RAPID: Impacts of a massive dust storm on a tropical forest

快速:大规模沙尘暴对热带森林的影响

基本信息

  • 批准号:
    2040201
  • 负责人:
  • 金额:
    $ 19.91万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Standard Grant
  • 财政年份:
    2020
  • 资助国家:
    美国
  • 起止时间:
    2020-08-15 至 2023-07-31
  • 项目状态:
    已结题

项目摘要

The movement of dust across the surface of the Earth is an important process that brings nutrients to ecosystems. This process is especially important for tropical ecosystems that are often extremely nutrient limited. While tropical forests in the Northern Hemisphere receive dust inputs annually from the Sahel and Sahara deserts, it is difficult to calculate the quantity of nutrients and the overall effect of the dust because of very low background rates of deposition. A major dust storm was generated in June 2020 from the deserts of North Africa that was transported across the Atlantic Ocean and into the Caribbean. The specific dust storm was estimated to be the biggest in the last fifty years. This event provides an opportunity to study the impacts of dust on tropical ecosystems. The project will quantify the dust inputs, their effect on soil and water quality, and their impacts on a tropical forest. The project will also develop a set of education and training opportunities for under-represented students. Broad dissemination of results will occur through making data available to the public. Multiple peer-reviewed manuscripts will be produced that describe this extreme event and its ecological significance for tropical ecosystems.Dust from the Sahel and Sahara of North Africa provides an annual and reliable source of calcium, magnesium, and phosphorous to tropical forests in the Caribbean. This dust is usually deposited in small quantities, but in June 2020 Puerto Rico experienced a large magnitude dust storm. The effects are likely to be significant for biological processes that can be nutrient-limited in highly weathered landscapes. To study these effects, sampling of soil water, wells, and streams will occur at high frequency (weekly) in watersheds of the Luquillo Mountains of Puerto Rico. A network of water quality sensors is already in place and will record water quality every 15 minutes, as well as the biotic signatures of stream primary productivity and respiration through changes in dissolved oxygen. These data will be used to test the hypothesis that massive dust inputs alter watershed-scale biogeochemical cycles. To understand the watershed-scale response, these dust inputs will be connected to soil solution and groundwater chemistry, following their subsequent export to the stream network, and the biotic response of the stream ecosystem will be assessed.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.
尘埃在地球表面的运动是一个重要过程,将营养带入生态系统。这个过程对于通常受到极限养分的热带生态系统尤为重要。北半球的热带森林每年从萨赫勒和撒哈拉沙漠中收到灰尘输入,但由于沉积的背景速率非常低,很难计算养分的数量和灰尘的总体影响。 2020年6月,北非沙漠造成了一场大型沙尘暴,该沙漠跨过大西洋跨过大西洋进入加勒比海地区。据估计,在过去五十年中,特定的沙尘暴估计是最大的。该活动提供了研究尘埃对热带生态系统的影响的机会。该项目将量化灰尘输入,对土壤和水质的影响以及它们对热带森林的影响。该项目还将为代表性不足的学生开发一系列教育和培训机会。通过向公众提供数据,将发生广泛的结果传播。将产生多个同行评审的手稿,描述了这一极端事件及其对热带生态系统的生态意义。北非萨赫勒和萨哈拉的dust提供了年度可靠的钙,镁,镁和磷磷的钙来源。这种灰尘通常少量沉积,但在2020年6月,波多黎各经历了大量的沙尘暴。这种影响对于可以在高度风化的景观中受到营养限制的生物过程可能很重要。为了研究这些影响,在波多黎各卢奎洛山脉的流域中,土壤水,水井和溪流的采样将在高频(每周)中发生。水质传感器的网络已经到位,每15分钟都会记录每15分钟的水质,以及通过溶解氧气的变化,溪流主要生产力和呼吸的生物特征。这些数据将用于检验以下假设:大量的灰尘输入改变了分水岭的生物地球化学周期。 To understand the watershed-scale response, these dust inputs will be connected to soil solution and groundwater chemistry, following their subsequent export to the stream network, and the biotic response of the stream ecosystem will be assessed.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.

