论文部分内容阅读
一、我国木材供应状况及产品结构(一)木材供应现状1.木材的产量。40年来,我国木材产量有较大的增长,国家计划内的木材年产量,1949年为567万立方米,1986年达到高峰,为6502万立方米。从1949年到1987年,累计生产木材15.4亿立方米,其中,“四五”期间平均年产量为4419万立方米,“五五”期间平均年产量为5100万立方米,“六五”期间为5585万立方米。1953年至1988年,年平均增长速度为3.8％。计划内木材产量的趋势如图1所示。
First, the status of timber supply and product structure in China (A) the status of timber supply 1. Wood production. In the past 40 years, there has been a great increase in the output of timber in our country. The annual output of timber under the state plan was 5,670,000 cubic meters in 1949 and reached a peak in 1986 of 65,020,000 cubic meters. From 1949 to 1987, a total of 1.54 billion cubic meters of wood was produced, of which the average annual output during the “Fourth Five-Year Plan” period was 44.19 million cubic meters and the average annual output during the “Five-Year Plan” period was 51 million cubic meters. During the “Sixth Five-Year Plan” period, 55.85 million cubic meters. From 1953 to 1988, the average annual growth rate of 3.8%. The trend of planned wood production is shown in Figure 1.