Species Composition and Succession Discipline on Lava Flow of Different Periods Volcano, Wudalianchi China

By adopting the concept of space as a substitute for time, The species composition and succession discipline after the volcanic eruption of different historical period in Wudalianchi were studied, which were new volcano Huoshao Mountain, Laohei Mountain and old volcano East Jiaodebu Mountain, Wohu Mountain and North Gelaqiu Mountain. According to the result, there were 192 kinds of vascular plants occur in the restoration process of primary succession, which belonged to 50 families and 126 genera in the survey areas, and the number of family, genus, species of plants in the gathering progress of natural recovery succession were increased first and then decreased as time goes by in the volcano succession.