Based on traditional mingling, a new mingling, tree species diversity mingling, has been put forward.

【Method】 Using spatial structure parameters of the uniform angle index,mingling and neighborhood comparison index,the spatial structure characteristics of five different shrub transformation models were studied.

Three parameters,which are neighborhood pattern,mingling and neighborhood comparison,are used to describe spatial structure of the spruce-fir mixed stands of coniferous and broad-leaved trees in the over-logged forest of Changbai Mountains.

The first one was mingling, which could be used to analyze the spatial distribution and isolation of species in the stands.

Three indices (uniform angle index,mingling index and neighborhood comparison ratio) are used to describe and compare the spatial structure of the natural mixed forest undisturbed by human activities and the semi-natural mixed stand of larch (Larix olgensis)-spruce(Picea jazoensis)-fir(Abies nephrolepis) which only exists in the over-logged forest of Changbai Mountains.

To provide a referencing foundation for structural adjustments in a mixed larch (Larix olgensis)-spruce(Picea jezoensis)-fir(Abies nephrolepis) stand, found only in the over-logged forest of the Changbai Mountains, three parameters, namely uniform angle index, mingling index, and neighborhood compari-son, were used to describe spatial structure.

In his view,this international society comprises multipolar balance of power,transcending nation christian ethics and traditional diplomacy.

Since Russia became independent,its foreign policies have succeeded to its diplomatic traditions and also had some characteristics of its own,which reflect a series of fundamental changes in Russia and on the international stage at the turn of the century.