活立木蓄积量
活立木蓄积量
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据2002年湖南省森林资源统计年报,全省林业用地面积18343.2万亩,森林覆盖率53.13%,活立木蓄积量31352.34万m3。
The statistical data annual reports of forest resources in Hunan are : forestry area 18.343 ? 2 million mu , forest cover rate 53.13 % , the growing stock volume 31.352 ?
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本文在综合森林覆盖率、活立木蓄积量、单位面积森林蓄积量等传统林业评价指标的基础上,研究提出了一项新的指标&森林厚度。
This paper analyzes the offect of forestry vegetation bestrewing rate change to inner drainage area runoff in the upper reach of Huma River in Daxinganling Area .