西南林业大学学报2012，Vol.32Issue(4)：61-65,5.DOI:10.3969/j.issn.2095-1914.2012.04.013
荒漠植物霸王种群空间分布格局
Spatial Distribution Pattern of Desert Plants Zygophyllum xanthoxylum
摘要
Abstract
Based on the field survey and integrated with contiguous grid sampling, the dynamic spatial distribution pattern of Zygophyllum xanthoxylum populations was analyzed with dispersion coefficient, average clumping index, aggregation index, Cassie index, Morisita index, and negative binomial indexes. The results showed that the spatial distribution pattern of Z. xanthoxylum populations in different distribution areas (in both community L and community P) was clustering distribution with high aggregation intensity. There was difference in the aggregation intensity between the two distribution areas and among the sample plots. The order of the aggregation intensity was L1 > L3 > L2 > P, > P3 > P2 The aggregation intensity of the L community was obviously higher than that of the P community, indicating the L community was in the stable stage, i. e. , along with the seed scattering and the plant rhizome reproducing, the aggregation intensity gradually strengthened and community stability gradually increased.关键词
霸王/分布格局/聚集分布/民勤Key words
Zygophyllum xanthoxylum/ spatial distribution pattern/ aggregative distribution/ Minqin County分类
农业科技引用本文复制引用
胡小柯,李亚,李得禄,朱国庆,吴春荣..荒漠植物霸王种群空间分布格局[J].西南林业大学学报,2012,32(4):61-65,5.基金项目
甘肃省荒漠化防治重点实验室建设项目资助 （）
甘肃民勤荒漠草地生态系统国家野外观测研究站资助. （）
