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The river restoration 'ecological toolbox': simultaneously examining biomonitoring indices to guide catchment management strategies

河流恢复“生态工具箱”：同时检查生物监测指标以指导流域管理策略

基本信息

批准号：
2755899
负责人：
金额：
--
依托单位：
Loughborough University
依托单位国家：
英国
项目类别：
Studentship
财政年份：
2022
资助国家：
英国
起止时间：
2022 至无数据
项目状态：
未结题

来源：
https://gtr.ukri.org/projects?ref=studentship-2755899
关键词：
river restoration ecological toolbox simultaneously

项目摘要

Significant reductions in the biodiversity of freshwater ecosystems have prompted a surge in river restoration efforts in recent decades. However, restoration has often delivered modest ecological benefits. Therefore, tools that can identify the key pressure(s) compromising ecosystem health and help identify the likelihood of ecological recovery following restoration are urgently required. Macroinvertebrate biomonitoring tools developed in the UK could help address this pressing need as they characterise and quantify the ecological effects of different anthropogenic stressors - including eutrophication, flow regime alterations and fine sediment pressures. However, little research has examined the response of multiple biomonitoring indices simultaneously to inform sustainable river restoration strategies. This PhD will address this research gap by developing and testing an 'ecological toolbox' that identifies primary stressor(s) stressing river ecosystems and the likelihood of promoting ecological recovery after different restoration interventions. The PhD will draw on historic and contemporary river restoration projects across the UK to quantify macroinvertebrate communities responses to different interventions at different spatial scales. This will provide a greater causal understanding of the ecological mechanisms and macroinvertebrate community responses to different river restoration activities and highlight when and where effective measures have been implemented. This evidence will be used to further refine and improve the ecological toolbox and its ability to predict sustainable river restoration interventions.

近几十年来，淡水生态系统生物多样性的大幅减少促使河流恢复工作激增。然而，恢复往往带来有限的生态效益。因此，迫切需要能够确定损害生态系统健康的主要压力并帮助确定恢复后生态恢复的可能性的工具。在英国开发的大型无脊椎动物生物监测工具可以帮助解决这一紧迫的需求，因为它们可以识别和量化不同人为压力的生态影响-包括富营养化，水流状态改变和细沉积物压力。然而，很少有研究同时检查多个生物监测指标的响应，以告知可持续的河流恢复策略。这个博士将通过开发和测试一个“生态工具箱”来解决这个研究空白，该工具箱确定了主要的压力源（S）强调河流生态系统和不同恢复干预后促进生态恢复的可能性。博士将借鉴英国历史和当代河流恢复项目，量化大型无脊椎动物群落对不同空间尺度不同干预措施的反应。这将提供一个更大的因果关系的生态机制和大型无脊椎动物群落对不同的河流恢复活动的反应，并强调何时何地实施了有效的措施。这些证据将用于进一步完善和改进生态工具箱及其预测可持续河流恢复干预措施的能力。