Collaborative Research: Reconstructing Late Holocene Ecosystem and Climate Shifts from Peat Records in the Western Antarctic Peninsula
合作研究:根据南极半岛西部的泥炭记录重建全新世晚期生态系统和气候变化
基本信息
- 批准号:1745068
- 负责人:
- 金额:$ 38.44万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2018
- 资助国家:美国
- 起止时间:2018-09-01 至 2022-08-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Warming on the western Antarctic Peninsula in the later 20th century has caused widespread changes in the cryosphere (ice and snow) and terrestrial ecosystems. These recent changes along with longer-term climate and ecosystem histories will be deciphered using peat deposits. Peat accumulation can be used to assess the rate of glacial retreat and provide insight into ecological processes on newly deglaciated landscapes in the Antarctic Peninsula. This project builds on data suggesting recent ecosystem transformations that are linked to past climate of the western Antarctic Peninsula and provide a timeline to assess the extent and rate of recent glacial change. The study will produce a climate record for the coastal low-elevation terrestrial region, which will refine the major climate shifts of up to 6 degrees C in the recent past (last 12,000 years). A novel terrestrial record of the recent glacial history will provide insight into observed changes in climate and sea-ice dynamics in the western Antarctic Peninsula and allow for comparison with off-shore climate records captured in sediments. Observations and discoveries from this project will be disseminated to local schools and science centers. The project provides training and career development for a postdoctoral scientist as well as graduate and undergraduate students.The research presents a new systematic survey to reconstruct ecosystem and climate change for the coastal low-elevation areas on the western Antarctic Peninsula (AP) using proxy records preserved in late Holocene peat deposits. Moss and peat samples will be collected and analyzed to generate a comprehensive data set of late-Holocene climate change and ecosystem dynamics. The goal is to document and understand the transformations of landscape and terrestrial ecosystems on the western AP during the late Holocene. The testable hypothesis is that coastal regions have experienced greater climate variability than evidenced in ice-core records and that past warmth has facilitated dramatic ecosystem and cryosphere response. A primary product of the project is a robust reconstruction of late Holocene climate changes for coastal low-elevation terrestrial areas using multiple lines of evidence from peat-based biological and geochemical proxies, which will be used to compare with climate records derived from marine sediments and ice cores from the AP region. These data will be used to test several ideas related to novel peat-forming ecosystems (such as Antarctic hairgrass bogs) in past warmer climates and climate controls over ecosystem establishment and migration to help assess the nature of the Little Ice Age cooling and cryosphere response. The chronology of peat cores will be established by radiocarbon dating of macrofossils and Bayesian modeling. The high-resolution time series of ecosystem and climate changes will help put the observed recent changes into a long-term context to bridge climate dynamics over different time scales.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
