白三叶气候生态型聚类分析  

A Polymeric Classifying Analysis on the Ecotypes of White Clover(Trifolium repens L)

作　　者：李向林[1] 蒋文兰[1] 

机构地区：[1]甘肃草原生态研究所贵州高原站

出　　处：《草业学报》1990年第1期91-94,共4页Acta Prataculturae Sinica

摘　　要：本文在野外调查的基础上,通过模糊聚类分析的方法,对白三叶在我国的气候生态型进行了初步的研究.白三叶野生种在我国的云南、贵州、四川、湖南、湖北、江苏、新疆和吉林等省均发现有分布.本文将我国的野生白三叶分为七个具有不同生态气候适应性的类型.研究表明,白三叶对光、温的适应幅度较广而对水分的适应幅度较窄.通过对野生白三叶不同生态型的栽培驯化,在我国扩大现有白三叶栽培范围是可能的.The paper deals with the distribution of wild thite clover and its ecotypes all over China.An investigation was taken and it was found that wild white clover species were re- corded to be distributed over Yunnan,Sichuan,Hubei,Hunan,Jiangsu,Zhejiang and Jiangxi provinces in South and Central China as well as over Xinjiang and Jilin provinces to the Northwest and Northeast.The wild white clover species were,in this study,classified into seven climatic ecotypes by roans of fuzzy set method.It appears that the white clover has a wider adaptive range to temperature and sunshine variability from humid to arid.It would be possible to grow white clover within different areas in a large extent in China by planting all the wild white clover ecotypes of China′s own now evaluated by us.

关 键 词：白三叶 生态型 

分 类 号：S8[农业科学—畜牧兽医]