Dynamic Repellency, Wettability and Capillarity as Primary Drivers for Water Flow and Chemical Transport in Soils and Groundwater in the Critical Zone

动态排斥性、润湿性和毛细管作用是关键区域土壤和地下水中水流和化学物质输送的主要驱动力

基本信息

  • 批准号:
    RGPIN-2020-06614
  • 负责人:
  • 金额:
    $ 1.82万
  • 依托单位:
  • 依托单位国家:
    加拿大
  • 项目类别:
    Discovery Grants Program - Individual
  • 财政年份:
    2020
  • 资助国家:
    加拿大
  • 起止时间:
    2020-01-01 至 2021-12-31
  • 项目状态:
    已结题

项目摘要

The critical zone which extends form the soil surface down to groundwater below the regional water table supports almost all terrestrial life and contains most of the terrestrial biomass. Our ability to better quantitatively predict water flow, chemical movement and gas exchange in the subsurface is essential and foundational to accurately assessing many environmental problems and associated management and/or remediation schemes. A better fundamental understanding of mechanisms and processes controlling the movement of water and the fate and transport of chemical contaminants in the soil and groundwater is ever more urgent given our best estimates of pending climate change impacts on temperatures and precipitation. Our current knowledge and ability to quantitatively predict water flow, contaminant transport remain critically limited when both air (gas-phase) and water coexist (multi-phase fluids) in the subsurface. This is the case in unsaturated soils and entrapped air in shallow groundwaters of the critical zone, and particularly limited when the wettability/repellency of the soils and rocks is dynamic (time-dependent). It is critically limited when spilled contaminants have surface active (surfactant) properties. Examples of soils which are exceptionally sensitive are water repellent dry soils with high organic matter contents, post wildfire soils, and soils contaminated by petroleum products and industrial solvents. The problem of wettability and capillarity changing over time are complicated by the fact that numerous environmental contaminants and naturally occurring compounds act as surface active compounds (surfactants) which substantially change the surface tension at the air water interface, the wettability and contact angle at solid surfaces. I have extensive research experience and a long international reputation for my innovative research and publications on solute concentration dependent capillarity, contact angle dynamics and fractional wettability effects on soil water behavior. Those contributions, knowledge and expertise are foundational to the proposed research. The scientific approach will combine well instrumented laboratory-based flow cell experiments, mathematical model development, and field studies. The primary targeted outcomes over the next 5 years will be to develop proof of concept data sets, conceptual models, first-order dynamic hydraulic functions and quantitative first-order mathematical models of water infiltration and retention in soils expressing dynamic wettability and capillarity. The research will generate simple first-order practical models for specialists and non-specialists (e.g. environmental remediation specialists, foresters, eco-hydrologists) to be able to calculate more accurate and reliable water infiltration, contaminant transport behaviours and resultant soil
临界带从土壤表面向下延伸至

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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Smith, James其他文献

Impacts of 'Curiosity' baiting on feral cat populations in woodland habitats of Kangaroo Island, South Australia
  • DOI:
    10.1071/wr21090
  • 发表时间:
    2022-04-26
  • 期刊:
  • 影响因子:
    1.9
  • 作者:
    Hohnen, Rosemary;Smith, James;Mooney, Trish
  • 通讯作者:
    Mooney, Trish
Use of streamnormal forces within an array of tidal power harvesters.
  • DOI:
    10.1371/journal.pone.0270578
  • 发表时间:
    2022
  • 期刊:
  • 影响因子:
    3.7
  • 作者:
    Viola, Ignazio Maria;Gao, Zhi;Smith, James
  • 通讯作者:
    Smith, James
Circulating anti-nuclear autoantibodies in COVID-19 survivors predict long COVID symptoms.
  • DOI:
    10.1183/13993003.00970-2022
  • 发表时间:
    2023-01
  • 期刊:
  • 影响因子:
    24.3
  • 作者:
    Son, Kiho;Jamil, Rameen;Chowdhury, Abhiroop;Mukherjee, Manan;Venegas, Carmen;Miyasaki, Kate;Zhang, Kayla;Patel, Zil;Salter, Brittany;Yuen, Agnes Che Yan;Lau, Kevin Soon-Keen;Cowbrough, Braeden;Radford, Katherine;Huang, Chynna;Kjarsgaard, Melanie;Dvorkin-Gheva, Anna;Smith, James;Li, Quan-Zhen;Waserman, Susan;Ryerson, Christopher J.;Nair, Parameswaran;Ho, Terence;Balakrishnan, Narayanaswamy;Nazy, Ishac;Bowdish, Dawn M. E.;Svenningsen, Sarah;Carlsten, Chris;Mukherjee, Manali
  • 通讯作者:
    Mukherjee, Manali
Identifying individuals with intellectual disability who access mental health support and are at high risk for adverse clinical outcomes: cohort study.
  • DOI:
    10.1192/bjo.2023.574
  • 发表时间:
    2023-10-10
  • 期刊:
  • 影响因子:
    5.4
  • 作者:
    Baksh, R. Asaad;Sheehan, Rory;Hassiotis, Angela;Smith, James;Strydom, Andre
  • 通讯作者:
    Strydom, Andre
Assessing Compound Flooding From Landfalling Tropical Cyclones on the North Carolina Coast
  • DOI:
    10.1029/2019wr026788
  • 发表时间:
    2020-04-01
  • 期刊:
  • 影响因子:
    5.4
  • 作者:
    Gori, Avantika;Lin, Ning;Smith, James
  • 通讯作者:
    Smith, James

