期刊
SCIENCE OF THE TOTAL ENVIRONMENT
卷 282, 期 -, 页码 65-80出版社
ELSEVIER
DOI: 10.1016/S0048-9697(01)00954-8
关键词
Chalk aquifer; surface-groundwater interactions; Berkshire-Marlborough Downs; Thames; Kennet; Pang; Lmbourn
The water quality and biological functioning of major UK rivers draining permeable basins cannot be fully understood without knowledge of the spatial and temporal controls on the aquifer-river system. In this paper, hydrogeological features of Chalk streams feeding the Thames, the focus of this special issue, are described. Large-scale features, such as line sinks along the Thames and major tributaries such as the Kennel, tend to determine the regional groundwater flow patterns in the Chalk aquifer, whereas the complex characteristics of the Chalk dominate the local spatial and temporal patterns of groundwater discharge to the tributaries draining the dip slopes. These different controls are described and illustrated by particular reference to the Lambourn (a sub-catchment of the Kennet) and Pang catchments. Various issues requiring further investigation are also highlighted. (C) 2002 Elsevier Science B.V. All rights reserved.
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