Throughfall chemistry beneath Sitka spruce of four ages in Beddgelert Forest, North Wales, UK
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Rainfall and throughfall chemistry beneath Sitka spruce of four ages were determined for a one year period. Throughfall beneath the older stands was consistently much more acid than rainfall. The H-ion flux was more than twice that in rainfall. Throughfall beneath the younger stands was only slightly more acid than rainfall, but the throughfall H-ion flux was considerbly less than in rainfall because the canopy intercepted a large proportion of rainfall. Concentrations and fluxes of other major cations and anions were greater in throughfall than precipitation for all crop ages.
Key wordsacidification rainfall chemistry rainfall interception sitka spruce throughfall chemistry
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