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云南石林喀斯特地区半湿润常绿阔叶林附生植物的初步研究
A preliminary study of epiphytes in semi-humid evergreen broad-leaved forest in Stone-forest Karst Region, Yunnan Province
【摘要】 对云南石林喀斯特山地原生植被——半湿润常绿阔叶林中附生植物的组成、生物量以及附生植物持水量等进行研究,结果表明该区森林林木附生植物种类相对较少,只有8科9种附生维管束植物和5种苔藓植物,而林内岩石表面则有石附生维管束植物16科17种,苔藓植物3种,两种不同生境附生植物的相似性系数为0.5。相同取样面积(400cm2)条件下,岩石表面附生植物平均生物量(11.7g)比林木表面(4.9g)的高。附生植物一次持水量为自身干重的5.5~9.7倍。
【Abstract】 In this paper,we studied the composition and biomass of epiphytes on trees and stone surface in semi-humid evergreen broad-leaved forest at Karst mountain area,Shilin,Yunnan Province. Results showed there were more amounts of epiphytic plant species and biomass on stone surface than those on trees in the forest. 17 epiphytic species were found on the stone surface,while only 9 species in the trees. The epiphytes biomass in the same sampling area of 400 cm2 on the former and the latter was 11.7 g and 4.9 g,respectively. The water holding of epiphytes in the forest was high,reaching 5.5 to 9.7 times of its dry material.
【Key words】 Karst mountain area; epiphytes; semi-humid evergreen broad-leaved forest; Yunnan;
- 【文献出处】 广西植物 ,Guihaia , 编辑部邮箱 ,2006年01期
- 【分类号】S718.521.2
- 【被引频次】18
- 【下载频次】412