Developing Indicators for Regional Water Quality Assessment: An Example from British Columbia Community Watersheds

Sandra Brown; L.M. Lavkulich; Hanspeter Schreier

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Developing Indicators for Regional Water Quality Assessment: An Example from British Columbia Community Watersheds

机译：区域水质评估的发展指标：以不列颠哥伦比亚省社区流域为例

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An increased understanding of regional surface water quality and the key factors which differentiate regional from local differences is necessary for monitoring impacts such as mountain pine beetle infestation and related land management practices. This study develops a framework to identify water quality indicators which differentiate parameters influenced by rock type, by relatively short term anthropogenic activities, and those resulting from longer term climatic variability. Rock type was an overriding factor related to stream water chemistry in this British Columbia case study, with differences between watersheds differentiated by Ca, EC, Al and Fe. Grouping watersheds by their dominant rock type permitted the investigation of water quality with other watershed characteristics. The % forest cover, % pine cover, and dominant runoff processes demonstrated significant relationships with soluble cations, metals, turbidity and total organic carbon. Turbidity levels showed low variability, and relationships with mountain pine beetle were not strong; suggesting the need for more detailed data sets, selective monitoring of storm events, and longer term monitoring to improve predictive capacity.

机译：对于监测诸如山松甲虫侵扰和相关土地管理实践之类的影响，有必要加深对区域地表水水质和区分区域与地方差异的关键因素的了解。这项研究建立了一个框架，以识别水质指标，这些指标可以区分受岩石类型，相对短期的人为活动以及较长期的气候变化影响的参数。在这个不列颠哥伦比亚省的案例研究中，岩石类型是与溪流水化学有关的最重要因素，流域之间的差异由Ca，EC，Al和Fe区分。按照主要岩石类型对流域进行分组可以研究具有其他流域特征的水质。森林覆盖率，松木覆盖率和主要径流过程证明与可溶性阳离子，金属，浊度和总有机碳有显着关系。浊度水平显示出较低的变异性，与山松甲虫的关系不牢固；建议需要更详细的数据集，对风暴事件的选择性监视以及长期监视以提高预测能力。

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《Canadian Water Resources Journal》 |2011年第3期|p.271-284|共14页
作者
Sandra Brown; L.M. Lavkulich; Hanspeter Schreier;
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Faculty of Land and Food Systems, University of British Columbia, Vancouver, BC V6T 1Z4;

Faculty of Land and Food Systems, University of British Columbia, Vancouver, BC V6T 1Z4;

Faculty of Land and Food Systems, University of British Columbia, Vancouver, BC V6T 1Z4;

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机译：1996 - 1998年，在华盛顿和不列颠哥伦比亚省pugetsound盆地的区域，农业和城市环境中的地下水质量

Developing Indicators for Regional Water Quality Assessment: An Example from British Columbia Community Watersheds

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