摘要
运用聚集度指标、Iwao模型和Taylor幂法则等测定方法对天宝岩自然保护区天然猴头杜鹃种群空间分布格局进行了研究。结果表明:聚集度指标、Iwao模型和Taylor幂法则均说明天宝岩自然保护区天然猴头杜鹃种群的分布格局为聚集型,这是由猴头杜鹃种群本身的生物学特性、种间种内关系及其所处的环境条件等决定的。最后,根据Iwao回归方程,计算了不同密度和允许误差下的理论抽样数。
The spatial distribution of natural Rhododendron simiarum populations in Tianbaoyan nature reserve was studied by means of aggregated indices, Iwao model and Taylor equation, to provide theo-retical reference for the management of natural R. simiarum forests and the protection of the resources. The results showed that: the aggregated indices, Iwao model and Taylor equation indicated that the distribution pattern of R. simiarum populations in Tianbaoyan nature reserve was aggregated, which was determined by the biological characteristics of R. simiarum population, inter-specific and intra-specific relationship, and the environmental conditions and so on. According to the Iwao equation, the theoretical sampling numbers under different densities and allowing errors were calculated.
出处
《云南农业大学学报(自然科学版)》
CAS
CSCD
北大核心
2009年第5期734-738,共5页
Journal of Yunnan Agricultural University:Natural Science
基金
福建省自然科学基金(2008J0116)
中国博士后科学基金项目(20060390182)
国家自然科学基金项目(30870435)
关键词
天宝岩自然保护区
猴头杜鹃
空间分布格局
最适抽样数
Tianbaoyan nature reserve
Rhododendron simiarum
spatial distribution pattern
optimum sampling number