20世纪后期南极半岛西部变暖导致冰冻圈(冰雪)和陆地生态系统发生广泛变化。这些最近的变化以及更长期的气候和生态系统历史将通过泥炭沉积来破译。泥炭堆积可以用来评估冰川消退的速度,并提供对南极半岛新消融冰川景观的生态过程的洞察。该项目以数据为基础,表明最近的生态系统变化与南极半岛西部过去的气候有关,并为评估最近冰川变化的程度和速度提供了一个时间表。这项研究将创造沿海低海拔陆地地区的气候记录,这将完善最近过去(过去12,000年)高达6摄氏度的主要气候变化。对近期冰川历史的一种新的陆地记录将提供对南极半岛西部气候和海冰动态观测变化的洞察,并使之能够与在沉积物中捕获的近海气候记录进行比较。该项目的观察和发现将传播到当地学校和科学中心。该项目为博士后科学家以及研究生和本科生提供培训和职业发展。该研究提出了一项新的系统调查,利用保存在全新世晚期泥炭沉积中的替代记录重建南极半岛西部沿海低海拔地区的生态系统和气候变化。将收集和分析苔藓和泥炭样本,以生成关于晚全新世气候变化和生态系统动态的全面数据集。其目标是记录和了解西部AP地区在全新世晚期的景观和陆地生态系统的变化。可验证的假设是,沿海地区经历了比冰芯记录所证明的更大的气候变化,过去的温暖促进了生态系统和冰冻圈的戏剧性反应。该项目的一个主要成果是,利用泥炭生物和地球化学替代物的多种证据,有力地重建了沿海低海拔陆地地区晚全新世的气候变化,这些证据将用于与从AP地区的海洋沉积物和冰芯获得的气候记录进行比较。这些数据将被用来测试过去较温暖气候中与新的泥炭形成生态系统(如南极毛草沼泽)有关的几个想法,以及对生态系统建立和迁移的气候控制,以帮助评估小冰期冷却和冰冻圈反应的性质。泥炭岩芯的年代学将通过对大型化石的放射性碳测年和贝叶斯模型来建立。生态系统和气候变化的高分辨率时间序列将有助于将观察到的最近变化置于长期背景下,以跨越不同时间尺度的气候动态。该奖项反映了NSF的法定使命,并通过使用基金会的智力优势和更广泛的影响审查标准进行评估,被认为值得支持。
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 }}
Robert Booth其他文献
Infection-Specific Biomarkers in the Synovial Fluid
- DOI:
10.1016/j.arth.2006.12.064 - 发表时间:
2007-02-01 - 期刊:
- 影响因子:
- 作者:
Carl Deirmengian;Abdul Tarabishy;Marco Caicedo;Nadim Halleb;Joshua Jacobs;Craig Della Valle;Jess Lonner;Robert Booth - 通讯作者:
Robert Booth
Transcutaneous fine-needle aspiration biopsy of pancreatic cancer
- DOI:
10.1007/bf02924221 - 发表时间:
1990-08-01 - 期刊:
- 影响因子:1.600
- 作者:
Kitai Kim;Robert Booth;Jonathan Myles - 通讯作者:
Jonathan Myles
Hospital discharges for marijuana dependence over time in Colorado
- DOI:
10.1016/j.drugalcdep.2015.07.1066 - 发表时间:
2015-11-01 - 期刊:
- 影响因子:
- 作者:
Jonathan M. Davis;Katie Suleta;Karen F. Corsi;Robert Booth - 通讯作者:
Robert Booth
Pathways, targets and temporalities: Analysing English agriculture's net zero futures
路径、目标和时间性:分析英国农业的净零未来
- DOI:
10.1177/25148486211064962 - 发表时间:
2021 - 期刊:
- 影响因子:0
- 作者:
Robert Booth - 通讯作者:
Robert Booth
Reliability and Validity of Not-in-Treatment Drug Users' Follow-Up Self-Reports
- DOI:
10.1023/a:1026454506898 - 发表时间:
2000-12-01 - 期刊:
- 影响因子:2.400
- 作者:
Mark E. Johnson;Dennis G. Fisher;Isaac Montoya;Robert Booth;Fen Rhodes;Marcia Andersen;Zhangqing Zhuo;Mark Williams - 通讯作者:
Mark Williams
Robert Booth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('Robert Booth', 18)}}的其他基金
Collaborative Research: Neotoma Paleoecology Database, a Multi-Proxy, International, Community-Curated Data Resource for Global Change Research
合作研究:Neotoma 古生态学数据库,一个用于全球变化研究的多代理、国际、社区策划的数据资源
- 批准号:
1948386 - 财政年份:2020
- 资助金额:
$ 38.44万 - 项目类别:
Continuing Grant
NNA: Collaborative Research: MSB-FRA: Peat Expansion in Arctic Tundra - Pattern, Process, and the Implication for the Carbon Cycle (TundraPEAT)
NNA:合作研究:MSB-FRA:北极苔原泥炭扩张 - 模式、过程以及对碳循环的影响 (TundraPEAT)
- 批准号:
1802810 - 财政年份:2018
- 资助金额:
$ 38.44万 - 项目类别:
Standard Grant
Collaborative Research: Neotoma Paleoecology Database, Community-led Cyberinfrastructure for Global Change Research
合作研究:Neotoma 古生态学数据库、社区主导的全球变化研究网络基础设施
- 批准号:
1550716 - 财政年份:2016
- 资助金额:
$ 38.44万 - 项目类别:
Continuing Grant
Collaborative Research: Drought as a trigger for rapid state shifts in kettlehole ecosystems
合作研究:干旱是壶穴生态系统状态快速转变的触发因素
