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机构地区:[1]山西大学生命科学与技术学院,山西太原030006
出 处:《山西大学学报(自然科学版)》2007年第4期544-549,共6页Journal of Shanxi University(Natural Science Edition)
基 金:山西省自然科学基金(20021079)
摘 要:从藤本植物的种类组成、生活型、攀援方式、生态功能以及经济价值方面度分析了山西历山国家自然保护区藤本植物的多样性.结果表明:(1)该区共有藤本植物43科、89属、140种(包括变种);(2)草质藤本和多年生藤本占绝对优势,分别占藤本植物种类的72.9%(木质藤本占27.1%)和68.6%(一年生占31.4%);(3)主要由含少量藤本植物的科、属组成,含5种以下的科占83.7%,属占96.7%,但藤本种类的数量主要集中在少数几个大科中,59.3%的藤本属于豆科、葡萄科和葫芦科等7个大科;(4)攀援类方式分为缠绕类、攀援类、卷须类、吸固类、铺展类和寄生类6大类;(5)许多种类的藤本植物具有水土保持、改良土壤和美化环境等生态功能并具有重要的经济价值,主要有工业原料、药用、食用、饲用和观赏资源.Lishan Mountain National Nature Reserve lies in the east of Zhongtiao Mountains ,Shanxi, North China,between 35°16'-35°27'N,111°51'-112°36'E and it covers 24 800 hm^2. Vines are very commom in the area. Based on the analysis of flora, breeding system, climbling mechanics, ecological functions and economic values,the diversity of vines was studied. The results showed that: (1)There were 140 climbling species,belonging to 89 genera and 43 families in the area. (2)Herbaceous vines accounted for 72.9 % and ligneous vines 27.1% ;perennial vines 68.6 % and annual 31.4 %. (3)Vine flora was composed mainly of small families and genera. The number of families having 1-5 vine species was 36 (83. 7 %) and the number of genera having 1-5 vine species was 87(96.7 %), however,vine species were included in many families. The majority belongs to relatively few families and 59.3 % of the 140 vine species belong to 7 families. (4)Vine climbling mechanics were divided into 6 tybes, the spiral, the climbing, the tendril, the adhering ,the creeper and the parasite (1.4 %). (5)Some species of vines can hold water and earth,improve soil and embellishment and are the important plant resources.
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