Tree Individual Pattern Control And Analysis Of Secondary Forest In Moarshan Mountain

This paper studies space pattern evolvement rules of natural secondary forest in maoershan district by applying the monopolized circle theory. The general trend of the natural forest pattern is from amass type to uniform type. So we should improve succession course on the base of improving the uniform index of secondary forest, when we artificially intervene the succession of the secondary forest Every arbor and young tree in the plot are positioned and tallied and the geography information database is founded on the base of data of the diameter, at breast height, total tree height and crown length.The new concept of regeneration interspecific association is put forward, the new formula of the regeneration interspecific association index is defined on the base of the monopolized circle theory. The interspecific association is spatial relationship of individuals in two populations substantively. And it is the correlativity of the two different individual groups in the different species. The new formula of the interspecific association index is defined, in order to avoid the change of the interspecific association index with the alterability of plot area. The regeneration interspecific association is the association between grown individuals and young ones in the same species and in the same space. The regeneration interspecific association is to describe the individual regenerative rules of the different tree species in the natural secondary forest.The analyses result shows that tilia and mongolian oak are suitable for regeneration under the same arboreal species and other trees is suitable under different arboreal species. Grown individuals and young ones appear in the same time in the flora, which is called positive correlativity. On the contrary, it is called negative correlativity. The regeneration interspecific association can be used to describe the repulsive, consistent and mutual-beneficial relationship. Interspecific associations between species is the description of appearance frequency of different individuals in same space, it can represent the sharing and competing reletionship between different individuals.