General methods and materials
An experiment was initiated to investigate the long-term effects of near ambient concentrations of O(3), SO(2) and simulated acid rain and fog, alone and combined, on mineral cycling, physiology, biochemistry and anatomy of Norway spruce, silver fir and European beech seedlings in model ecosystems. Open-top chambers above soil lysimeters were protected with shelters against the intrusion of ambient dust and rain. The soil, a replaced acid brown earth with a base saturation of 20-30% was from the Black Forest region of Germany. The technical design aspects of the study are presented, including chamber construction and ventilation, SO(2) and O(3) application and monitoring, simulated precipitation forms and dispensing features, and the environmental parameters monitored. A short description of the plants used and the soil status is also given. Chamber climatic and edaphic conditions allowed the normal growth of the seedlings during the study period. The pollutant levels within the appropriate chambers were comparable to ambient concentrations found at southwest German forest sites and varied with weather conditions.
Bibliographic Reference: Article: Environmental Pollution, Vol. 68 (1990) pp. 205-229
Record Number: 199110310 / Last updated on: 1994-12-02
Original language: en
Available languages: en