广西苦苣苔科植物濒危程度和优先保护序列研究  

Study on endangered degree and conserved levels for plants of Gesneriaceae in Guangxi

作　　者：葛玉珍[1] 辛子兵 黎舒 符龙飞[1] 温放[1] GE Yuzhen;XIN Zibing;LI Shu;FU Longfei;WEN Fang(Guangxi Institute of Botany,Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences,Guilin 541006,Guangxi,China)

机构地区：[1]广西壮族自治区中国科学院广西植物研究所,广西桂林541006

出　　处：《广西植物》2020年第10期1491-1504,共14页Guihaia

基　　金：国家自然科学基金(31860047,31460159,31260038);中国科学院重点部署项目(KFJ-3W-No1);广西自然科学基金项目(2017GXNSFAA198006);广西喀斯特植物保育与恢复生态学重点实验室项目(19-050-6);第21批广西“十百千”人才工程第二层次人选支持项目。

摘　　要：在资料收集和实地调查的基础上,以已知广西现存分布的苦苣苔科24属236种珍稀特有植物(截至2018年底)为研究对象,通过对其评价指标定量化和权重分配处理,计算各物种的"濒危系数"和"优先保护值",确定其濒危等级及优先保护次序。结果表明:236种广西苦苣苔科植物中有58种处于极危状态(CR),70种处于濒危状态(EN),72种处于易危状态(VU),31种处于近危状态(NT),5种处于无危状态(LC);优先保护值范围为0.429~0.952,其中被划为I级保护植物107种,Ⅱ级保护植物75种,Ⅲ级保护植物28种,Ⅳ级保护植物26种。该研究结果与国家级、省级植物保护的种类和级别以及根据文献和IUCN物种红色名录所综合得出的濒危等级情况在部分种类上存在一定差异,但与目前广西分布的苦苣苔科植物所受保护与受破坏的现象基本一致,大部分苦苣苔科植物在广西所遭受的威胁程度在进一步加强,应当引起重视。Based on data collection and field investigation,236 species belonging to 24 genera of Gesneriaceae distributed in Guangxi were selected as the research objects by the end of 2018. The "coefficient of endangerment"and the"value of superior conservation"were obtained through index quantification and weight allocation,thus the endangered levels and conservation priority classes were determined. The results showed that there were 58 critically endangered species,70 endangered species,72 vulnerable species,31 near threatened species,5 least concern species;the value of conservation priority ranged from 0.429 to 0.952,107 species were in the first grade protection,75 species as the second grade,28 species as the third grade and 26 species as the fourth grade. The results are basically consistent with the protection and destruction of Gesneriaceae in Guangxi,but there were some differences between the species and levels of plant protection at the national and provincial levels. Most of the Gesneriaceae plants are under threat in this area,which should be paid more attention to.

关 键 词：广西 苦苣苔科 评价 濒危程度 优先保护 

分 类 号：Q948.3[生物学—植物学]