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Acid rain is one of the main pollutants to the environmemt in
the twentyth century, not only it make environment destruction
grisly but also overhang mankind health and other creature
life . Today, it is the great impact for the ecosystem on
earth. When facing to the gradual escalate consciousness of
environmental protection , how to make well of environment
upkeep and ecology cradling are the most important task for us
to do . Each of one-year-old Cinnamomum camphora and Casuarina
equisetifolia were used to examine their physiological
responses to different PH value acid precipitation in this
present study. The results obtained are summaried as follows
:Ⅰ.the amount of total sugars of per gram leaf .Ⅱ.the amount
of reducing sugars of per gram leaf.Ⅲ.the amount of
chlorophyll of per gram leaf .Ⅳ.the amount of glutathione of
per gram leaf .Ⅴ.the amount of amino acid of per gram leaf .Ⅵ.
the amount of starch of per gram root .Ⅶ.the amount of
cellulose of per gram root .Ⅷ.the leaf observed by scanning
eletronic microscope : Lower epidermis of normal and fumigated
leaves of Cinnamomum camphora and Casuarina equisetifolia were
observed by scanning eletronic microscope, leaves slightly
damaged by acid precipitation showed shrinkage in subsidiary
cells,tissues between veins of severeiy damaged leaves showed
necrosis or collapse .
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