The characteristics of vegetation in Yintiaoling Nature Reserve of Chongqing City were ana-lyzed by line transect and sample plot method.The results showed that with the characteristics of vertical zonality,the vegetation included 10 vegetation types,28 formation groups and 56 formations, of which deciduous broadleaved shrub,bamboo forest and meadow were distributed most widely,and then decidu-ous broadleaved forest, temperate coniferous forest, cold temperate coniferous forest, evergreen broad-leaved forest,temperate coniferous and broadleaved mixed forest,evergreen and deciduous broad-leaved mixed forest,and warm coniferous forest were distributed widely.The vegetation types were abundant in the area of 1600~2 400 m,consisting of 39 formations.The distribution area of temperate coniferous and broadleaved mixed forest was widest,accounting for 19.0%of the total area.%采用样线和样地相结合的调查方法,对阴条岭国家级自然保护区的植被特征进行分析.结果表明,阴条岭国家级自然保护区植被划分为10个植被型、28个群系组和56个群系.植被具有明显的垂直地带性,分布海拔范围最广的植被型是落叶阔叶灌丛、竹林和草甸,其后依次是落叶阔叶林、温性针叶林、寒温性针叶林、常绿阔叶林、温性针阔叶混交林、常绿落叶阔叶混交林和暖性针叶林.海拔1600~2400 m区域植被类型丰富,分布有39个群系.保护区温性针阔叶混交林分布面积最广,占保护区植被总面积的19.0%.
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