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Below-cloud raindrops acidification simulated with a simple model incorporating gas–liquid equilibriums, gas-phase mass transfer, and catalyzed SO 2 oxidation in aqueous phase with uptake of gases and scavenging of particles. Ionic contents of various species in raindrops of different size and pH are computed using one-dimensional time-variant model. The model results are based on SO 2...
We measured the effects of acid rain and elevated ozone on net photosynthesis (A), stomatal conductance (g l ), and internal CO 2 concentration (C i ) in 1-year-old and current-year foliage of field-grown trees of a single clone of ponderosa pine (Pinus ponderosa Dougl. ex Laws.) under varying, controlled temperature and light combinations. Branches of trees were exposed to...
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