黄海北岸陆地—滨海湿地—岛屿植物区系比较分析  

Comparative Analysis of the Land-Coastal Wetland-Island Plant System on the North Shore of the Yellow Sea

作　　者：李春梅[1] 张华[1] Li Chunmei;Zhang Hua(College of Urban and Environmental Science,Liaoning Normal University Dalian,Liaoning 116029,China)

机构地区：[1]辽宁师范大学地理科学学院,辽宁大连116029

出　　处：《绿色科技》2022年第20期14-19,共6页Journal of Green Science and Technology

基　　金：辽宁省教育厅自然科学研究项目(编号:LJ2020019,LJKZ0971)。

摘　　要：为探究黄海北岸陆地、滨海湿地、岛屿之间植物区系的相互联系,基于辽宁仙人洞国家级自然保护区(陆地)、丹东鸭绿江口湿地国家级自然保护区的核心区(滨海湿地)、丹东大鹿岛(岛屿)植物名录,采用Jaccard相似性系数,对黄海北岸3个区域的植物区系成分及彼此之间的相似性程度进行了定量研究。结果表明:①黄海北岸陆地、滨海湿地、岛屿3个区域分别有维管束植物108科401属831种、83科234属365种、76科216属318种,植物物种多样性较为丰富;②3个区域植物区系以北温带分布及其变型成分最多,泛热带分布成分次之,旧世界温带分布及其变型成分和东亚分布及其变型成分较多,呈现出植物交汇的特点;③3个区域间科、属级水平上植物区系相似性系数由高到低依次为陆地与岛屿>陆地与滨海湿地>滨海湿地与岛屿,种级水平上植物区系相似性系数由高到低依次为陆地与滨海湿地>滨海湿地与岛屿>陆地与岛屿,呈现出3个区域间植物区系科级水平上的相似性程度较高,属级和种级水平上的相似性程度较低的发展态势,说明3个区域植物区系之间既相互联系又独立发展。In order to explore the interrelationship between the plant systems on the north shore of the Yellow Sea,based on the plant list of the three areas of the Liaoning Xianrendong National Nature Reserve(land),Dandong Yalu River Estuary Wetlands National Nature Reserve(coastal wetland),Dandong Dalu Island(island),the Jaccard similarity coefficient was used to quantitatively study the plant system composition and similarity between the three areas on the north shore of the Yellow Sea.The results show that:①The three areas of land,coastal wetland and island on the north shore of the Yellow Sea have maintenance tube beam plant 831 species 401 genus 108 sections,365 species 234 genus 83 sections and 318 species 216 genus 76 sections,and the diversity of plant species is relatively rich;②The three regional plant regions have the largest distribution of northern temperate distribution and its variants,and the Pantropical distribution are second.The tropical distribution and variants of the old world and East Asian distribution and its variants are also more,showing the characteristics of plant inters ection respectively;③The similarity coefficients of three interregional plant systems at the sections and the genus levels from highest to lowest are Land and Island>Land and Coastal Wetland>Coastal Wetland and Island.The similarity coefficients of plant systems at the species level from highest to lowest are Land and Coastal Wetland>Coastal Wetland and Island>Land and Island,showing a high degree of similarity at the level of sections of plant systems between the three regions,and a low degree of similarity at the level of genus and species,which shows that the three regional plant regions are interrelated and independent development.

关 键 词：相似性系数 陆地 滨海湿地 岛屿 

分 类 号：Q948.5[生物学—植物学]