湖北林业科技

the 21-year,22-year old of two plots plantation for larix kaemferi(Lamb.)carr.in Changlinggang forest farm were studied on basis of three times thinning and clear cutting were got economic effect.The preliminary management effect of small-medium diameter pantation for larix kaemferi(Lamb.)carr.in southern high mountainous area was calculated.The effect of 22-year old Plantation for larix kaemferi(Lamb.)carr.from thinning to clear cutting achieved fifty-three thousand yuan per ha.The input-output Proportion ...