基于三维绿量的怀化城市公园植物群落物种多样性及生态效益研究  

Study on species diversity and ecological benefits of plant communities in Huaihua urban parks based on tridimensional green biomass

作　　者：杨岑 彭尽晖[1] 粟德琼 YANG Cen;PENG Jinhui;SU Deqiong(Hunan Agricultural University,Changsha 410128,Hunan,China;Huaihua Polytechnic College,Huaihua 418000,Hunan,China)

机构地区：[1]湖南农业大学,湖南长沙410128 [2]怀化职业技术学院,湖南怀化418000

出　　处：《湖南林业科技》2022年第5期29-35,共7页Hunan Forestry Science & Technology

基　　金：国家自然科学基金项目(31201656)。

摘　　要：采用典型样方法,对怀化市舞阳公园和五溪文化公园11个植物群落进行调查,分析群落植物多样性;采用“平面量模拟立体量”计算三维绿量值,计算两个公园植物群落生态效益及生态效益价值。结果表明:舞阳公园共有植物72科126属155种;Shannon-Wiener物种多样性指数平均值为1.2789,Simpson优势度指数为0.6422,Pielou均匀度指数为0.7353,Margalef物种丰富度指数为1.0700;总绿量密度为4.52 m^(3)·m^(-2),生态效益价值为129007元·a^(-1)·hm^(-2)。五溪文化公园共有植物41科65属81种;Shannon-Wiener物种多样性指数平均值为1.1670,Simpson优势度指数为1.1670,Pielou均匀度指数为0.7763,Margalef物种丰富度指数为0.9691;总绿量密度为2.77m^(3)·m^(-2),生态效益价值为65758元·a^(-1)·hm^(-2)。与五溪文化公园相比较,舞阳公园植物群落三维绿量密度大,单位面积生态效益价值高;乔木层植物种类单一,灌木及木本地被植物种类丰富。基于此,提出了科学设计、合理配置植物、丰富层次结构等优化措施。Through investigating the plant communities of Wuyang Park and Wuxi Cultural Park in Huaihua city,this paper analyzed the ecological benefits and plant diversity of the plant communities in the two parks,in order to provide several theoretical supports for the study of plant community diversity and ecological benefits of urban parks in Huaihua City.Eleven plant communities in two parks were investigated by using typical sample method to analyze community stratification structure and plant diversity.The tridimensional green biomass(TGB)was calculated by"plane quantity simulates stereo quantity".The ecological benefit and ecological benefit value of plant communities were calculated of each park.The results were shown that the Wuyang Park in Huaihua was home to 155 species of plants,belonging to 126 genera and 72 families.The Shannon-Winer average species diversity index was 1.2789,and the Simpson dominance index was 0.6422.The Pielou evenness index was 0.7353,while Margalef species richness index was 1.0700.The total TGB density was 4.52 m^(3)·m^(-2),and the total ecological benefit value was 129007 yuan·a^(-1)·hm^(-2).There were all together 81 species of plants belonging to 65 genera and 41 families in Wuxi Cultural Park.The Shannon-Winer average diversity,Simpson dominance index,Pielou evenness index,and Margalef species richness index was 1.1670,1.1670,0.7763,and 0.9691,respectively.The total green density was 2.77 m^(3)·m^(-2),and the total ecological benefit value was 65758 yuan·a^(-1)·hm^(-2).Compared with Wuxi Cultural Park,Wuyang Park has the higher TGB density of plant communities and the higher value of ecological benefits per unit area.The species of arbor plants were single,and the species of shrubs and woody vegetation were rich.Based on this,optimization measures such as scientific design,rational allocation of plants,and rich hierarchical structure were suggested.

关 键 词：物种多样性 三维绿量 生态效益 城市公园 怀化市 

分 类 号：S718.5[农业科学—林学] S731