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１９９４年底，ＩＵＣＮ（世界保护联盟）正式公布了“红色名录类型”，对物种受威胁的情况作了比较客观的分类，提出了许多具体的数量标准以便进行分析判断。本文概略介绍该分类系统及其划分标准的实际应用，供开展物种受威胁的评估工作参考
At the end of 1994, IUCN (World Conservation Union) formally announced the “Red List Type”, which made an objective classification of threatened species and put forward many specific quantitative criteria for analysis and judgment. This article gives an overview of the practical application of this taxonomy and its classification criteria for reference to the assessment of threatened species