利用2010年贵州森林资源连续清查数据资料,采用一元材积表法对贵州省杉木蓄积量进行估算。分析贵州中心产区和一般产区杉木中龄林蓄积量在不同立地因子下的变化规律。结果表明:中心产区或一般产区的杉木单位面积蓄积量在不同立地条件下均有差异,地貌、坡位对杉木蓄积量有显著影响,坡向、坡度对其影响不显著。初步认为在中心产区与一般产区,不同气候类型是引起杉木生长差异的重要因素之一。
Based on the forest inventory data of 2010 in Guizhou province,this study aimed to estimate the stand volume of Chinese fir forest of middle age in the central region and ordinary regions with the method of single entry volume table,and analyzed the changing rules of the stand volume under different site factors.There were some differences in per unit area of stock volume between the central region and ordinary regions under different site conditions,and landform and slope positions had significant influence on the stand volume of Chinese fir forest,while the slope direction or slope angle hadn’t.The study showed that the central region and ordinary regions were in different climate types which maybe was the important reason leading to differences of growth in Chinese fir forest.
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