Smith, James的其他文献

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{{ truncateString('Smith, James', 18)}}的其他基金

Dynamic Repellency, Wettability and Capillarity as Primary Drivers for Water Flow and Chemical Transport in Soils and Groundwater in the Critical Zone
动态排斥性、润湿性和毛细管作用是关键区域土壤和地下水中水流和化学物质输送的主要驱动力
  • 批准号:
    RGPIN-2020-06614
  • 财政年份:
    2022
  • 资助金额:
    $ 1.82万
  • 项目类别:
    Discovery Grants Program - Individual
Dynamic Repellency, Wettability and Capillarity as Primary Drivers for Water Flow and Chemical Transport in Soils and Groundwater in the Critical Zone
动态排斥性、润湿性和毛细管作用是关键区域土壤和地下水中水流和化学物质输送的主要驱动力
  • 批准号:
    RGPIN-2020-06614
  • 财政年份:
    2021
  • 资助金额:
    $ 1.82万
  • 项目类别:
    Discovery Grants Program - Individual
Gulf of Main 2050 - Huntsman Workshop
美因湾 2050 - Huntsman 研讨会
  • 批准号:
    537152-2018
  • 财政年份:
    2018
  • 资助金额:
    $ 1.82万
  • 项目类别:
    Connect Grants Level 2
Science Literacy Week
科学素养周
  • 批准号:
    524320-2018
  • 财政年份:
    2018
  • 资助金额:
    $ 1.82万
  • 项目类别:
    PromoScience Supplement for Science Literacy Week
Science Odyssey
科学奥德赛
  • 批准号:
    522998-2018
  • 财政年份:
    2018
  • 资助金额:
    $ 1.82万
  • 项目类别:
    PromoScience Supplement for Science Odyssey
Growing educational opportunities at the Huntsman Marine Science Centre
亨斯迈海洋科学中心不断增加的教育机会
  • 批准号:
    531721-2018
  • 财政年份:
    2018
  • 资助金额:
    $ 1.82万
  • 项目类别:
    PromoScience
The Role of Fractional Dynamic Wettability as a Primary Determinant for Flow and Transport in Soils and the Vadose Zone.
分数动态润湿性作为土壤和包气区流动和传输的主要决定因素的作用。
  • 批准号:
    RGPIN-2014-04214
  • 财政年份:
    2018
  • 资助金额:
    $ 1.82万
  • 项目类别:
    Discovery Grants Program - Individual
The Role of Fractional Dynamic Wettability as a Primary Determinant for Flow and Transport in Soils and the Vadose Zone.
分数动态润湿性作为土壤和包气区流动和传输的主要决定因素的作用。
  • 批准号:
    RGPIN-2014-04214
  • 财政年份:
    2017
  • 资助金额:
    $ 1.82万
  • 项目类别:
    Discovery Grants Program - Individual
The Role of Fractional Dynamic Wettability as a Primary Determinant for Flow and Transport in Soils and the Vadose Zone.
分数动态润湿性作为土壤和包气区流动和传输的主要决定因素的作用。
  • 批准号:
    RGPIN-2014-04214
  • 财政年份:
    2016
  • 资助金额:
    $ 1.82万
  • 项目类别:
    Discovery Grants Program - Individual
The Role of Fractional Dynamic Wettability as a Primary Determinant for Flow and Transport in Soils and the Vadose Zone.
分数动态润湿性作为土壤和包气区流动和传输的主要决定因素的作用。
  • 批准号:
    RGPIN-2014-04214
  • 财政年份:
    2015
  • 资助金额:
    $ 1.82万
  • 项目类别:
    Discovery Grants Program - Individual

