海岸凤尾蕨(Pteris minor)的地理分布格局及保护价值分析  

Analysis of the Geographical Distribution Pattern and Conservation Value of Pteris minor

作　　者：郭芮 贺丹 黄航 于靖[1] 徐诗涛[1] 严岳鸿 杨东梅[1] GUO Rui;HE Dan;HUANG Hang;YU Jing;XU Shitao;YAN Yuehong;YANG Dongmei(College of Horticulture,Hainan University,Haikou,Hainan 570228,China;Shenzhen Orchid Plant Protection Research Center,Shenzhen,Guangdong 518000,China)

机构地区：[1]海南大学园艺学院,海南海口570228 [2]深圳兰科植物保护研究中心,广东省深圳市518000

出　　处：《热带作物学报》2023年第1期208-214,共7页Chinese Journal of Tropical Crops

基　　金：海南省基础与应用基础研究计划(自然科学领域)高层次人才项目(No.2019RC167);海南省普通高等学校研究生创新科研课题(No.Hys2020-239)。

摘　　要：海岸凤尾蕨是海岸带少有的蕨类植物之一。由于其植株形态和傅氏凤尾蕨相似,因长期被误定为傅氏凤尾蕨而缺乏关注。其实,二者在生境、植株形态、孢子形态及染色体倍性上有明显区别。所以,海岸凤尾蕨由傅氏凤尾蕨的变种提升为种。为厘清海岸凤尾蕨的分布区域和生存现状,通过整理前人的采集记录和研究结果,结合野外考察,使用Arc-GIS 10.7软件构建海岸凤尾蕨不同范围的地理分布信息图,并依据IUCN 3.1的标准,对其保护价值进行评估。研究结果显示:(1)从世界地理分布格局来看,海岸凤尾蕨主要分布在亚洲;亚洲主要分布在中国、日本和菲律宾;中国主要分布在浙江、福建、澳门、香港和台湾;日本主要分布在琉球群岛;菲律宾主要分布在北部岛屿。(2)根据IUCN 3.1标准,海岸凤尾蕨的保护等级暂时定为近危(NT)。从目前的数据来看,海岸凤尾蕨的分布范围狭窄,其生境容易受到人类活动的干扰,却长期缺乏保护。因此,最后提出相应保护建议。Pteris minor is one of the rare pteridophytes in the coastal zone.Because its morphology is similar to that of P.fauriei,it has been wrongly identified as P.fauriei for a long time and lacks attention.In fact,there are obvious differences between them in habitat,plant morphology,spore morphology and chromosome ploidy.Therefore,P.minor was upgraded from a variety of P.fauriei to a species.In order to clarify the distribution area and survival status of P.minor,ArcGIS 10.7software was used to construct the geographical distribution information maps of different geographical ranges of P.minor,by sorting out the previous collection records and research results,combined with the findings of the authors’field investigation,and its protection value was evaluated according to the standard of IUCN 3.1.The results show that:(1)In terms of the world geographical distribution pattern,P.minor is mainly distributed in Asia;In terms of the geographical distribution pattern in Asia,it is mainly distributed in China,Japan and Philippines;In terms of the geographical distribution pattern of China,it is mainly distributed in Zhejiang,Fujian,Macao,Hong Kong and Taiwan;In terms of the geographical distribution pattern of Japan,it is mainly distributed in the Ryukyu Islands;In terms of the geographical distribution pattern of Philippines,it is mainly distributed in the northern islands.(2)According to the IUCN 3.1 standard,the protection level of P.minor is temporarily set as near threatened(NT).According to the current data,the distribution range of P.minor is narrow,and its habitat is vulnerable to human activities,but it lacks protection for a long time.Therefore,corresponding protection suggestions were put forward finally.

关 键 词：海岸凤尾蕨 地理分布格局 保护价值 

分 类 号：S688[农业科学—观赏园艺]