贵州月亮山自然保护区野生草本植物群落不同光环境物种多样性及结构特征  

Species diversity and structural characteristics of wild herbaceous plant communities in different light environments in Yueliangshan Nature Reserve,Guizhou Province

作　　者：陈荟 梁康 马亨发 李鹤 杨焱冰 袁丛军 余德会 CHEN Hui;LIANG Kang;MA Hengfa;LI He;YANG Yanbing;YUAN Congjun;YU Dehui(Guizhou Yunguanshan State Owned Forest Farm,Guiyang 550000,China;Guizhou Academy of Forestry,Guiyang 550000,China;Administration of Leigong Mountain National Nature Reserve,Leishan 557100,China)

机构地区：[1]贵州省云关山国有林场,贵州贵阳550000 [2]贵州省林业科学研究院,贵州贵阳550000 [3]贵州雷公山国家级自然保护区管理局,贵州雷山557100

出　　处：《贵州科学》2022年第1期82-86,共5页Guizhou Science

基　　金：黔科合基础-ZK〔2021〕一般097;黔科合基础-ZK〔2021〕一般089;黔科合服企“贵州省林下经济研究创新能力建设”〔2020〕4010。

摘　　要：对月亮山草本植物群落不同生境进行野外调查,分析野生草本植物物种组成、频度、重要值、生物多样性Simpson和Shannon-Wienner指数及结构特征相关数据,得出月亮山原生性较好,光环境对草本植物优势群落具有一定影响,草本植物种的丰富度最高的是林缘-岸边样地,相对较单一的是山鞍部-山凹和山鞍部-山顶样地。不同光环境的草本植物群落结构特征不同,草本植物对不同光环境有适应性。在林缘和山鞍部光环境下频度差值最大,最高频度为1,最低频度为0。各光环境大部分草本植物分布频度范围在0.2~0.5之间,说明排去各样地中优势草本植物,各光环境下草本植物频度具有一定稳定性。在山顶环境草本植物的重要性更高,在林缘和林中光环境下,草本植物平均重要值最低,相对的重要性也较低。频度值较高的草本植物重要值也相对较高。对不同光环境野生草本植物群落进行生物多样性Simpson和Shannon-Wienner指数分析,均得出4个光环境下多样性最高的是林中环境,生物多样性指数值最低均为山顶。通过草本植物群落物种多样性和结构特征分析,为该地域的草本植被群落的构建及物种多样性维持机制的研究提供参考。Field investigation was conducted on different habitats of herbaceous plant communities in Yueliangshan Nature Reserve,and the species composition,frequency,importance value,structural characteristics,Simpson and Shannon-Wienner indexes of the wild herbaceous plants were analyzed.It was concluded that Yueliangshan Nature Reserve had good primogenicity,and the light environment had a certain influence on the dominant herbaceous plant communities.The richness of herbaceous species was the highest in the forest edge-shore plots,and relatively single in the mountain saddle-concave and mountain saddle-top plots.Herbaceous plant communities had different structural characteristics in different light environments,and herbaceous plants had adaptability to different light environments.The frequency difference between forest edge and mountain saddle was the largest,the highest frequency was 1,and the lowest frequency was 0.The distribution frequency of most herbaceous plants in each light environment ranged from 0.2 to 0.5,indicating that the frequency of herbaceous plants in each light environment had certain stability when the dominant herbaceous plants were excluded.The importance value of herbaceous plants was higher in the mountain top environment,and the mean importance value of herbaceous plants was the lowest in the forest edge and forest light environment.Herbaceous plants with higher frequency values also had higher importance values.The Simpson and Shannon-Wienner index analysis showed that the forest environment had the highest biodiversity,and the mountain top environment had the lowest biodiversity.Through the analysis of species diversity and structural characteristics of herbaceous plant communities,this paper provides reference for the study on the construction of herbaceous plant communities and the mechanism of species diversity maintenance in this region.

关 键 词：草本植物群落 多样性指数 结构特征 重要值 频度 

分 类 号：S719[农业科学—林学]