浙江淳安千岛湖库区生物防火林带的主要类型有木荷防火林带(类型Ⅰ)、木荷-苦槠防火林带(类型Ⅱ)、桂花-峨嵋含笑防火林带(类型Ⅲ)和桂花防火林带(类型Ⅳ)4种类型；类型Ⅱ和类型Ⅲ的物种多样性明显高于类型Ⅰ和类型Ⅳ；与地带性常绿阔叶林树种组成相似度比较，以类型Ⅱ最高，类型Ⅰ次之；千岛湖森林的阔叶化改造对于提高林地防火效能具有积极的意义。因此，建议千岛湖库区森林生物防火林带建设应选择以类型Ⅱ的物种多样性较丰富、防火效能好、与地带性常绿阔叶林自然植被相似程度较高的生物防火林带，重视林下连蕊茶、隔药柃、杨桐、乌饭树等常绿阔叶小乔木的保育，实现防火林带建设与阔叶化林相改造相协调发展。

Investigation indicates that the main four types of biological fireresistant forest belt in Thousandisles Lake district are Schima superba fireresistant forest belt(typeⅠ), S.superbaCastanopsis sclerophylla fireresistant forest belt (typeⅡ), Osmanthus fragransMichelia wilsoni fireresistant forest belt (type Ⅲ) and O.fragrans fireresistant forest belt (type Ⅳ). Of the four types of fireresistant forest belt, typeⅡand type Ⅲ are higher in species diversity than typeⅠand typeⅣ. As to the extent of similarity with the native evergreen broadleave forest, typeⅡranking first and typeⅠtakes the second place. The transformation of forest of Thousandisles Lake broadleaf forest would improve the fireproofing effectiveness of fireresistant forest belt, thus it was suggested that the construction biological fireresistant forest belt in Thousandisles Lake reservoir district should focus on typeⅡ belt, which had high species diversity, high fire performance ability and high similarity with native evergreen broadleaved forest. Further, the conservation of the small arbor trees of evergreen broadleaved of undergrowth such as Camellia fraternal, Eurya muricata, Cleyera japonica, Vaccinium bracteatum should be emphasized, by which the fireresistant forest belt construction should be achieved in coordination of development.