- 批准号:
1118676 - 财政年份:2011
- 资助金额:
$ 38.44万 - 项目类别:
Continuing Grant
Dissertation Research: The sensitivity of kettlehole ecosystems to abrupt drought-induced transformation
论文研究:壶穴生态系统对干旱引起的突然转变的敏感性
- 批准号:
1011224 - 财政年份:2010
- 资助金额:
$ 38.44万 - 项目类别:
Standard Grant
Continental patterns of moisture anomalies associated with late Holocene mid-latitude megadroughts
与全新世晚期中纬度特大干旱相关的大陆水分异常模式
- 批准号:
0902441 - 财政年份:2009
- 资助金额:
$ 38.44万 - 项目类别:
Standard Grant
Collaborative Research: Multiproxy Archives of Late Holocene Climate Variability from Ombrotrophic Peatlands in Eastern North America
合作研究:北美东部全营养泥炭地晚全新世气候变化的多代理档案
- 批准号:
0625298 - 财政年份:2006
- 资助金额:
$ 38.44万 - 项目类别:
Standard Grant
Collaborative Research: Multiproxy Archives of Late Holocene Climate Variability from Ombrotrophic Peatlands in Eastern North America
合作研究:北美东部全营养泥炭地晚全新世气候变化的多代理档案
- 批准号:
0402410 - 财政年份:2004
- 资助金额:
$ 38.44万 - 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: Reconstructing Holocene glacier lengths through time to address climate model-data disagreements
合作研究:随着时间的推移重建全新世冰川长度以解决气候模型数据分歧
- 批准号:
2303294 - 财政年份:2023
- 资助金额:
$ 38.44万 - 项目类别:
Standard Grant
Collaborative Research: Reconstructing Holocene glacier lengths through time to address climate model-data disagreements
合作研究:随着时间的推移重建全新世冰川长度以解决气候模型数据分歧
- 批准号:
2303293 - 财政年份:2023
- 资助金额:
$ 38.44万 - 项目类别:
Standard Grant
Collaborative Research: P2C2--Reconstructing Southern Rocky Mountains Warm Season Temperature for the Past 2000 Years
合作研究:P2C2——重建落基山脉南部近2000年暖季温度
- 批准号:
2202400 - 财政年份:2022
- 资助金额:
$ 38.44万 - 项目类别:
Standard Grant
Collaborative Research: Reconstructing Climate Linkages Across the Tropical Oceans Over the Last Millennium
合作研究:重建过去千年热带海洋的气候联系
- 批准号:
2202793 - 财政年份:2022
- 资助金额:
$ 38.44万 - 项目类别:
Standard Grant
Collaborative Research: Reconstructing bottom water temperatures from bivalves on the continental shelf: Holocene history as a window to the future in the Mid-Atlantic
合作研究:重建大陆架双壳类底层水温:全新世历史是大西洋中部未来的窗口
- 批准号:
2202944 - 财政年份:2022
- 资助金额:
$ 38.44万 - 项目类别:
Standard Grant
Collaborative Research: Reconstructing Classic Genetic and Social Kinship Networks
合作研究:重建经典遗传和社会亲属关系网络
- 批准号:
2150813 - 财政年份:2022
- 资助金额:
$ 38.44万 - 项目类别:
Standard Grant
Collaborative Research: Reconstructing the missing record of late Proterozoic tectonism along the western margin of Laurentia using deep-time thermochronology
合作研究:利用深时热年代学重建劳伦大陆西缘晚元古代构造运动的缺失记录
- 批准号:
2140481 - 财政年份:2022
- 资助金额:
$ 38.44万 - 项目类别:
Standard Grant
Collaborative Research: Reconstructing Climate Linkages Across the Tropical Oceans Over the Last Millennium
合作研究:重建过去千年热带海洋的气候联系
- 批准号:
2202794 - 财政年份:2022
- 资助金额:
$ 38.44万 - 项目类别:
Standard Grant
P2C2: Collaborative Research: The Role of Seasonality in Abrupt Climate Change - a Test by Reconstructing Fluctuations of a Late-Glacial Ice Mass in Eastern North America
P2C2:合作研究:季节性在气候突变中的作用——通过重建北美东部晚冰期冰块波动进行的测试
- 批准号:
2202791 - 财政年份:2022
- 资助金额:
$ 38.44万 - 项目类别:
Standard Grant
P2C2: Collaborative Research: The Role of Seasonality in Abrupt Climate Change - a Test by Reconstructing Fluctuations of a Late-Glacial Ice Mass in Eastern North America
P2C2:合作研究:季节性在气候突变中的作用——通过重建北美东部晚冰期冰块波动进行的测试
- 批准号:
2202798 - 财政年份:2022
- 资助金额:
$ 38.44万 - 项目类别:
Standard Grant