白马雪山自然保护区植物物种多样性海拔分布格局  

Altitude Distribution Pattern of Plant Species Diversity in the Baima Snow Mountain Nature Reserve, Yunnan Province

作　　者：聂佩潇 张彩彩 龙晓斌 李延鹏 肖文 NIE Peixiao;ZHANG Caicai;LONG Xiaobin;LI Yanpeng;XIAO Wen(Institute of Eastern-Himalaya Biodiversity Research,School of Agriculture&Biology,Dali University,Dali 671003,China;Collaborative Innovation Center for Biodiversity and Conservation in the Three Parallel Rivers Region of China,Dali 671003,China;The Provincial Innovation Team of Biodiversity Conservation and Utility of the Three Parallel Rivers Region from Dali University,Dali 671003,China;Baima Snow Mountain Weixi Management Branch of National Nature Reserve,Diqing 674600,China)

机构地区：[1]大理大学东喜玛拉雅研究院,农学与生物科学学院,云南大理671003 [2]中国三江并流区域生物多样性协同创新中心,云南大理671003 [3]大理大学三江并流区域生物多样性保护与利用省创新团队,云南大理671003 [4]白马雪山自然保护区维西管护分局,云南迪庆674600

出　　处：《四川林业科技》2022年第2期95-100,共6页Journal of Sichuan Forestry Science and Technology

基　　金：云南省基金地方高校联合专项(202001BA070001-227);云南省“万人计划”青年拔尖人才项目(YNWR-QNBJ-2019-262)。

摘　　要：为探讨白马雪山保护区内不同生活型植物的物种组成和多样性沿海拔的分布规律,以白马雪山自然保护区沿海拔梯度设置的7块样地(2300~3500 m)内的植物为研究对象进行调查。结果表明:1)在调查的7块样地中共记录到维管植物145种,隶属于52科,87属。2)乔木层的丰富度指数和Shannon-Wiener指数随海拔升高呈先上升后下降再上升趋势,灌木层丰富度指数和Shannon-Wiener指数沿海拔升高整体呈先下降后上升趋势,而草本层以上两个指数呈下降趋势;乔木层、灌木层和草本层的Simpson指数和Pielou指数均随海拔升高呈先下降后上升趋势。3)乔木层、灌木层和草本层Cody指数沿海拔升高均呈先上升后下降趋势。综上所述,不同生活型植物物种多样性沿海拔梯度表现出不同的多样性分布格局,对环境异质性和气候的敏感程度不同可能是影响植物物种多样性分布格局的重要因素。In order to explore the altitude distribution of plant species composition and diversity in Baima Snow Mountain Nature Reserve,the plants in 7 plots along the elevation gradient(2300-3500m)were investigated.The results showed that:1)There were 145 species of vascular plants belonging to 52 families and 87 genera in Baima Snow Mountain Nature Reserve were recorded in 7 plots investigated.2)The richness index and Shannon-Wiener index of tree layer first increased,then decreased and then increased with the elevation,while the richness index and Shannon-Wiener index of shrub layer first decreased and then increased with the elevation.The two indexes of herb layer showed a downward trend.The Simpson index and Pielou index of tree layer,shrub layer and herb layer all decreased at first and then increased with the elevation.3)The Cody index of tree layer,shrub layer and herb layer increased at first and then decreased with elevation.In conclusion,the composition of plant species in Baima Snow Mountain Nature Reserve was complex.The plants of different life forms showed different diversity distribution pattern along the altitude gradients,while the different sensitivities of different plant species to environmental heterogeneity and climate may be important factors affecting the diversity distribution pattern of plant species diversity.

关 键 词：植物群落 海拔梯度 物种组成 Α多样性 

分 类 号：Q948[生物学—植物学]