相似海外基金

Dynamic Repellency, Wettability and Capillarity as Primary Drivers for Water Flow and Chemical Transport in Soils and Groundwater in the Critical Zone
动态排斥性、润湿性和毛细管作用是关键区域土壤和地下水中水流和化学物质输送的主要驱动力
  • 批准号:
    RGPIN-2020-06614
  • 财政年份:
    2022
  • 资助金额:
    $ 1.82万
  • 项目类别:
    Discovery Grants Program - Individual
Dynamic Repellency, Wettability and Capillarity as Primary Drivers for Water Flow and Chemical Transport in Soils and Groundwater in the Critical Zone
动态排斥性、润湿性和毛细管作用是关键区域土壤和地下水中水流和化学物质输送的主要驱动力
  • 批准号:
    RGPIN-2020-06614
  • 财政年份:
    2021
  • 资助金额:
    $ 1.82万
  • 项目类别:
    Discovery Grants Program - Individual
Collaborative Research: Engineered Water Repellency to Mitigate Frost Susceptibility: Decoupling Osmotic and Matric Potential
合作研究:工程防水性以减轻霜冻敏感性:渗透和基质势的解耦
  • 批准号:
    1928813
  • 财政年份:
    2019
  • 资助金额:
    $ 1.82万
  • 项目类别:
    Standard Grant
Collaborative Research: Engineered Water Repellency to Mitigate Frost Susceptibility: Decoupling Osmotic and Matric Potential
合作研究:工程防水性以减轻霜冻敏感性:渗透和基质势的解耦
  • 批准号:
    1928825
  • 财政年份:
    2019
  • 资助金额:
    $ 1.82万
  • 项目类别:
    Standard Grant
Collaborative Research: Engineered Water Repellency to Mitigate Frost Susceptibility: Decoupling Osmotic and Matric Potential
合作研究:工程防水性以减轻霜冻敏感性:渗透和基质势的解耦
  • 批准号:
    1947009
  • 财政年份:
    2019
  • 资助金额:
    $ 1.82万
  • 项目类别:
    Standard Grant
SBIR Phase I: Enhancing the skin microbiome for mosquito repellency: Next generation mosquito repellent derived from big data analysis
SBIR 第一阶段:增强皮肤微生物群以实现驱蚊作用:基于大数据分析的下一代驱蚊剂
  • 批准号:
    1843179
  • 财政年份:
    2019
  • 资助金额:
    $ 1.82万
  • 项目类别:
    Standard Grant
A pore network model of soil water repellency: Model implementation and experimental validation
土壤拒水性的孔隙网络模型:模型实现和实验验证
  • 批准号:
    316989341
  • 财政年份:
    2016
  • 资助金额:
    $ 1.82万
  • 项目类别:
    Research Grants
Analysis of molecular and genetic mechanism of super water-repellency in rice
水稻超疏水性分子及遗传机制分析
  • 批准号:
    16H04857
  • 财政年份:
    2016
  • 资助金额:
    $ 1.82万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Photo-controlled surface water repellency for smart cell separation system
用于智能细胞分离系统的光控表面拒水性
  • 批准号:
    15K12547
  • 财政年份:
    2015
  • 资助金额:
    $ 1.82万
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
Molecular Mechanism of Pyrethroid Repellency in Drosophila Melanogaster and Mosquitoes
果蝇和蚊子拟除虫菊酯驱避作用的分子机制
  • 批准号:
    9125851
  • 财政年份:
    2015
  • 资助金额:
    $ 1.82万
  • 项目类别:
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