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Title: River Glen : river channel assessment : main report
Author: National Rivers Authority Anglian Region
Document Type: Monograph
The drought of 1976 created an awareness within the water industry and among the general public of the potential consequences of abstractions from groundwater and surface waters for the fauna and flora or rivers and streams. It also created an appreciation of the potential conflicts between water resources developments and environmental interests. The current drought has led to further concern for river degradation caused by extreme low flows. However, many influences can cause a river to be degraded. The principle environmental factors causing degradation are water quality, streamflow and channel engineering and maintenance work. Many degraded rivers reflect the history of agricultural intensification, industrialization and urban growth over the past 250 years. Streamflow changes, for example, have been caused by a range of human activities including land drainage, land use change, urban growth, water resource developments and flood control. One river for which concern has been growing since the mid 1970's is the River Glen, Lincolnshire. The river drains low lying hills formed of permeable Lincolnshire Limestone and summer river levels are maintained by spring flows from the limestone aquifer. Reports suggest that by 1976, abstractions had already lowered groundwater levels and springflows below their natural state. Further they suggest that the declining flows in the River Glen had had deleterious effects on the biology and fisheries of the river.
Publisher: National Rivers Authority
Publication Date: 1992
Publication Place: Peterborough
Subject Keywords: Water qualityGroundwater assessmentRiversEnvironmental managementWater abstractionRivers
Geographic Keywords: Glen (Lincolnshire)LincolnshireWelland catchment
Extent: 70; + appendices
Total file downloads: 266

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