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Title: Nutrient export modelling on the River Bure, Norfolk : progress report 2 : June-July 1995
Author: P.J. Johnes
Author: S.D. Caton
Document Type: Monograph
Annotation: EA additional title info: operational investigation 581 : nutrient export modelling on the river bure, norfolk - progress report 2
The analysis of water samples, collected weekly by the NRA, to determine TON and ammonia has been completed for the period between June 1 and July 31. The analysis for soluble reactive phosphorous has been performed at the NRA Haddiscoe laboratory. The water samples have been collected on a monthly basis from the NRA Haddiscoe laboratory on the first Wednesday in every month. These samples will be filtered and digested to determine the total N and total P concentrations during September. The historical land use and population data for all parishes in the River Bure catchment have been extracted and entered into an Excel spreadsheet. A summary of the data is displayed in tables 1 and 2 overleaf. The historical poulation data for the year 1991, from which data from 1988 will be interpolated, is not yet available from the British Library, London, but the relevant data will be inserted once it becomes available. Historical land use and population data is currently being collated for the River Wensum catchment above Norwich. At present the years 1931, 1951, and 1971 have been completed. The finished data will also be placed in a spreadsheet format on Excel, and summary tables compiled. Two attempts have been made to obtain the information on present day land use and management for the River Bure catchment using the farm questionnaire survey. On both occasions a negative response from the land owners was recorded. This result can be attributed to a clash with the Royal Norfolk Agricultural Show on the first occasion, and with harvesting activities in the second. In both cases farmers were either not available or too busy to provide a satisfactory response. Following advice from one of the land owners a third attempt will be made in September.
Publisher: National Rivers Authority
Publication Date: 1995
Publication Place: Peterborough
Subject Keywords: Water samplingAmmoniaTotal oxidised nitrogenWater quality measurementsPhosphorusLand useRivers
Geographic Keywords: NorfolkBure (Norfolk)WensumBroadland Rivers catchment
Extent: 34
Total file downloads: 211

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