摘要
本文介绍牦牛在世界及中国、蒙古、苏联、印度等国的生态地理分布、生态类型、数量,以及牦牛的数量分布与海拔高度、气温、降水量、年日照时数、草地类型等主要生态因子的定性定量关系。为牦牛资源的开发、划区、合理组织牦牛生产及牦牛的选育等提供依据。
This paper reviews the ocologo-geographic distribution, ecological type, and the amount of the yak in the world, China, Mongolia, Soviet Union and India, and the relation between the amount and distribution of the yak and the ecological factors. these imformation may provide a firm basis for the development of yak resources, the plan and organization of their production and the selection and breeding of the yak.
关键词
牦牛
生态地理分布
生态因子
Yak, Ecologo-Geographic Distribution, Ecological Factor.
