The population structure is typical metapopulation ( source-sink population ) with nine patches . the patch of west gully and shanwang-temple gully is the source population and the population in these patches is a dynamic process from extinction to reclonizition 种群结构为典型的异质种群,且为源-汇种群,共有九个斑块,山王庙、西沟斑块为最大的源种群斑块。