贵州省台江县南宫自然保护区翠柏群落特征与多样性研究  

Characteristics and diversity of Calocedrus macrolepis community in Nangong Nature Reserve, Taijiang County, Guizhou Province

作　　者：杨礼旦 陈应强 YANG Lidan;CHEN Yingqiang(Taijiang Forestry Bureau,Taijiang 556300,China)

机构地区：[1]贵州省台江县林业局,贵州台江556300

出　　处：《贵州科学》2023年第1期75-80,共6页Guizhou Science

摘　　要：为了解翠柏群落结构特征和多样性状况,更好地保护和利用翠柏资源,采用样地调查的方法对贵州省台江县南宫自然保护区翠柏群落进行调查。结果表明:(1)群落有植物41科51属64种(含种以下等级),其中蕨类植物5科5属6种;种子植物36科46属58种;(2)群落的翠柏(0.4335)重要值最大,次之为南方红豆杉(0.1041),翠柏是建群种,南方红豆杉、枫香、杉木为乔木层优势种;群落更新能力差,存在年龄断层现象,是个衰退型群落;(3)群落丰富度指数灌木层>草本层>乔木层;优势度指数乔木层>草本层>灌木层;H多样性指数草本层>乔木层>灌木层;均匀度指数乔木层>草本层>灌木层。说明灌木层物种丰富度最明显;乔木层优势度最明显;草本层H多样性指数最高,乔木层次之;乔木层均匀度指数最大,草本层次之;(4)本群落与广西木论、云南易门等地的翠柏群落具有相似性。南宫翠柏群落是一个古老的群落,应加大对其的保护。In order to understand the characteristics and diversity of the Calocedrus macrolepis community, and to better protect and utilize the resources, a plot survey was carried out on the Calocedrus macrolepis community in Nangong Nature Reserve, Taijiang County, Guizhou Province.The results showed that:(1)there were 64 species of plants belonging to 51 genera and 41 families in the community,including 6 species(5 genera,5 families)of ferns,and 58 species(46 genera,36 families)of seed plants;(2)the importance value ofCalocedrus macrolepis(0.4333)was the highest,followed byTaxus wallichiana(0.1041);Calocedrus macrolepiswas the founder species,whileTaxus wallichiana,Liquidambar formosanaandCunninghamia lanceolatawere the dominant species in the tree layer;the renewability of the community was poor,and the community was declining;(3) the community richness indexwas shrub layer >herb layer >tree layer;the dominance index was tree layer >herb layer >shrub layer;the H diversi-ty index was herb layer >tree layer >shrub layer;the evenness index was tree layer >herb layer >shrub layer;thespecies richness of the shrub layer was the most obvious;the dominance of the tree layer was the most obvious;theH diversity index was the highest in the herb layer,followed by the tree layer;the evenness index of the tree layerwas the highest,followed by the herb layer;(4)the community was similar to that in Mulun,Guangxi and Yimen,Yunnan.TheCalocedrus macrolepiscommunity in Nangong Nature Reserve is an ancient community,which should beprotected more.

关 键 词：翠柏 群落特征 物种多样性 南宫自然保护区 

分 类 号：Q948[生物学—植物学]