Dry deposition of sulfur: a 23-year record for the Hubbard Brook Forest ecosystem
Open Access
- 1 September 1990
- journal article
- research article
- Published by Stockholm University Press in Tellus B: Chemical and Physical Meteorology
- Vol. 42 (4) , 319-329
- https://doi.org/10.1034/j.1600-0889.1990.t01-3-00002.x
Abstract
Dry deposition of S was estimated for watershed-ecosystems of the Hubbard Brook Experimental Forest from 1964–65 through 1986–87. Two approaches, a regression analysis of bulk precipitation inputs and stream outputs and a mass-balance method, gave similar average values for Watershed 6 (430 and 410 eq SO4=/ha-yr, respectively, for this 23-year period). Dry deposition contributed about 37% of total S deposition, varying from 12% in 1964–65 to 61% in 1983–84. Long-term data from “replicated” watershed-ecosystems showed that temporal variability in estimates of dry deposition was considerably greater than spatial (between watersheds) variability. DOI: 10.1034/j.1600-0889.1990.t01-3-00002.xKeywords
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