黄河兴县段盐风化地貌植被调查及物种多样性分析  

Vegetation Investigation and Its Species Diversity of Salic Weathering Landform in Xingxian Section of the Yellow River

作　　者：李军 张栩 白建 LI Jun;ZHANG Xu;BAI Jian(College of Life Science,Lyuliang University,Lyuliang Shanxi 033000)

机构地区：[1]吕梁学院生命科学系,山西吕梁033000

出　　处：《现代农业科技》2023年第19期131-135,149,共6页Modern Agricultural Science and Technology

基　　金：吕梁市社会发展项目(2021SHFZ-1-28)。

摘　　要：为了研究黄河兴县段盐风化地貌的植被在温带大陆性气候下的多样性,为此地区开发旅游业提供科学支撑,使用样方法共设8个样地,对此地区的植被进行调查并收集数据,计算物种多样性指数,再使用主成分分析法和聚类分析法进行分析验证。结果表明,物种多样性指数反映出5号样地的各项指数最高,6号样地的各项指数最低。通过主成分分析法提取出1个主成分,且累积贡献率达到了96.258%,综合得分排序为5、4、2、1、3、8、7、6号样地,而聚类分析中将1~5号样地归为一类,6~8号样地归为一类,两者相互佐证。由分析数据与实际地形可知,1~5号样地的地形较为复杂,有山地、盐风化地、平原,且受人为干扰较少,也可能是旅游开发时对此地物种与地貌进行了保护;而6~8号样地属于平原地带,人为干扰较大,导致物种的丰富度相对较差。因此,兴县未来开发旅游业时应注重保护地貌景观与植被。In order to study the vegetation diversity of salic weathering landform in Xingxian section of the Yellow River under temperate continental climate,and provide scientific support for the development of tourism in this area,this paper investigated the vegetation in this area by sampling method(8 plots),collected the data,calculated the species diversity indexes,and then analyzed and verified them by principal component analysis and cluster analysis.The results showed that the species diversity indexes were the highest in plot No.5 and the lowest in plot No.6.A principal component was extracted by the principal component analysis method,and the cumulative contribution rate reached 96.258%.The comprehensive scores were ranged as follows:plot No.5,No.4,No.2,No.1,No.3,No.8,No.7,No.6.The cluster analysis showed that the plot No.1-5 were divided into one class,while plot No.6-8 were divided into another class,which proved each other.According to the analysis data and the actual terrain,the terrain of sample plot No.1-5 was relatively complex,including mountains,salic weathering lands,plains,which has less artificial disturbance.The species and landforms here might have been protected during tourism development.However,sample plot No.6-8 belonged to the plain area,and the artificial disturbance was great,so the species richness was relatively poor.Therefore,when developing tourism in Xingxian County in the future,attention should be paid to the protection of landform and vegetation.

关 键 词：黄河兴县段 盐风化地貌 植被 物种多样性 气候 聚类分析 

分 类 号：Q948.1[生物学—植物学]