Simulation of Acid Precipitation Effects on Soil Nitrogen and Productivity in Forest Ecosystems

摘要

Acid rain may affect forest productivity indirectly through modification of soil processes which alter nutrient availability on the site. In an earlier paper (Botkin and Abner 1979) we reported the results of a computer simulation showing no significant changes in forest composition and production should result from projected levels of direct acid rain damage to major tree species. In this report, our analysis is expanded to estimate the effect of acid rain induced increases or decreases in organic matter decomposition and nitrogen availability on productivity in our simulated northern hardwoods forests. (ERA citation 09:015170)