Abstract
Acid precipitates in snow may be a stress factor that affects the growth of wintering plants. The objective of this study was to determine the influence of acid-snow stress on leaves of wintering plants by in vitro experiments. Three different experiments, equilibrium freezing, prolonged freezing and repeated freeze-thawing, were carried out in order to simulate freeze-thawing of acid snow during winter. The results showed that acidification in the process of freeze-thawing caused enhancement of freezing injury of wintering plants.
