凸起沼泽的水文地球物理研究:对泥炭地形成、植被格局、水池形成和生物气生成的通用模型的启示
基本信息
- 批准号:0609534
- 负责人:
- 金额:$ 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:2006-08-01 至 2008-07-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The processes of peatland development, peatland hydrology and carbon gas cycling within peat bogs need to be better understood in order to improve peatland management and predict the response of these unique ecosystems to climate change. In this research we will implement a geophysics-based approach to investigate three incompletely resolved, current issues in peatlands science: [1] the causes of the unique vegetation structure and patterning observed at the peatland surface [2] controls on the formation of pools encountered in many northern bogs; [3] the basin-scale volume and distribution of free-phase biogenic gasses in peatlands. Our hypothesis is that conceptual models we previously proposed to explain data obtained from Caribou Bog, a multi-unit raised bog in central Maine, pertain to the formation, vegetation patterning and carbon cycling of other ombotrophic raised bogs of Maine that display a surface vegetation and surface hydrology strikingly similar to Caribou Bog. As a first step in testing this hypothesis we plan to collect geophysical data in 1-2 (depending on field conditions encountered) previously unexplored bog of Maine. Our analysis will focus on whether these new datasets are consistent with our conceptual models based on Caribou Bog. The peatlands we have chosen exhibit strikingly similar surface hydrological and ecological characteristics. Our geophysical research using ground penetrating radar (GPR) and electrical imaging will determine whether the subsurface characteristics of these peatlands are correspondingly similar and support the existence of generic models linking subsurface characteristics of peatlands to surface vegetation, surface hydrology and land-atmosphere carbon exchange.A significant educational initiative of our project is a workshop on -Geophysics for Peatlands Scientists- that we will run in the summer of 2007. The fundamental objective of this workshop is to enhance utilization of geophysical methods by peatland scientists across the globe. Geophysical methods are currently underutilized by peatlands scientists and we believe that this is detrimental to the advancement of our understanding of peatland functions. Participants should gain sufficient knowledge to independently apply surface-based ground penetrating radar and electrical imaging methods to their own field-based research. We will train participants in the application of geophysical technologies in peatlands and in the unique interpretation of datasets produced. We expect to reap synergistic benefits as a result of bringing a group of peatland scientists to Maine to debate our hypotheses and the conceptual models we have so far presented in the literature. Our work has global implications as peatlands currently emit significant amounts of carbon gases (25-30% global total of methane), and the response of these large carbon reservoirs to climatic change is highly uncertain. Our work also has regional implications as peatlands are an important ecosystem in Maine, covering about 5% of the landscape. These systems likely play an important role in the hydrology and water quality of the state and correspondingly enhance the state biodiversity.
泥炭地的发展,泥炭地水文和泥炭沼泽内的碳气体循环的过程需要更好地理解,以改善泥炭地管理和预测这些独特的生态系统对气候变化的反应。 在这项研究中,我们将实施一种基于生态学的方法来调查泥炭地科学中三个尚未完全解决的当前问题:[1]泥炭地表面观察到的独特植被结构和图案的原因[2]控制许多北方沼泽中遇到的池的形成; [3]泥炭地中自由相生物气体的盆地规模体积和分布。我们的假设是,我们以前提出的概念模型来解释从驯鹿沼泽,多单元提出沼泽在中央缅因州,涉及到形成,植被格局和碳循环的其他富营养化提出沼泽的缅因州,显示表面植被和表面水文惊人的相似驯鹿沼泽。作为检验这一假设的第一步,我们计划在缅因州的1-2个(取决于遇到的现场条件)以前未勘探的沼泽中收集地球物理数据。我们的分析将集中在这些新的数据集是否与我们基于驯鹿沼泽的概念模型一致。 我们选择的泥炭地表现出惊人的相似的表面水文和生态特征。我们使用探地雷达(GPR)和电子成像的地球物理研究将确定这些泥炭地的地下特征是否相应地相似,并支持将泥炭地的地下特征与地表植被联系起来的通用模型的存在,地表水文学和陆地-大气碳交换。我们项目的一个重要的教育倡议是关于-泥炭地科学家地球物理学的研讨会-我们将在2007年夏天运行。本次研讨会的基本目标是提高地球物理方法的利用率的泥炭地科学家在地球仪。地球物理方法目前未被泥炭地科学家充分利用,我们认为这不利于我们对泥炭地功能的理解。参加者应获得足够的知识,能够独立地将地面穿透雷达和电子成像方法应用于自己的实地研究。我们将培训参与者在泥炭地应用地球物理技术,并在所产生的数据集的独特解释。 我们期望获得协同效益的结果,使一组泥炭地的科学家缅因州辩论我们的假设和概念模型,我们到目前为止在文献中提出。我们的工作具有全球影响,因为泥炭地目前排放大量的碳气体(占全球甲烷总量的25-30%),这些大型碳库对气候变化的反应具有高度不确定性。我们的工作也有区域影响,因为泥炭地是缅因州重要的生态系统,覆盖了大约5%的景观。这些系统可能在该州的水文和水质中发挥重要作用,并相应地增强该州的生物多样性。
