Abstract
The interaction between high concentrations of polluting gases (SO2 and NOx) and damaged forest ecosystems was observed by studying throughfall precipitation in the Erzegebirge Mountains, Northern Bohemia. Qualitative and quantitative data on throughfall for the period November 1989–October 1990 are presented. Weighted averages of SO 2−4 and NO −3 concentrations in the throughfall were 23.05 mg L−1 and 13.61 mg L−1 in a beech and 34.41 mg L−1 and 11.03 mg L−1 in a spruce forest respectively. Three variables (the molar ratios of K/Na, Ntot/S and N-NO3/N-NE4) were used to compare the spruce throughfall quality to that observed in areas with similar however, less damaged spruce stands. Both K/Na and N-NO3/N-NH4 ratios clearly decreased with increasing tree damage, the Ntot/S ratio increased. The results suggest that the throughfall in damaged ecosystems of the Erzegebirge region becomes more like a wet precipitation as the tree canopies get sparser and the trees reduce canopy leaching.
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Sincere appreciation to T. Hill and Mr. Norman from University of East London for useful comments during the typing of the manuscript.
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Růžička, Š. Throughfall quality and quantity in polluted and damaged ecosystems in Northern Bohemia. Water Air Soil Pollut 83, 205–218 (1995). https://doi.org/10.1007/BF00477353
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DOI: https://doi.org/10.1007/BF00477353