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一、商品枝丫的伐区资源1.商品枝丫的伐区标准地调查发展商品枝丫生产。首先要摸清资源底数,为此,该局组织了人力和物力,于七八年在具有代表性的东风林场,进行了标准地的生产性的实际调查,调查的实际情况是:A,采育择伐方式,选标准地2.94公顷,设计总株数828株,总蓄积741m~3。设计保留株数650株,保留蓄积352m~3。郁闭度伐前0.8,保留0.5。实际出枝丫为97.9Rm~3,平均每
First, the commodity cutting Ya cutting resources 1. Commodity Yaoya cutting area standard investigation of the development of commodity production Ya. First of all, we must make clear the base of resources. For this reason, the bureau has organized manpower and material resources and carried out a standard survey of productive practices in a representative Dongfeng Forest Farm in 1978. The actual situation of the investigation is as follows: A. Mining Selection of cutting methods, select the standard 2.94 hectares, the total design of 828 strains of plants, the total volume of 741m ~ 3. The design reserves 650 plants, reserves 352m ~ 3. Canopy closed before cutting 0.8, keep 0.5. The actual branch Ya 97.9Rm ~ 3, on average