The influence of acid mist upon transpiration , shoot water potential and pressure & mdash ; volume curves of red spruce seedlings
نویسندگان
چکیده
Widespread forest decline has been documented in Europe and NE-U.S.A. (Johnson, 1987; Woodman, 1987). This decline increases with increasing altitude (McLaughlin, 1985). One hypothesis to explain the decline and its altitude dependence is that excessive proton input has a deleterious effect upon tree growth. Acid input to the foliage and soil via wet and dry deposition may be a major factor in causing decline directly or indirectly by predisposing the tree to additional biotic and/or abiotic stress factors.
منابع مشابه
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