中国忍冬科植物地理分布  

Geographical distribution of plants of Caprifoliaceae in China

作　　者：赵海沛[1] 牛松顷[2] 闫双喜[1] 秦小艳[1] 李林[1] 

机构地区：[1]河南农业大学,河南郑州450002 [2]河南职业技术学院,河南郑州450046

出　　处：《河南农业大学学报》2012年第6期668-673,686,共7页Journal of Henan Agricultural University

基　　金：国家自然科学基金项目(30870149)

摘　　要：研究了忍冬科植物在中国的地理分布情况.分析了该科的物种丰富度,发现其分布中心在四川、云南一带;计算了该科植物分布的特有性指数和相似性系数,得出其特有性中心在云南、四川、湖北等地,相似性系数较大的是地理上相近、环境异质性较小的地区的结论;对该科的垂直分布和水平分布情况进行了系统的研究,结果表明,垂直分布中心为1 000～3 000 m;水平分布中心为东经90°～120°和北纬20°～40°.The geographical distribution of Caprifoliaceae was researched in this paper. A systematic a- nalysis on the species richness was conducted. The results showed that Sichuan and Yunnan were its distribution center. Then species endemic index and similarity index were calculated, it was concluded that Yunnan, Sichuan and Hubei were its endemic centers, and similarity coefficient areas are those which have geographic proximity but smaller environmental heterogeneity. The vertical distribution and horizontal distribution of Caprifoliaceae plants were systematically researched. The results show that the vertical distribution center is 1 000 - 3 000 meters above sea level, while the horizontal distribution center is 20° -40°N and 90° -120°E.

关 键 词：忍冬科 物种丰富度 特有性指数 相似性指数 垂直分布 水平分布 

分 类 号：Q948.2[生物学—植物学] Q949.754.7