Geomorphologic and Ecological Monitoring Data in Urban Watersheds at Ganateskiagon Creek (Durham), Wilket Creek (York), Morningside Creek (Scarborough) in Ontario

Urban stream syndrome describes the increased concentrations of nutrients and contaminants, modified channel morphology and stability, flashy hydrographs, and decreases in biodiversity in urban, lotic streams, because of increases in impermeable surfaces, intensive development, and poor storm water management. Although the hydrologic changes that result from urbanization have been extensively described, the effects of this hydrologic modification on other river processes is poorly understood. The purpose of this project is to understand the consequences of watershed urbanization on geomorphological and ecological processes of rivers through direct comparison of similar rivers with different watershed land-use scenarios. In particular, this project focuses on bedload sediment transport, water quality, and benthic macroinvertebrates. The aim is to use this research to help inform policies on restoration and conservation of urban rivers and aquatic ecosystems.Funding for this data collection was provided by an NSERC Strategic Grant (STPGP 463321 14, Assessing and restoringthe resilience of urban stream networks). This data collected will also be used to support the project titled 'Linking Stream Network Process Models to Robust Data Management Systems for the Purpose of Land-Use Decision Support', which is funded under the Global Water Futures Program funded by Canada First Research Excellence Fund.城市溪流综合征（Urban stream syndrome）指城市流动水体溪流中出现的营养盐与污染物浓度升高、河道形态与稳定性改变、水文过程呈暴涨暴落特征，以及生物多样性下降等现象，其成因包括不透水面占比提升、高强度开发以及雨水管理不善。尽管城市化引发的水文变化已被广泛研究阐释，但这类水文改造对其他河流过程的影响却鲜有深入探明。本项目旨在通过对比不同流域土地利用情景下的同类河流，解析流域城市化对河流地貌与生态过程的影响。本项目重点关注推移质泥沙输运、水质以及底栖大型无脊椎动物。研究目标是依托该研究成果为城市河流与水生生态系统的修复与保护政策制定提供科学参考。本数据集的采集工作由加拿大自然科学与工程研究理事会（Natural Sciences and Engineering Research Council of Canada, NSERC）战略项目基金（STPGP 463321-14，《评估并修复城市溪流网络的韧性》）资助。本次采集的数据还将用于支持题为《连接溪流网络过程模型与稳健数据管理系统以支撑土地利用决策》的项目，该项目隶属于加拿大第一研究卓越基金（Canada First Research Excellence Fund）资助的全球水未来（Global Water Futures）计划。