摘要
以黔中喀斯特山地鱼梁河流域为代表,流域路线踏查和典型地段森林植被调查相结合,分析了黔中喀斯特山地森林乔灌层植物的区系特征,比较了乔木层与灌木层植物在种类组成、区系地理成分方面的异同。所调查森林乔灌层中共有植物74科161属341种。乔木层植物共42科72属106种,分别占总数的57%、45%、31%。灌木层植物共67科148属292种,分别占总数的90%、93%、86%。在乔、灌层同时出现的有28科47属55种,分别占总数的38%、29%、16%。只含1种的有22科、占总科数的30%;含2~10种的有45科、占总科数的61%。11~20种的有6科、占总科数的8%。单型属94个、2~5种属57个、6~9种属8个、〉10种属1个。5个植物属分布型中,温带性质属占51.92%,大于热带亚热带性质属。灌木层植物的科、属、种数和分布类型均高于乔木层,二者具有明显的趋同性和趋异性。灌木层植物与乔灌层植物在种类组成、区系地理成分等方面更加接近。
Investigating in different forest types combining main route line with typical sector in the Yuliang river basin in Guizhou provincial central karst mountainous area,flora characteristics of tree and shrub layers in different forest types was studied,flora differences and similarities between tree layer and shrub layer in species composition,geographical ingredient was analyzed.There were 74 families and 161 genus and 341 species in tree and shrub layers of these forest types in the researching area,include 42 families and 72 genera and 106 species in tree layers,ratios of the relative total values were 57%,45%,31%,and 67 families 148 genera and 292 species in shrub layer,ratios of the relative total values were 90%,93%,86%.The common flora in tree and shrub layers were 28 families and 47 genera and 55 species,ratios of the relative total values were 38%,29%,16%.There were 22 families include 1 species and ratio of the total families was 30%,and 45 families from 2 to 10 species and relative ratio was 61%,and 6 families from 11 to 20 species and relative ratio was 8%.There were 94 genera include 1 species,57 genera from 2 to 5 species,8 genera from 6 to 9 species.In 5 genus distribution types,genera with temperate characteristics were more than that with tropical and subtropical characteristics,and relative ratio were 51.92%and 48.08%.Families and genera and species in shrub layer were higher than that in tree layer,and had obvious differences and similarities between tree and shrub layers.
作者
张喜
薛建辉
李克之
代朝霞
崔迎春
Zhang Xi;Xue Jianhui;Li Keizi;Dai Zhaoxia;Chui Yingchun(Nanjing Forestry University,Nanjing,210037;Guizhou Academy of Forestry,Guiyang,550011;Guizhou University,Guiyang,550001)
出处
《中国林副特产》
2007年第6期53-57,共5页
Forest By-product and Speciality in China
基金
国家科技攻关计划项目(2001BA510B0305,2004BA510B0305)
国家林业局重点项目(2001-13)
贵州省科技攻关项目(2002-1120)
贵州省"十.五"林业攻关项目(2001-18)
关键词
黔中喀斯特山地
植物区系
乔木层
灌木层
Karst Mountainous Region in Guizhou Provincial center
Flora
Tree Layer
Shrub Layer