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)
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Lee Slater其他文献
Imaging tropical peatlands in Indonesia using ground-penetrating radar (GPR) and electrical resistivity imaging (ERI): implications for carbon stock estimates and peat soil characterization
使用探地雷达 (GPR) 和电阻率成像 (ERI) 对印度尼西亚热带泥炭地进行成像:对碳储量估算和泥炭土表征的影响
- DOI:
- 发表时间:
2015 - 期刊:
- 影响因子:0
- 作者:
X. Comas;Neil Terry;Lee Slater;Matthew Warren;Randy Kolka;A. Kristijono;N. Sudiana;D. Nurjaman;T. Darusman - 通讯作者:
T. Darusman
Spectral induced polarization (SIP) measurements across a PFAS-contaminated source zone
跨全氟烷基和多氟烷基物质污染源区的频谱激发极化(SIP)测量
- DOI:
10.1016/j.jhazmat.2024.135829 - 发表时间:
2024-12-05 - 期刊:
- 影响因子:11.300
- 作者:
Ethan Siegenthaler;Sam Falzone;Charles Schaefer;Dale Werkema;Lee Slater - 通讯作者:
Lee Slater
Electrical geophysical monitoring of subsurface solute transport in low-relief agricultural landscapes in response to a simulated major rainfall event
对低起伏农业景观中地下溶质运移的电地球物理监测以响应模拟的一次重大降雨事件
- DOI:
10.1016/j.jhydrol.2024.132313 - 发表时间:
2025-01-01 - 期刊:
- 影响因子:6.300
- 作者:
Joshua Thompson;Anthony Buda;Amy Shober;Dimitrios Ntarlagiannis;Amy Collick;Casey Kennedy;Lauren Mosesso;Michael Reiner;John Triantafilis;Sapana Pokhrel;Lee Slater - 通讯作者:
Lee Slater
Multifocal Oral Langerhans Cell Histiocytosis
- DOI:
10.1016/j.joms.2011.01.008 - 发表时间:
2011-10-01 - 期刊:
- 影响因子:
- 作者:
Matthew Murray;Jeffrey Dean;Lee Slater - 通讯作者:
Lee Slater
Lee Slater的其他文献
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{{ truncateString('Lee Slater', 18)}}的其他基金
Collaborative Research: Hydrogeophysical monitoring and modeling of heterogeneity in salinization processes across the marsh-upland transition
合作研究:沼泽-高地转变过程中盐化过程异质性的水文地球物理监测和建模
- 批准号:
2316492 - 财政年份:2023
- 资助金额:
$ 5万 - 项目类别:
Standard Grant
Collaborative Research: How does the deep critical zone (CZ) structure impact the hydrology and coupled carbon cycling of northern peatlands?
合作研究:深层临界区(CZ)结构如何影响北部泥炭地的水文和耦合碳循环?
- 批准号:
2052004 - 财政年份:2021
- 资助金额:
$ 5万 - 项目类别:
Standard Grant
Collaborative Research: Investigating how transient electrical and magnetic signals relate to changes in recharge-driven redox state and iron mineral transformations
合作研究:研究瞬态电信号和磁信号如何与充电驱动的氧化还原状态和铁矿物转变的变化相关
- 批准号:
1742959 - 财政年份:2018
- 资助金额:
$ 5万 - 项目类别:
Continuing Grant
Collaborative Research: Towards a mechanistic prediction of methane ebullition fluxes from northern peatlands
合作研究:北部泥炭地甲烷沸腾通量的机械预测
- 批准号:
1623895 - 财政年份:2016
- 资助金额:
$ 5万 - 项目类别:
Standard Grant
Acquisition of Instrumentation to Support Earth Science Research with Near Surface Geophysical Technologies and to Engage Underrepresented Groups on Two Urban Campuses
采购仪器以支持近地表地球物理技术的地球科学研究,并让两个城市校园中代表性不足的群体参与进来
- 批准号:
1406430 - 财政年份:2014
- 资助金额:
$ 5万 - 项目类别:
Continuing Grant
COLLABORATIVE RESEARCH: INVESTIGATING HYDROLOGY-DRIVEN MODELS FOR METHANE CYCLING IN NORTHERN PEATLANDS
合作研究:研究北部泥炭地水文驱动的甲烷循环模型
- 批准号:
1045084 - 财政年份:2011
- 资助金额:
$ 5万 - 项目类别:
Continuing Grant
Collaborative Research: Hydrogeophysical Quantification of Hydraulic Conductivity from Electrical Measurements of the Effective Properties of Porous Media
合作研究:通过多孔介质有效特性的电测量对水力电导率进行水文地球物理量化
- 批准号:
0711053 - 财政年份:2007
- 资助金额:
$ 5万 - 项目类别:
Continuing Grant
Acquisition of Geophysical Instrumentation for Enhancing Peatlands Research and Training of a Diverse Student Population in New Jersey
采购地球物理仪器,以加强新泽西州泥炭地研究和多样化学生群体的培训
- 批准号:
0732250 - 财政年份:2007
- 资助金额:
$ 5万 - 项目类别:
Standard Grant
Collaborative Research: An Interdisciplinary Investigation of Groundwater-Carbon Coupling in Large Peat Basins and its Relation to Climate Change
合作研究:大型泥炭盆地地下水-碳耦合及其与气候变化关系的跨学科研究
- 批准号:
0628505 - 财政年份:2007
- 资助金额:
$ 5万 - 项目类别:
Standard Grant
Collaborative research: Geophysical evaluation of biogenic gasses in peatlands
合作研究:泥炭地生物气的地球物理评价
- 批准号:
0510370 - 财政年份:2005
- 资助金额:
$ 5万 - 项目类别:
Continuing Grant
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