Acid rain can damage either plant leaves directly or plant roots indirectly resulting from soil acidification and release of base ions. The direct and indirect stress effect of acid rain results in the unbalance between the production and elimination of active oxygen in plant stems, which causes the lipid peroxidation of plant cell membrane, and damages the plants. The effects of simulated acid rain and its acidified soil on the lipid peroxidation of wheat seedlings was quantified with a pot experiment. A y...