项目成果

期刊论文数量(13)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Long‐Term Changes in Concentration and Yield of Riverine Dissolved Silicon From the Poles to the Tropics
从两极到热带河流溶解硅浓度和产量的长期变化
  • DOI:
    10.1029/2022gb007678
  • 发表时间:
    2023
  • 期刊:
  • 影响因子:
    5.2
  • 作者:
    Jankowski, Kathi Jo;Johnson, Keira;Sethna, Lienne;Julian, Paul;Wymore, Adam S.;Shogren, Arial J.;Thomas, Patrick K.;Sullivan, Pamela L.;McKnight, Diane M.;McDowell, William H.
  • 通讯作者:
    McDowell, William H.
Gradients of Anthropogenic Nutrient Enrichment Alter N Composition and DOM Stoichiometry in Freshwater Ecosystems
淡水生态系统中人为养分富集梯度改变氮组成和 DOM 化学计量
  • DOI:
    10.1029/2021gb006953
  • 发表时间:
    2021
  • 期刊:
  • 影响因子:
    5.2
  • 作者:
    Wymore, Adam S.;Johnes, Penny J.;Bernal, Susana;Brookshire, E. N. Jack;Fazekas, Hannah M.;Helton, Ashley M.;Argerich, Alba;Barnes, Rebecca T.;Coble, Ashley A.;Dodds, Walter K.
  • 通讯作者:
    Dodds, Walter K.
Viewing river corridors through the lens of critical zone science
  • DOI:
    10.3389/frwa.2023.1147561
  • 发表时间:
    2023-05
  • 期刊:
  • 影响因子:
    3.9
  • 作者:
    A. Wymore;A. Ward;E. Wohl;J. Harvey
  • 通讯作者:
    A. Wymore;A. Ward;E. Wohl;J. Harvey
Catchment concentration–discharge relationships across temporal scales: A review
  • DOI:
    10.1002/wat2.1702
  • 发表时间:
    2023-12
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Shannon L. Speir;Lucy A. Rose;J. Blaszczak;D. Kincaid;Hannah M. Fazekas;A. J. Webster;Michelle A. Wolford;Arial J. Shogren;A. Wymore
  • 通讯作者:
    Shannon L. Speir;Lucy A. Rose;J. Blaszczak;D. Kincaid;Hannah M. Fazekas;A. J. Webster;Michelle A. Wolford;Arial J. Shogren;A. Wymore
Direct and Indirect Drivers of Energy and Nutrient Availability in Freshwater Ecosystems Across Spatial Scales
  • DOI:
    10.1029/2022gb007580
  • 发表时间:
    2023-05
  • 期刊:
  • 影响因子:
    5.2
  • 作者:
    Hannah M. Fazekas;J. Brun;A. Wymore
  • 通讯作者:
    Hannah M. Fazekas;J. Brun;A. Wymore
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William McDowell其他文献

Plasmodium RNA triphosphatase validation as antimalarial target.
疟原虫 RNA 三磷酸酶作为抗疟靶点的验证。
  • DOI:
    10.1016/j.ijpddr.2024.100537
  • 发表时间:
    2024
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Sonia Moliner;N. Bahamontes;A. Rodríguez;Pamela M. Nassau;A. Argyrou;A. Bhardwaja;Rachel C. Buxton;David Calvo;Bernadette Mouzon;William McDowell;Alfonso Mendoza;Maria G. Gomez
  • 通讯作者:
    Maria G. Gomez
Acceptor specificity of the human leukocyte alpha3 fucosyltransferase: role of FucT-VII in the generation of selectin ligands.
人类白细胞 α3 岩藻糖基转移酶的受体特异性:FucT-VII 在选择素配体生成中的作用。
  • DOI:
  • 发表时间:
    1998
  • 期刊:
  • 影响因子:
    4.3
  • 作者:
    C. Britten;D. H. Eijnden;William McDowell;Valerie A. Kelly;Sara J. Witham;M. Edbrooke;Michael I. Bird;T. D. Vries;Nicholas Smithers
  • 通讯作者:
    Nicholas Smithers

