太白山雅美鹿蹄草和鹿蹄草种群分布格局  

Distribution Pattern of Pyrola decorata and Pyrola calliantha Population in Taibai Mountain

作　　者：苏悦[1] 康永祥[1] 张世姣[1] 余贝贝[1] 薛利艳[1] 

机构地区：[1]西北农林科技大学,杨凌712100

出　　处：《东北林业大学学报》2013年第1期89-93,99,共6页Journal of Northeast Forestry University

基　　金：林业公益性行业专项经费项目(200904004)

摘　　要：应用扩散系数(C)、负二项参数(K)、平均拥挤度(M*)、聚块性指数(PA,I)4种聚集度指标,均匀度法,最近邻体法和Iwao方程对太白山雅美鹿蹄草和鹿蹄草种群空间分布格局进行研究。结果表明:2种鹿蹄草种群的空间分布格局为聚集分布;Iwao方程表明,2种群分布的基本成分均是个体群,但雅美鹿蹄草种群个体间相互吸引,鹿蹄草种群个体间相互排斥。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,1 ） as well as uniformity method, the nearest neighbor method and Iwao＇ s equation. The results showed that the spa- tial 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 popula- tion attracted each other, but the ones in P. calliantha population excluded each other.

关 键 词：雅美鹿蹄草 鹿蹄草 种群 分布格局 

分 类 号：S718.542[农业科学—林学]