摘要
Data analysis was made for 54 stands of Chinese pine forests for soil and water conservation and timber. The regression equations were drawn up on forest density and different rafter timber and bush coverage.Based on those equations, the number of rafter timber trees, storage, number of non-raffer timber trees, stand volume and the output value were calculated for six different forest densities ranged from 1250 to 6600 trees/hm2.According to the economic and ecological criteria, the optimum density for Chinese pine forests was determined as 1 650 trees/hm2.
Data analysis was made for 54 stands of Chinese pine forests for soil and water conservation and timber. The regression equations were drawn up on forest density and different rafter timber and bush coverage. Based on those equations, the number of rafter timber trees, storage, number of non-rafter timber trees, stand volume and the output value were calculated for six different forest densities ranged from 1250 to 6600 trees/hm2. According to the economic and ecological criteria, the optimum density for Chinese pine forests was determined as 1650 trees/hm2.
