摘要
海拔梯度是决定生物多样性分布格局的重要因素之一,物种多样性沿海拔梯度上的变化规律一直是生态学研究的热点.以滇东北会泽县大海草山亚高山草甸为研究对象,通过野外样方调查和统计分析,探讨了亚高山草甸的生物多样性沿海拔梯度的变化.结果表明:在3 150~3 950 m五个海拔梯度上,滇东北亚高山草甸植物群落的物种丰富度、Shannon-Wiener指数和Pielou指数均表现出随海拔梯度的增加而显著减少的负相关关系(P<0.05),即随着海拔的升高,物种多样性呈显著下降趋势.
Altitude gradient is one of the most important factors that determine the distribution patterns of biodiversity,and the relationship of species diversity and altitude gradient has always been a hot topic in ecological research.In this paper,the subalpine meadow in Dahai Mountain,Huize County,Northeastern Yunnan was taken as the research object,and the distribution patterns of biodiversity along the elevation gradient were discussed through field quadrat investigation and statistical analysis.The results showed that the species richness,Shannon-Wiener index and Pielou index of the alpine meadow plant communities in Northeastern Yunnan decreased significantly with the increase of altitude along five altitudes from 3 150 to 3 950 m(P< 0.05),and the species diversity showed a significant downward trend.
作者
于龙
秦雪
马美
YU Long;QIN Xue;MA Mei(School of Culture and Tourism,Qujing Normal University,Qujing Yunnan 655011;Longqing Ethnic Middle School of Shizong County,Qujing Yunnan 655706;School of Biological Resources and Food Engineering,Qujing Normal University,Qujing Yunnan 655011,China)
出处
《曲靖师范学院学报》
2022年第3期42-45,共4页
Journal of Qujing Normal University
基金
国家自然科学基金项目“地形对三江源区高寒草地暖季草场载畜量空间分布格局的影响”(31660680)
曲靖师范学院教育教学改革项目“基于乡土特色的地理综合实习研究与实践”(JGXM201806)。
关键词
亚高山草甸
物种多样性
海拔梯度
Subalpine meadow
species diversity
altitudinal gradient
