Effects of land use in catchments on the acidity and ecology of natural surface waters
Particular land uses and management practices in catchment areas, of either historical or recent origin, can markedly affect the rate of acidification of natural and artificial surface waters. The three case studies presented examine the effects of different upland forestry regimes and management practices upon the acidity of streams and the consequent ecological changes, the effects of two different species, one deciduous and native to the area and the other coniferous and alien, on the soil quality, and the effects of tree harvesting in a catchment area on key cations and anions and the pH of the local streams. The second part includes studies of the role of vegetation - especially trees - in capturing acidic air pollution from fogs and clouds, on the processes of acidification in soils and groundwater, and upon the role of humic acids in the acidification processes in surface waters. The third section contains detailed considerations of the effects of both historical and recent forest and agricultural land management practices. The final part examines some possible remedial measures, the prospects for modelling stream chemistry and biology, as well as responses to land use changes and treatments.
Bibliographic Reference: EUR 11726 EN (1990) 225 pp., FS, ECU 12
Availability: (2) Also available from CEC, DG XII/E, Bruxelles (BE) as Air Pollution Research Report 13
Record Number: 199011524 / Last updated on: 1994-12-02
Original language: en
Available languages: en