科尔沁沙地白沙蒿种群结构分析  

Analysis on Population Structure of Artemisia sphaerocephala in Horqin Sandy Land

作　　者：杜俊瑞[1] 王铁娟[1] 苏日格嘎 

机构地区：[1]内蒙古师范大学生命科学与技术学院,内蒙古呼和浩特010022

出　　处：《内蒙古林业科技》2016年第2期20-22,共3页Journal of Inner Mongolia Forestry Science and Technology

基　　金：国家自然科学基金项目(31160130)资助

摘　　要：对生长于科尔沁沙地迎风坡且为半固定沙地以及背风坡且为固定沙地的白沙蒿种群的年龄结构和表现结构进行了研究。结果表明:迎风坡的白沙蒿种群年龄结构为增长型,背风坡的年龄结构属于衰退型;迎风坡种群冠幅直径和基径呈逐级减少趋势,背风坡近似于正态分布;年龄与基径和冠幅有较强的相关性,与高度相关系不高。In this paper,the age structure and performance structure of Artemisia sphaerocephala have been studied,which grew in semi-fixed sandy land in windward slope and in fixed sandy land in leeward slope in Horqin Sandy Land. The results show that the age structure of population of Artemisia sphaerocephala in windward slope belongs to increasing type,and the one in leeward slope belongs to declining type. The crown diameter and base diameter of population of Artemisia sphaerocephala in windward slope is in a decreasing trend,the one in leeward slope is in a normal distribution. There is stronger correlation between age and base diameter and crown,and there is little correlation between age and height.

关 键 词：白沙蒿 年龄结构 表现结构 

分 类 号：Q948.15[生物学—植物学]