Environmental change, catchment hydrology and the stream environment

环境变化、流域水文和河流环境

• 批准号: 100277-2011
• 负责人: Moore, RobertDaniel
• 金额: $ 2.4万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2011
• 资助国家: 加拿大
• 起止时间: 2011-01-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=475244
• 关键词: Environmental; change; catchment; hydrology; stream

Both changes in land cover and climatic conditions can have fundamental influences on the timing and magnitude of streamflow and water quality, thus influencing water resource availability and aquatic species including fish. The long-term objective of my research program is to increase our understanding of, and ability to predict, the interacting effects of climate variability and change, forest dynamics and glacier response on streamflow and aquatic habitat, particularly stream temperature. Field research and computer modelling studies will be carried out to improve our understanding of the influence of forest harvesting on streamflow, particularly during rain-on-snow events, which can generate extreme peak streamflows and landslides. It will also examine the patterns of stream temperature in a forested catchment, particularly the short and long-term influences of forest harvesting with different streamside management approaches and the influences of small lakes. The research will particularly focus on winter stream temperatures, which are important controls on the within-gravel development of species such as Coho salmon. Research will also document the effects of ongoing glacier retreat on streamflow and stream temperature in the Coast Mountains of British Columbia. The research will be valuable for fisheries managers in relation to understanding the potential effects of climate change on species like Coho salmon and cutthroat trout, which occupy small coastal streams for part or all of their life cycle. The results would also be valuable in designing forest management strategies that minimize impacts on aquatic systems.

土地覆盖和气候条件的变化都会对水流和水质的时间和大小产生根本性影响，从而影响水资源的可用性和包括鱼类在内的水生物种。我的研究计划的长期目标是提高我们对气候变率和变化、森林动态和冰川响应对水流和水生栖息地（特别是溪流温度）的相互作用影响的理解和预测能力。将进行实地研究和计算机建模研究，以提高我们对森林采伐对水流影响的了解，特别是在雨雪天气期间，这可能会产生极端的峰值水流和山体滑坡。它还将研究森林流域的河流温度模式，特别是不同河边管理方法的森林采伐的短期和长期影响以及小湖泊的影响。该研究将特别关注冬季溪流温度，这是对银鲑鱼等物种在砾石内发育的重要控制因素。研究还将记录正在进行的冰川退缩对不列颠哥伦比亚省海岸山脉的水流和水温的影响。这项研究对于渔业管理者来说非常有价值，有助于了解气候变化对银鲑鱼和切喉鳟鱼等物种的潜在影响，这些物种的部分或全部生命周期都占据沿海小溪流。研究结果对于设计最大限度地减少对水生系统影响的森林管理战略也很有价值。