【正确答案】·Final felling
   ·Target: mature and overmature timber stands
   ·Purpose: timber production
   ·Criteria: favors forest regeneration, reduce negative ecological impacts
   ·Intermediate felling
   ·Target: immature stands
   ·Purpose: promote stand growth, improve stand quality
   ·Criteria: cutting stands with high density while keeping the one with low density, cutting trees in bad condition while keeping the good ones
   ·Regeneration cutting
   ·Target: protection/shelter forests
    ·Purpose: improve forest efficiency, promote regeneration
    ·Criteria: cutting weak, overmature, or maladapted trees
    ·Low yield forest improvement
    ·Target: low yield forest
    ·Purpose: create stands with high quality and yield
    ·Criteria: cutting stands with low yield and quality