Abstract
This paper describes how the attributes of a method for determining the physical quality of rivers are well-placed for use in environmental assessment and catchment planning in the U.K. The system, known as River Habitat Survey (RHS), uses a standard field survey method with quality controls, a computer database for rapid analysis and includes outputs which quantify habitat quality and channel modification. Further refinement of the system is needed because there are limitations associated with the detail of data collected, with assumptions made about species' habitat requirements and the impact of channel modification. By taking full account of catchment characteristics, historical influences and geomorphological processes, the system can, together with other information, help in the conservation and rehabilitation of rivers.
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