The effect of eelgrass meadows on the morphodynamics of coastal sedimentary systems
鳗草草甸对滨海沉积体系形态动力学的影响
基本信息
- 批准号:RGPIN-2019-04588
- 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
- 来源:
- 关键词:
项目摘要
The goal of this proposal is to advance our understanding of the role of vegetation in coastal geomorphological change, by studying eelgrass meadows along the Fraser River, BC. The world's coastlines are highly dynamic systems that form the battleground of various socio-economic and ecological stakeholders and are experiencing increased pressure through ongoing anthropogenic alteration and accelerated sea-level rise. Conventionally, geomorphologists have examined coastal landscape evolution as a function of adjustments of flow, sediment transport and seabed morphology. More recently, it has been acknowledged that this conventional approach fails to integrate the influence of aquatic vegetation such as eelgrass meadows in coastal morphodynamics. Yet, the presence of vegetation is known to alter fluid dynamics by providing resistance to the flow and causing turbulence production. Vegetation is often referred to as a geomorphic engineer', due to propensity to cause sediment deposition. However, a process-based understanding of the sediment dynamics around vegetation is still lacking.
Building on my previous work on flow and sediment transport in sand-bedded environments, the specific objective of this proposed program is therefore to examine how the presence of eelgrass influences spatio-temporal variations in turbulent flow structure, bed shear stress, and sediment dynamics from an individual eelgrass patch to the large-scale dynamics of coastal bays. The work takes on an end-to-end approach starting with initial direct field observations in Years 1-3, systematic laboratory experiments in Year 3, through to regional-scale numerical simulations using industry-leading modelling suites in Years 3-5. Field campaigns comprise ship- and lander-based hydro-acoustic surveys using our own instrumentation over the eelgrass system of the Fraser River Delta, the largest continuous eelgrass system in BC. The field experiments will inform systematic laboratory experiments using simulated eelgrass blades and sandy sediment to arrive at parameterizations of bed shear stress and reduced settling velocities for implementation in numerical models. Our modelling effort will begin with a critical test of current formulations for vegetation and will systematically test and implement our new parametrization. The models will then be used to examine the effect of changes in vegetation on tidal flat drainage and sediment transport environment of tidal flats. Our ultimate aim is to adequately represent coastal vegetation in these model suites, which will allow a more accurate prediction of coastal change following development or climatic changes. The proposed work is therefore timely and of immediate interest to a number of coastal stakeholders, including developers, consultants, engineers, environmentalists, and coastal communities. Our usage of industry-leading, open-soure modelling software will ensure valuable contribution and lasting impact for potential end-users.
