Population demonography is the core of the research on population ecology ,which mainly discusses the population amount regularity along with time and space. The population area variability law of Quercus variabilis from the age structure 、 size structure 、 density structure and architectural constitution in different regions in Shaanxi were probed and discussed via plots method. The results suggested that, the amount of individuals in 3 、4 years old classes is more than that of any other age classes in Lou...
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