贵州特有极小种群乳纹方竹野外资源现状与分析  

The Current Situation of the Wild Resources of the Endemic Species of Chimonobambusa lactistriata in Guizhou

作　　者：伍明理 韦堂灵 刘艳江 朱潇 代朝霞 Wu Mingli;Wei Tangling;Liu Yanjiang;Zhu Xiao;Dai Zhaoxia(Key laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region(Ministry of Education),Collaborative Innovation Center for Mountain Ecology&Agro-Bioengineering(CICMEAB),College of Life Sciences/Institute of Agro-bioengineering,Guizhou University,Guiyang,Guizhou 550025,China;Bamboo Research Institute of Guizhou University,Guiyang,Guizhou 550025,China;Forestry Bureau of Wangmo County Guizhou Province,Wangmo,Guizhou 522326,China)

机构地区：[1]贵州大学生命科学学院/农业生物工程研究院,山地植物资源保护与保护种质创新教育部重点实验室,山地生态与农业生物工程协同创新中心,贵州贵阳550025 [2]贵州大学竹类研究所,贵州贵阳550025 [3]贵州省望谟县林业局,贵州望谟522326

出　　处：《山地农业生物学报》2022年第3期64-68,共5页Journal of Mountain Agriculture and Biology

基　　金：贵州省教育厅攻关项目(黔教合KY[2019]062)。

摘　　要：乳纹方竹(Chimonobambusa lactistriata)是仅产于贵州的禾本科特有竹种,自然分布面积极小。为了掌握乳纹方竹野外资源状况,对其进行野外资源调查。结果表明:(1)在模式标本采集地册亨县以及中国植物志记载分布地荔波县,均未发现该种,而在望谟县大观镇大塘村则发现有分布,分布面积约为600 m^(2);(2)通过样方调查,在乳纹方竹种群年龄结构中,3 a生竹和4 a生竹占71.4%,表明该种群有衰退趋势;个体竿高主要集中于2.0 m以下,枝下高主要低于0.5 m,植株地径范围介于0.5~1.5 cm;(3)依据IUCN物种红色名录濒危等级和标准(3.1版),乳纹方竹应评估为极危物种(CR,B1a+B2a);(4)保护措施建议以近地保护与就地保护为主,异地保护为辅。Chimonobambusa lactistriata(Poaceae:Bambusoideae)is endemic bamboo species in Guizhou,with a small natural distribution area.In order to master the field resources of C.lactistriata,the field resource investigations were carried out.Results showed that:(1)This species was not in its type locality(Ceheng Coutry)and Libo,where the species was recorded in Flora of China,but it was newly recorded in Datang Village,Daguan Town,Wangmo County,with a distribution area of about 600 m^(2).(2)According to the sample survey,we found that 71.4% individuals of this new population are three or four-year-old,indicating that the populationis declining.The height of most individuals was less than 2.0 m,the heights under the first branching were less than 0.5 m,and ground diameter of the plant rangeed from 0.5 cm to 1.5 cm.(3)Chimonobambusa lactistriata should be assessed as a critically endangered species criteria B1 a+B2 a according to the IUCN.(4)It is recommended that the protection measures focus on near-ground protection and in-situ protection,and supplemented by off-site protection.

关 键 词：特有竹种 乳纹方竹 IUCN 资源现状 

分 类 号：S718.54[农业科学—林学]