Abstract:Integrated compose index (ICI) model, ICI=ln(∑B×∑IV×CAV), was first put forward to and used in this study. Twenty nine plots were selected in original broadleaved and Korean pine mixed forest in Changbai Mountain, Northeast China, to investigate the structure and biomass of various disturbed conifer-hardwood mixed selective cutting forests, secondary birch forests and larch plantation forests. Original broadleaved and Korean pine was viewed as a healthy benchmark. The health states and developing trends of ...