摘要
研究柽柳的分布格局对种群结构与动态变化的影响,对阐明柽柳林生态系统的形成与维持种群的稳定性、种群的生态特征和更新等方面具有极为重要的意义。通过对额济纳绿洲中荒漠河岸林的主要树种多枝柽柳进行连续样方调查,用χ2检验和方差分析法对多枝柽柳的格局规模进行分析。研究结果表明,多枝柽柳分布类型为集群分布,格局规模为8m×8m,格局强度随着尺度的增加而减小,多枝柽柳呈现集群分布但集群强度不高,集群强度依赖于种群密度。
The research on impact of Tamarix ramosissima Ledeb distribution pattern on community structure and dynamics is very important to elucidate the ecosystem formation and maintenance as well as the community stability and succession law of the T.ramosissima Ledeb.Through continuous quadrat surveying,χ2test and variance analysis of T.ramosissima Ledeb,a main desert riparian forest species in the Ejina oasis,we carried out a study of the distribution pattern of T.ramosissima Ledeb.The results showed that the distribution of T.ramosissima Ledeb belonged to a cluster distribution type,and the pattern scale was 8 m×8 m;the pattern intensity of T.ramosissima Ledeb decreased with increasing of pattern scale.It suggested a relatively low cluster intensity depended on the species density.
出处
《中国沙漠》
CSCD
北大核心
2013年第1期106-109,共4页
Journal of Desert Research
基金
阿拉善盟科技局重点科技计划项目(2009-7-01)
内蒙古自治区自然科学基金项目(MS0612)资助
关键词
额济纳绿洲
重盐地
柽柳
分布格局
Ejina oasis
high salt land
Tamarix ramosissima Ledeb
distribution pattern
