Water quality of Scottish rivers: spatial and temporal trends
Water quality of Scottish rivers: spatial and temporal trends
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DOI：
10.1016/s0048-9697(00)00674-4
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发表时间：
2001-01-29
影响因子：
9.8
通讯作者：
Morris, R
中科院分区：
文献类型：
--
作者：
Ferrier, RC;Edwards, AC;Morris, R
协调监测计划（HMS）于1974年启动，是描述苏格兰，英格兰和威尔士主要大陆河流水质的最佳时空数据来源。本文介绍了苏格兰的HMS数据的第一次详细分析，并确定从1974年至1995年的水质随时间的变化。从流域土地覆盖特征的伴随分析，水质指数已与潜在的“驱动程序”的变化，影响点源和扩散源。河流之间的硝酸盐浓度高度相关的耕地数量，草地覆盖，正磷酸盐-P和悬浮固体浓度之间存在的关系。同样，城市集水区与铵态氮，正磷酸盐-P和悬浮固体高度相关。空间和时间趋势的水质苏格兰的河流进行了讨论。(C)2001 Elsevier Science B. V.保留所有权利。
The Harmonised Monitoring Scheme (HMS) was initiated in 1974 and represents the best-organised source of temporal and spatial data describing water quality for the major mainland rivers of Scotland, England and Wales. This paper presents the first detailed analysis of HMS data for Scotland, and identifies temporal changes in water quality from 1974 to 1995. From a concomitant analysis of catchment land cover characteristics, water quality indices have been linked with potential 'drivers' of change, influencing both point and diffuse sources. Nitrate concentrations between rivers are highly correlated with the amount of arable land, and relationships exist between grassland cover, orthphosphate-P and suspended solids concentrations. Similarly, urban catchments are highly correlated with ammonium-N, orthophosphate-P and suspended solids. Spatial and temporal trends in water quality for the rivers of Scotland are discussed. (C) 2001 Elsevier Science B.V. All rights reserved.