凉山州冕宁县冶勒保护区垂枝香柏物种资源特征分析  

Features Analysis of the Resource of Sabina pingii in Yile Preservation Zone of Mianning County,Liang shan prefecture

作　　者：杨涛[1] 王大勇 

机构地区：[1]西昌学院,四川西昌615013 [2]冕宁县林业局

出　　处：《中国林副特产》2008年第3期77-79,共3页Forest By-product and Speciality in China

摘　　要：采用样线法和样方法对凉山州冕宁县冶勒乡省级自然保护区垂枝香柏群落127个样方的调查,结果表明,垂枝香柏种群内个体年龄最小值为4.8年,最大值为679.3年,平均年龄为266.5年。保护区垂直香柏种群属下降型种群,种群的死亡率大于出生率。an investigation was made to understand the source of Sabina pingii in Yile Preservation Zone of Mianning County in Liangshan Prefecture. The results showed that the youngest was 4.8 years old, the oldest 697.3, and the average age was 266.5 in this Sabina pingii population. The population is decreasing. It features two trends： decreasing cone and increasing age, higher death rate and lower breeding ratio.

关 键 词：冶勒保护区 垂枝香柏 资源 特征 

分 类 号：S759.9[农业科学—森林经理学] S513[农业科学—林学]