The genetic diversity of Dendrolimus tabulaeformis Tsai et Liu in forests of different stand types;

A preliminary analysis of the ecological economic efficacy of major stand types in Wujiang Watershed;

Soil hydrological function of main forest types in Tonglu’s ecological non-commercial forest

According to the renovation investigation under natural Korean pine forest,this paper states that there are con- sanguineous relationship among renovation,forest type and site conditions.

According to the soil particle distribution theory and the fractal theory,this paper studied soil structural property of seven different forest types and grassland.

This paper comparatively studies evapo-transporation of 6 representative forest types,such as young growth larch,half-mature larch ,young growth Korean pine,half-mature Korean pine,oak,weed tree,in mountain- ous area of eastern Liaoning by observing fixed plots.

Results indicate that there are great differences in soil bulk density and soil porosity for the three different forest types;soil bulk density increases with the increase in soil depth for all the forests;total soil porosity and capillary porosity both decrease with the increase in soil depth;the average soil bulk density of Chinese fir forests(1.