厦门大学学报（自然科学版）2018，Vol.57Issue(1)：79-84,6.DOI:10.6043/j.issn.0438-0479.201704054
山东无棣贝壳堤岛保护区维管束植物的生态位特征
Ecological Niche Characteristics of Vascular Plant Species in the Natural Chenier Island Reserve of Wudi,Shandong Province
摘要
Abstract
Three sections of Wangzi Island were set up in the Natural Chenier Island Reserve of Wudi,and the ecological niche of vascular plants was studied using walking investigation and systematic sampling methods.Field surveys showed that there were 74 vascular species,belonging to 63 genera and 30 families in the Natural Chenier Island Reserve of Wudi (Wangzi Island and Dakouhe Island),but native species such as Apocynum venetum and Glycine soja were not found.At the level of vegetation classification,the main plant formations were shrubs of Ziziphus jujube var.spinosa,shrubs of Tamarix chinensis,meadows of Phragmites australis,meadows of Artemisia mongolica and meadows of Cynanchum chinense.The vegetation diversity indexes of Shannon-Wie-ner,Simpson,Margalef and McIntosh's were 2.70,0.91,3.42 and 0.49,respectively.The Berger-Parker and JSW evenness indexes were 0.15 and 0.79,respectively.Among all plant species with important values greater than 1.0,C.chinense had the biggest niche breath with 0.35 for Levins niche breath and 1.39 for Hurlbert niche breath,showing the strongest adaptation ability to the habitat. The next were P.australis,Messerschmidia sibirica,and Z.jujuba var.spinosa.The highest niche overlapping value was 0.469,oc-curring between P.australis and Asparagus cochinchinensis.The followed one was that between Cuscuta chinensis and Calystegia soldanella.The niches of C.chinense overlapped with most of other species,leading to significant competitions between them.For most of herbaceous plants,their niche overlap values were small,so they usually existed with pure associations.Accordingly,atten-tions should be paid on the protection of Z.jujuba var.spinosa and T.chinensis,and on the management of C.chinense and C. chinensis in the Natural Chenier Island Reserve of Wudi.关键词
贝壳堤岛/植物多样性/生态位/保护Key words
chenier island/plant diversity/ecological niche/protection分类
农业科技引用本文复制引用
肖兰,杨盛昌,侯蕊,刘长安,卢伟志,陈鹏飞..山东无棣贝壳堤岛保护区维管束植物的生态位特征[J].厦门大学学报（自然科学版）,2018,57(1):79-84,6.基金项目
国家海洋公益性行业科研专项(201305021) （201305021）
