阿坝州羊的种群分布与气候生态环境的关系探讨

Relationship Between the Variety and Group distributions of sheep and Goat and the Climatic-Ecological Conditions

对阿坝州气候生态环境与羊的种群分布进行探讨,确定出绵羊、山羊适宜气候区的综合气候指标分别为:年均气温0.7—12℃,年≥0℃积温为1432.2—4366,年辐射总量130—147.9KJ/cm^2,年日照时数为2213.8—2417.9h,年降水量≥610mm,生长季干燥度0.094—1.048,隶属度:(?)x=1;年均气温4.7—13.5℃,年≥0℃积温2131—4892,年辐射总量101—122.9KJ/cm^2,年日照时数1637—2129.7h,年降水量492.7—830mm,生长季干燥度0.216—1.421,隶属度0.65<(?x)<1.两者之间为绵、山羊过渡气候生态区.为充分利用气候资源和羊的品种资源,为发展阿坝州养羊业提供了理论依据.

The relationships Between variety and colongy distributions of sheep and goat in Aba prefecture and the climate and ecological conditions were studied.The results indicate that the synthesize climatic targets of suitable climatic area for sheep and goat are as follows:The annual average temperature ℃,annual accumulative temperature of≥0℃,annual radiative capacity(kJ/ m^2),annual sunshine time(h)annual precipition(mm),dry degree of May to October and subordination were 0. 7～12℃,1432.2～4366℃,130～147.9KJ/cm^2,2213.8～2417.9h,≥ 610mm,0.094～1.048and (?)x=1 for the former,and these targets were 4.7～13.5℃,2131～ 4892,101～122.9KJ/cm^2,1637～2129.7h,492.7～830mm,0.216～1.421 and 0.65<(?)x<1 for the latter.The authors suggest that,there is a transitional climatic～ecological region for sheep and goat between the both areas mentioned above.