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作 者:李梦蝶 王立龙[2] 夏强 LI Mengdie(College of Ecology and Environment,Anhui Normal University,Anhui Wuhu 241000)
机构地区:[1]安徽师范大学生态与环境学院,安徽芜湖241000 [2]安徽师范大学生命科学学院,安徽芜湖241000
出 处:《林业科技》2023年第1期30-36,共7页Forestry Science & Technology
基 金:安徽省自然科学基金项目(1908085MD104);国家自然科学基金项目(41371162)。
摘 要:选择太平湖国家湿地公园三块受到不同程度旅游干扰的样地,对样地中草本植物物种的多样性进行数据调查,以与游径距离远近代表不同强度的旅游干扰为标准,分析不同强度的旅游干扰下太平湖湿地公园植物物种多样性的变化趋势。研究数据表明:(1)狗牙根是三处调查样地中数量最多的草本植物,禾本科植物是人为干扰下的优势科。(2)龙窑寨样地是三处样地中物种数最丰富的样地,钓场次之,八卦岛最低,且6m处的物种数最高,3m处次之,1m处最低,三处样地的6m处与1m处的样方差异显著。越靠近游径,受到的人为扰动越大,样方内的植物物种数越低,且中等程度的人为干扰有利于增加样地内植物物种的数量。(3)随着旅游干扰强度的增大,太平湖湿地公园内三处样地内植物的Shannon多样性指数、Pielou均匀度指数、Simpson多样性指数、Margalef丰富度指数均呈现逐渐下降的趋势。说明旅游强度的干扰会导致物种多样性的变化,干扰的强度越大,样地内物种多样性的数值越低。最后论文提出,太平湖国家湿地公园应控制旅游开发强度,加强生态游步道建设,减少旅游对物种多样性影响。The paper selects three pieces of sample area by different degree of tourism disturbance,the diversity of plant species in the sample area data investigation,and with the trails of distance represent different intensity of tourism disturbance as the standard,under different intensity of tourism disturbance analysis the change trend of Taiping Lake Wetland Park plant species diversity.Research data shows that:(1)Cynodon dactylon was the most abundant herbaceous plant in the three plots,and gramineae was the dominant family under human disturbance.(2)Longyao Village plot was the most abundant in species number among the three plots.The number of fishing sites was the lowest in Bagua Island,and the number of species was the highest at 6 m,followed by 3 m and the lowest at 1 m.There were significant differences between plots at 6 m and 1 m in the three plots.The closer to the swim path,the greater the anthropogenic disturbance,the lower the number of plant species in the plot,and the moderate anthropogenic disturbance is conducive to increasing the number of plant species in the plot.(3)With the increase of tourism disturbance intensity,the Shannon diversity index,Pielou evenness index,Simpson diversity index and Margalef richness index of the three plots in Taiping Lake Wetland Park showed a decreasing trend.This indicated that the disturbance of tourism intensity would lead to the change of species diversity,and the greater the disturbance intensity,the lower the value of species diversity in the sample plot.Finally,the paper proposes that Taiping Lake National Wetland Park should control the intensity of tourism development,strengthen the construction of tourist trails to reduce the impact of tourism on species diversity.
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