Environmental change, catchment hydrology and the stream environment

土地覆盖和气候条件的变化都可能对水流和水质的时间和大小产生根本影响，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、森林动态和冰川对河流和水生栖息地，特别是河流温度的相互作用的理解和预测能力。将进行实地研究和计算机模拟研究，以提高我们对森林采伐对水流的影响的认识，特别是在雨雪事件期间，这可能产生极端的峰值水流和滑坡。它还将审查森林集水区的河流温度模式，特别是采用不同的河边管理办法采伐森林的短期和长期影响以及小湖泊的影响。这项研究将特别关注冬季溪流的温度，这是控制银鲑等物种在砾石内发育的重要因素。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溪流流量和溪流温度的影响。这项研究对渔业管理者来说很有价值，可以帮助他们了解气候变化对银鲑和切喉鳟鱼等物种的潜在影响，这些物种在它们的部分或全部生命周期中占据着沿海的小溪流。研究结果在设计森林管理战略以尽量减少对水生系统的影响方面也很有价值。

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.