译 名：
Distribution Pattern of Pyrola decorata and Pyrola calliantha Population in Taibai Mountain
作 者：
Su Yue,Kang Yongxiang,Zhang Shijiao,Yu Beibei,Xue Liyan(Northwest Sci-Tech University of Agriculture and Forestry,Yangling 712100,P.R.China)
关键词：
Pyrola decorata;Pyrola calliantha;Population;Distribution pattern
摘 要：
The spatial distribution pattern of Pyrola decorata and Pyrola calliantha in Taibai Mountain was studied by using four aggregate indices of diffusion coefficient(C),negative binomial parameter(K),mean crowding(M*) and patch index(PA,I) as well as uniformity method,the nearest neighbor method and Iwao's equation.The results showed that the spatial distribution pattern of P.decorata and P.calliantha were aggregating distribution.Iwao's equation showed that the basic element for the distribution in both populations was an individual colony.The individuals in the P.decorata population attracted each other,but the ones in P.calliantha population excluded each other.
