Water quality of Scottish rivers: spatial and temporal trends

被引：83
作者：
Ferrier, RC
Edwards, AC
Hirst, D
Littlewood, IG
Watts, CD
Morris, R
机构：
[1] Macaulay Land Use Res Inst, Biomath & Stat Scotland, Aberdeen AB15 8QH, Scotland
[2] Inst Hydrol, Wallingford OX10 8BB, Oxon, England
[3] Scottish Environm Protect Agcy, Head Off, Stirling RK9 4TR, Scotland
来源：
SCIENCE OF THE TOTAL ENVIRONMENT | 2001年 / 265卷 / 1-3期
关键词：
Scotland; harmonised monitoring scheme; water quality; trends; land cover;
D O I：
10.1016/S0048-9697(00)00674-4
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
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.
引用
收藏
页码：327 / 342
页数：16
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