Characteristics and Comparison of Spatial Heterogeneity of the Main Species of Korean Pine Old Growth Forests Assessment of eco climatic suitability and climate change impacts of/on broad leaved Korean pine forest in Northeast China Effect of Liberation Cutting on the Vegetation Carbon Storage of Korean Pine Forests by Planting Conifer and Reserving Broad-leaved Tree in Changbai Mountains of China Caloric Values of Pinus koraiensis Population in Broad-Leaved Korean Pine Forests in Changbai Mountain Assessment of Protection Efficiency to the Changbai Mountain Nature Reserve The spatial heterogeneity of soil physical properties in forests Correlation between gap structure and tree diversity of mixed-broad-leaved Korean pine forests in northeast China