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《Journal of Wuhan Botanical Research》 2008-01
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Spatial pattern of Adiantum reniforme var.sinense,Endemic to the Three-Gorge Reservoir Region

ZHOU Sai-Xia1,2,3,JIANG Ming-Xi1,HUANG Han-Dong1(1.Wuhan Botanical Garden,The Chinese Academy of Sciences,Wuhan 430074,China;2.Graduate University of the Chinese Academy of Sciences,Beijing 100039,China;3.Lushan Botanical Garden,The Chinese Academy of Science,Jiangxi Province,Lushan 332900,China)  
The spatial distribution pattern of Adiantum reniforme var.sinense was analyzed by Ripley's K-function.Population patterns and spatial association of A.reniforme var.sinense depend on spatial scales and individual plant sizes,and so do their intraspecific relationships.On the scales less than 4.5 m,the population is usually characterized by clumped distribution,and their spatial association is considerably obviously positive.By contrast,if the scales enlarge beyond some points(5 m),the plants will disperse randomly,and their spatial association will loosen greatly.Mature individuals are more likely to follow clumped distribution than those small ones.The spatial association between plants will turn weak if their size differences are large.The abundant seedlings in the plot implied regeneration of A.reniforme var.sinense was moderate,but the seedlings distributed unevenly.Finally,according to the habitat of A.reniforme var.sinense in nature,we proposed a few strategies for its preservation which included reducing clear-cutting,increasing properly shrub coverage and decreasing herb coverage.
【Fund】: 国家自然科学基金资助项目(30570331 30670368);; 国务院三峡工程建设委员会资助项目(SX2002-007)
【CateGory Index】: Q948
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Chinese Journal Full-text Database 3 Hits
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2 CHEN Wen-Nian1,2 WU Yan2 WU Ning2 LUO Peng2(1.Department of Life Science,Neijiang Normal University,Neijiang 641112;2.Chengdu Institute of Biology,Chinese Academy of Science,Chengdu 610041);Variation in Phenology and Population Distribution Pattern of Three Alpine Species Along the Snowmelt Gradient[J];植物研究;2011-02
3 ZHANG Zu-rong1,2,RAN Lie1,3(1.Department of Life Science,Chongqing University of Arts and Sciences,Chongqing 402168;2.Key Laboratory of Eco-environments in Three Gorges Reservoir Region(Ministry of Education),College of Life Sciences,Southwest University,Chongqing 400715;3.Rare Plants Garden in Three Gorges,Chongqing 406160);Investigation and Analysis on the Endangered Reason for the Special Medical and Ornamental Plant Named Adiantum reniforme var. sinense in Three Gorges Reservoir[J];北方园艺;2010-16
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1 DING Xian-hua et al (School of Lofe Science,Shanxi Normal University,Linfen,Shanxi 041000);Analysis on Species Composition of Plant Communities and Life Form Spectrum in Huoshan Mountain Qiliyu[J];安徽农业科学;2010-22
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