摘要
借助地理信息系统软件以及最近邻体分析扩展模块 ,采用修正后的最近邻体公式 ,研究了规则样地和不规则样地的种群分布格局。地理信息系统的应用 ,不但提高了格局分析的效率 ,也可以直观地反映种群的分布格局。与方差均值比相比 ,最近邻体法不受样方大小以及样地形状的影响。研究表明 ,无论在规则样地还是在不规则样地中 ,最近邻体法都非常有效。
With the aid of GIS software and its nearest-neighbor extension module, population distribution pattern in regular and irregular plots was studied with a revised nearest-neighbor method. The results indicate GIS can not only improve the efficiency of pattern analysis but also visually display the distribution pattern. Compared to variance-mean ratio, nearest-neighbor method is neither influenced by the size of quadrat nor by the shape of plot. It is also suitable for both regular and irregular plots.
出处
《中山大学学报(自然科学版)》
CAS
CSCD
北大核心
2003年第1期75-78,共4页
Acta Scientiarum Naturalium Universitatis Sunyatseni
基金
国家自然科学基金重点资助项目 ( 39830 310 )