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报道和分析了峨嵋山冷杉森林的衰退状况。对冷杉种群的受害程度、分布规律、症状特点及其与海拔、特定生境、立木径级和林型的关系进行了研究分析。指出峨嵋山冷杉森林衰退是全球森林衰退的组成部份,而不是个别的或偶然的现象;肯定了当地冷杉林衰退具有某些个性特征。由此认为,导致当地冷杉衰退的主要原因可能是某种或某些作用范围广、持续时间长、发生频率高、对全球森林系统构成威胁的因素所致。
Reported and analyzed the decline of fir forest in Emei Mountain. The damage degree, distribution law, symptom characteristics and its relationship with the altitude, specific habitat, stand diameter and forest type of Firs population were studied and analyzed. It is pointed out that the recession of fir forest in Emei Shan is a component of the global forest recession rather than individual or accidental phenomenon. It affirms that the decline of fir forest in the local area has certain personality traits. Therefore, the main reason for the decline of local fir may be that some or some of the wide range of action, duration, frequency of occurrence, the threat to the global forest system.