| 不同地形因子对杉木树冠结构与材积的影响研究 |
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| 引用本文： | 周玲.不同地形因子对杉木树冠结构与材积的影响研究[J].安徽农学通报,2014(16):83-84. |
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| 作者姓名： | 周玲 |
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| 作者单位： | 顺昌县林业科学技术中心,福建顺昌353200 |
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| 摘 要： | 在顺昌县杉木人工林中，分别在不同坡度、坡位、坡向选取18块林分设置圆形样地，分别测定树高、胸径、枝下高、冠径等，运用二元材积表法计算其材积，测算树冠体积、树冠率、树冠圆满度等因子，以比较分析不同地形因子对杉木树冠与材积的影响。结果表明：斜坡（相对）、下坡、阳坡处的杉木人工林生长优于陡坡（相对）、上坡、阴坡。
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| 关 键 词： | 立地条件 杉木 树冠结构 材积 |
Impacts of Different Terrain Factors on the Crown Structure and Volume for China fir |
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| Institution: | Zhou Lin (Forestry Science and Technology Center of Shunchang County, Shunchang 353200, China) |
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| Abstract: | To compare the influences of different terrain factors on the growth of crown and volume of China fir, 18 circle-shaped sample plots based on different slope gradients,slope positions and slope aspects were set in China fir plantation in Shunchang county. For the comparison analysis, the height, DBH, clear bole height and crown diameter in each plot were measured to calculate the volume of the trees using bi- nary volume table approach,as well as crown volume,crown ratio,crown-fullness ratio and other relevant factors.The results showed that the growth of China fir on clivus, downgrade slopes and sunny slopes was better than that on abrupt slopes ,upgrade slopes and shady slopes. |
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| Keywords: | Terrain factor China fir Crown structure Volume |
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