四川大学学报（自然科学版）2012，Vol.49Issue(5)：1164-1168,5.DOI:10.3969/j.issn.0490-6756.2012.05.038
附生植物垂茎异黄精的生物生态学特性
Bioecological characteristics of a epiphyte population of Heteropolygonatum pendulum
摘要
Abstract
Heteropolygonatum pendulum , only found in Hailuo Ravine in Mt. Gongga, is a endemic epiphyte species to China. Characteristics of H. pendulum and community, especially, locations of H. pendulum at trees and microhabitats were investigated at Qingshiban Ravine in Hailuo Ravine. 110 individuals of H. pendulum were found in 27 trees at an altitude of 2255 ~ 2412 m. As to H. pendulum, seed setting rate was 32. 7% , average length was 43. 8±18. 34 cm, average height of location was 11. 18 ±3. 57 m, average number of leaves were 4. 44± 3. 54, and average number of fruits were 1. 83±3. 60. H. pendulum lived mainly in Lithocarpus cleistocarpus forest and L. cleistocarpus, Betula insignis and Acer flabellatum old-growth forests. Those forests had clear distinction among different layers and were rich in species. As to trees where H. pendulum located, average DBH was 87. 67 ± 31. 05 cm, average height was 20. 93±4. 99 m. H. pendulum mainly located at L. cleistocarpus tree branches, whose average angle was 1. 45 + 13. 63 °, average diameter was 14. 29± 9. 51 cm, and average thickness of moss, whose species were rich, was 6. 05±0. 95 cm. Strict habitat demands, slim chance of seed dispersal, anthropogenic disturbances on its habitat may be the causes of the endangerment of this species.关键词
垂茎异黄精/生物生态学特性/生境特征/附生植物Key words
Heteropolygonatum pendulum / biological characteristics/ habitat characteristics/ epiphyte分类
生物科学引用本文复制引用
杨彪,缪宁,马祥光,何兵,岳碧松..附生植物垂茎异黄精的生物生态学特性[J].四川大学学报（自然科学版）,2012,49(5):1164-1168,5.基金项目
山水自然保护中心卡尼尔项目(201004011) （201004011）
四川大学青年基金项目(2009SCU11111) （2009SCU11111）
