海南热带雨林国家公园吊罗山植被群落物种多样性对海拔梯度的响应规律  

Response of Species Diversity of Diaoluoshan Vegetation Community to Altitude Gradient in Hainan Tropical Rain Forest National Park

作　　者：杨青青 陈小花 Yang Qingqing;Chen Xiaohua(Hainan Academy of Forestry(Hainan Academy of Mangrove),Haikou Hainan 571100;Hainan Key Laboratory of Monitoring and Application of Tropical Forestry Resources(plan),Haikou Hainan 571100)

机构地区：[1]海南省林业科学研究院(海南省红树林研究院),海南海口571100 [2]海南省热带林业资源监测与应用重点实验室(筹),海南海口571100

出　　处：《热带林业》2023年第3期4-8,15,共6页Tropical Forestry

基　　金：海南省省属科研院所技术创新项目(SQKY2022-0021):海南岛森林火灾时空分布、驱动机制及预测模型研究。

摘　　要：为了解海南热带雨林国家公园吊罗山片区植被群落物种多样性对海拔梯度的响应规律,在吊罗山不同海拔梯度共设立30个20m×20m的固定样方,对植被群落的物种多样性进行分析研究。结果表明:(1)调查区域内乔木层共计134种植物,以陆均松、琼南柿、鸭脚木和阿丁枫等为主要优势树种;(2)当海拔低于1000m时,陆均松为主要优势树种,当海拔高于1000m时,琼南柿占绝对优势;(3)随海拔高度的增加,乔木层的物种丰富度指数、多样性指数和均匀度指数呈先增大后减小的变化规律,表现为中海拔(960m~1000m)>低海拔(930m~950m)>高海拔(1010m~1070m)。研究结果为该区植被群落物种多样性的科学保护与恢复提供理论依据。In order to understand the response law of the species diversity of the vegetation community of Diaoluo Mountain in Hainan Tropical Rain Forest National Park to the altitude gradient,we selected 30 square quadrats with a side length of 20m at the high(1010m-1070m),medium(960m-1010m)and low(930m-950m)altitudes of Diaoluo Mountain to analyze the species diversity of the vegetation community.The results show that:(1)There are 134 species of plants in the arbor layer in the investigated area,and the main quantitative dominant species are Dacrydium pectinatum,Diospyros howi,Schefflera heptaphylla and Semiliquidambar cathayensis;(2)When the altitude is lower than 1000m,Dacrydium pectinatum is the main dominant tree species.When the altitude is higher than 1000m,Diospyros howi is absolutely dominant;(3)With the increase of altitude,the species richness index,diversity index and evenness index of tree layer in-creased first and then decreased,which showed that the middle altitude(960~1000m)>low altitude(930~950m)>high altitude(1010~1070m).The results provide a theoretical basis for the scientific protection and remote sensing monitoring of plant species diversity in this area.

关 键 词：热带雨林 国家公园 物种多样性 海拔梯度 陆均松 

分 类 号：Q948.158[生物学—植物学]