Evaluating nature based strategies in rural landscapes for managing low flows and stream temperatures

评估乡村景观中基于自然的策略，以管理低流量和溪流温度

基本信息

批准号：
2665770
负责人：
金额：
--
依托单位：
University of Aberdeen
依托单位国家：
英国
项目类别：
Studentship
财政年份：
2017
资助国家：
英国
起止时间：
2017 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=studentship-2665770
关键词：
Evaluating nature based strategies rural

项目摘要

Recent years have seen an increasing interest in alternative, nature based (as opposed to traditional engineering) solutions (NBS) for risk prevention from extreme hydrometeorological events. Such NBS are gaining momentum internationally and range from local storage ponds to entire river restoration projects, though key efforts typically involve efforts to slow or temporarily store flood water in the uplands. While there is a need for wider application-orientated frameworks for effective NBS planning, current knowledge is primarily based on isolated design strategies used at small scale sites. In addition, the urgent development of appropriate funding mechanisms lacks further scientific evidence on the multi-beneficial nature of NBS. This study will explore NBS strategies for mitigating low flows and increased water temperatures, which are predicted under future climate projections with prolonged warm and dry periods. By affecting the time-scales of water retention in different parts of the landscape, NBS has the potential to substantially impact on recharge, subsurface storage and flow pathways, which in turn have implications for e.g. water quality and temperature. As such, when designed in a more holistic framework, NBS can contribute to mitigating the impacts of climate change, and can be used to the benefit of (industry) end-users who rely on water quantity, quality and temperature standards. This includes the multi billion pound (CASE partner) distillery industry. The project will contribute to the knowledge on multi-purpose functioning and the placement of different NBS and provide a framework for integrated NBS design in the uplands. It addresses key deficiencies in the understanding of NBS impacts on recharge (and surface water ground water interactions) that could be beneficial to the full flow regime spectrum, including low flows; how this relates to landscape attributes; how these impacts affect stream temperatures/water quality; and how integrated NBS function to affect hydrological processes at the catchment scale.

近年来，人们对替代性，基于自然的（而不是传统工程）解决方案（NBS）的兴趣越来越多，以防止极端的水文学事件进行风险预防。此类NB在国际上获得势头，从当地存储池到整个河流修复项目，尽管关键努力通常涉及在高地慢慢或暂时存储洪水的努力。尽管需要更广泛的面向应用程序的框架来进行有效的NBS计划，但当前知识主要基于小型站点上使用的隔离设计策略。此外，紧急发展适当的融资机制缺乏有关NBS多性层面性质的进一步科学证据。这项研究将探索NBS策略，以减轻低流量和升高水温，这些策略是在未来的气候预测下预测的，温暖和干燥时期。通过影响景观不同部分的水分时间量表，NBS有可能对充值，地下存储和流道有很大的影响，而这反过来又对例如水质和温度。因此，当在更整体的框架中设计时，NB可以为缓解气候变化的影响做出贡献，并可以用于依靠水量，质量和温度标准的（行业）最终用户的好处。这包括数十亿英镑（案例伙伴）酿酒厂行业。该项目将有助于多功能功能和不同NB的位置的知识，并为高地集成NBS设计提供框架。它解决了了解NBS对充电（和地表水下水相互作用）的影响，这些缺陷可能对全流量频谱（包括低流量）有益；这与景观属性有何关系；这些影响如何影响溪流温度/水质；以及集成的NBS功能如何在集水量表上影响水文过程。