William McDowell的其他文献

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{{ truncateString('William McDowell', 18)}}的其他基金

CAS-Climate: SRS-- U.S.-China: Quantifying drivers of greenhouse gas evasion from aquatic systems along rural-urban transitions to enhance regional sustainability
CAS-气候:SRS--美中:量化城乡转型过程中水生系统温室气体逃逸的驱动因素,以增强区域可持续性
  • 批准号:
    2215300
  • 财政年份:
    2022
  • 资助金额:
    $ 19.91万
  • 项目类别:
    Continuing Grant
Collaborative Research: Network Cluster: Geomicrobiology and Biogeochemistry in the Critical Zone
合作研究:网络集群:关键区域的地球微生物学和生物地球化学
  • 批准号:
    2217532
  • 财政年份:
    2021
  • 资助金额:
    $ 19.91万
  • 项目类别:
    Continuing Grant
Belmont Forum Collaborative Research: Abandonment and rebound: Societal views on landscape- and land-use change and their impacts on water and soils (ABRESO)
贝尔蒙特论坛合作研究:废弃和反弹:关于景观和土地利用变化及其对水和土壤影响的社会观点(ABRESO)
  • 批准号:
    2129383
  • 财政年份:
    2021
  • 资助金额:
    $ 19.91万
  • 项目类别:
    Continuing Grant
Collaborative Research: Network Cluster: Geomicrobiology and Biogeochemistry in the Critical Zone
合作研究:网络集群:关键区域的地球微生物学和生物地球化学
  • 批准号:
    2012403
  • 财政年份:
    2020
  • 资助金额:
    $ 19.91万
  • 项目类别:
    Continuing Grant
Deciphering the role of dissolved organic nitrogen in stream nutrient cycling
解读溶解有机氮在河流养分循环中的作用
  • 批准号:
    1556603
  • 财政年份:
    2016
  • 资助金额:
    $ 19.91万
  • 项目类别:
    Standard Grant
COLLABORATIVE RESEARCH: Defining Stream Biomes to Better Understand and Forecast Stream Ecosystem Change
合作研究:定义河流生物群落以更好地理解和预测河流生态系统变化
  • 批准号:
    1442444
  • 财政年份:
    2015
  • 资助金额:
    $ 19.91万
  • 项目类别:
    Standard Grant
Luquillo CZO: The role of hot spots and hot moments in tropical landscape evolution and functioning of the critical zone
Luquillo CZO:热点和热点时刻在热带景观演化和关键区域功能中的作用
  • 批准号:
    1331841
  • 财政年份:
    2013
  • 资助金额:
    $ 19.91万
  • 项目类别:
    Cooperative Agreement
Collaborative Research: A new paradigm for understanding how leaf litter quality affects stream ecosystems
合作研究:了解落叶质量如何影响河流生态系统的新范例
  • 批准号:
    1119843
  • 财政年份:
    2011
  • 资助金额:
    $ 19.91万
  • 项目类别:
    Standard Grant
OPUS: Synthesis of 25 Years of Research on the Biogeochemistry of a Tropical Rain Forest
OPUS:热带雨林生物地球化学 25 年研究综述
  • 批准号:
    0816727
  • 财政年份:
    2008
  • 资助金额:
    $ 19.91万
  • 项目类别:
    Standard Grant
Linking DOC and DON Fluxes to Soil Properties at Watershed and Landscape Scales
将 DOC 和 DON 通量与流域和景观尺度的土壤特性联系起来
  • 批准号:
    0108385
  • 财政年份:
    2001
  • 资助金额:
    $ 19.91万
  • 项目类别:
    Continuing Grant

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优先流对中俄原油管道沿线多年冻土水热稳定性的影响机制研究
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Using massive, multi-regional EHR data to estimate the impacts of climate change on fungal disease epidemiology in the U.S.
使用大量、多区域 EHR 数据来估计气候变化对美国真菌病流行病学的影响
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