本提案的目标是通过研究不列颠哥伦比亚省弗雷泽河沿岸的鳗草草甸,促进我们对植被在沿海地貌变化中的作用的理解。世界海岸线是一个高度动态的系统,形成了各种社会经济和生态利益相关者的战场,并且由于持续的人为改变和海平面加速上升而承受着越来越大的压力。传统上,地貌学家研究了沿海景观的演变,将其作为水流、沉积物运输和海底形态调整的功能。最近,人们认识到,这种传统方法未能将水生植被(如大叶藻草甸)对海岸形态动力学的影响整合起来。然而,已知植被的存在通过提供对流动的阻力和引起湍流的产生来改变流体动力学。植被通常被称为“地貌工程师”,因为它们有引起沉积物沉积的倾向。然而,基于过程的对植被周围沉积物动力学的理解仍然缺乏。
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 }}
Kwoll, Eva其他文献
Kwoll, Eva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('Kwoll, Eva', 18)}}的其他基金
The effect of eelgrass meadows on the morphodynamics of coastal sedimentary systems
鳗草草甸对滨海沉积体系形态动力学的影响
- 批准号:
RGPIN-2019-04588 - 财政年份:2022
- 资助金额:
$ 1.82万 - 项目类别:
Discovery Grants Program - Individual
The effect of eelgrass meadows on the morphodynamics of coastal sedimentary systems
鳗草草甸对滨海沉积体系形态动力学的影响
- 批准号:
RGPIN-2019-04588 - 财政年份:2021
- 资助金额:
$ 1.82万 - 项目类别:
Discovery Grants Program - Individual
The effect of eelgrass meadows on the morphodynamics of coastal sedimentary systems
鳗草草甸对滨海沉积体系形态动力学的影响
- 批准号:
RGPIN-2019-04588 - 财政年份:2019
- 资助金额:
$ 1.82万 - 项目类别:
Discovery Grants Program - Individual
The effect of eelgrass meadows on the morphodynamics of coastal sedimentary systems
鳗草草甸对滨海沉积体系形态动力学的影响
- 批准号:
DGECR-2019-00196 - 财政年份:2019
- 资助金额:
$ 1.82万 - 项目类别:
Discovery Launch Supplement
相似海外基金
Collaborative Research: modifiers of ocean acidification effects on top-down control in eelgrass habitat
合作研究:海洋酸化效应的调节剂对鳗草栖息地自上而下控制的影响
- 批准号:
2241907 - 财政年份:2023
- 资助金额:
$ 1.82万 - 项目类别:
Standard Grant
Collaborative Research: modifiers of ocean acidification effects on top-down control in eelgrass habitat
合作研究:海洋酸化效应的调节剂对鳗草栖息地自上而下控制的影响
- 批准号:
2241906 - 财政年份:2023
- 资助金额:
$ 1.82万 - 项目类别:
Standard Grant
The effect of eelgrass meadows on the morphodynamics of coastal sedimentary systems
鳗草草甸对滨海沉积体系形态动力学的影响
- 批准号:
RGPIN-2019-04588 - 财政年份:2022
- 资助金额:
$ 1.82万 - 项目类别:
Discovery Grants Program - Individual
Spatial and temporal variability in ecosystem services among eelgrass (Zostera marina) meadows in a cold-temperate system
冷温带系统中大叶草(Zostera marina)草甸生态系统服务的时空变异
- 批准号:
547883-2020 - 财政年份:2022
- 资助金额:
$ 1.82万 - 项目类别:
Alexander Graham Bell Canada Graduate Scholarships - Doctoral
Excavating eelgrass: effects of sea otter bioturbation
挖掘鳗草:海獭生物扰动的影响
- 批准号:
565959-2021 - 财政年份:2021
- 资助金额:
$ 1.82万 - 项目类别:
Alexander Graham Bell Canada Graduate Scholarships - Master's
Spatial and temporal variability in ecosystem services among eelgrass (Zostera marina) meadows in a cold-temperate system
冷温带系统中大叶草(Zostera marina)草甸生态系统服务的时空变异
- 批准号:
547883-2020 - 财政年份:2021
- 资助金额:
$ 1.82万 - 项目类别:
Alexander Graham Bell Canada Graduate Scholarships - Doctoral
Eelgrass and oyster cultivation
鳗草和牡蛎养殖
- 批准号:
563130-2021 - 财政年份:2021
- 资助金额:
$ 1.82万 - 项目类别:
University Undergraduate Student Research Awards
The effect of eelgrass meadows on the morphodynamics of coastal sedimentary systems
鳗草草甸对滨海沉积体系形态动力学的影响
- 批准号:
RGPIN-2019-04588 - 财政年份:2021
- 资助金额:
$ 1.82万 - 项目类别:
Discovery Grants Program - Individual
Identification of tipping points to improve management of eelgrass (Zostera marina)
确定临界点以改善大叶藻(Zostera marina)的管理
- 批准号:
518641-2018 - 财政年份:2020
- 资助金额:
$ 1.82万 - 项目类别:
Alexander Graham Bell Canada Graduate Scholarships - Doctoral
Predictive Modelling of the Spatial Impact of Climate Change on Eelgrass (Zostera marina)
气候变化对大叶藻(Zostera marina)空间影响的预测模型
- 批准号:
553501-2020 - 财政年份:2020
- 资助金额:
$ 1.82万 - 项目类别:
Alexander Graham Bell Canada Graduate Scholarships - Master's