<正>本文引用大量文献资料对酸雨造成树木危害的症状、酸雨对树木个体及森林生态系统危害的机理进行了全面的综述,并对国内外研究现状、存在问题、发展趋势进行了分析,阐明了有待进一步探索的领域。

This paper briefly discusses the injured symptom of trees by acid rain and detailed reviews of the injured mechanism of acid rain to trees and ecosystems. The main reasons of acid raind amage to trees are as follows: Firstly ,H + from acid rain stimulates cell membrane which changes cell penetrability and results in the destruction of cell atructures. Secondly, it is the destruction of cell strutures that changes the existing state of enzynes, reduces the activate of enzymes, loads to the imbalance of metabolisn. Finally, cell disintegrates and tree dies. (The effects of acid rain on forest ecosystems include: Acid rain leach forest canopy and soil which lose nutrient elements in forest ecosystems; Soil acidify caused by acid rain reduces usable mutrients in soil which make AI and other metal toxic to tree, affects the activate of soil mierobiota, restrains the decomposition of litter and soil. )In the meantime, it is the tree growth decline caused by acid rain that has forest ecosystems invaded easily by dueases and insects. The author proposed that it is the essential countermeasures for preventing the effects of acid rain, on forest to reduce and eliminate pollution source, to develop integrated research and to take silvicultural mearsures etc.