中国长白山脉松毛虫害的网络建模与分析

Network modeling and analysis of damage caused by pine moth in Changbai Mountain Mountain,China

该文基于生态位法则和竞争排除原理提出了林木虫害的时空影响域网络模型,利用该模型构建了2009-2013年的长白山脉松毛虫害关系网络拓扑结构,并对该网络结构的无标度性、节点重要性、平均路径长度等结构特征量进行了分析,结果表明,松毛虫虫害的发生因周围发生地区的松毛虫扩散直接导致的可能性不大,松毛虫网络节点连通性不好,网络比较疏松。

Based on the niches rule and the competitive exclusion principle,a model of space-time influence domain about the pest was proposed.According to this model the pine moth relationship networks of Changbai Mountains were extracted from2009to2013,and then the scale-free of network,important nodes and average path length were studied.The statistical results showed that the damage was less likely caused by pine moth which diffused from neighbor area,the network node connectivity of pine moth was bad and network was loose.