| 柳杉树冠特征及承雪能力研究 |
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| 引用本文： | 艾训儒,易咏梅,彭诚,王柏泉,姚兰,熊彪. 柳杉树冠特征及承雪能力研究[J]. 湖北民族学院学报(自然科学版), 2008, 26(4) |
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| 作者姓名： | 艾训儒 易咏梅 彭诚 王柏泉 姚兰 熊彪 |
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| 作者单位： | 湖北民族学院生物科学与技术学院,湖北恩施445000 |
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| 基金项目： | 湖北省自然科学基金 ， 湖北民族学院科研团队项目 |
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| 摘 要： | 对柳杉树冠特征和承雪能力进行了研究,结果表明,22年生不同径级的柳杉平均冠幅为2.63～5.34m.平均冠高为5.39～9.98 m,它们与胸径的关系模型是L=0.017327+0.162 113 D,H=1.0223238 D-0.126759.枝密度有树冠中层高、下层和上层低的趋势,枝基径、枝长与枝下高的关系模型是h=8.078750-3.719225 d、h'=7.921 565～4.0319171,冠形为圆锥体.柳杉地上部分自重和极限承雪能力与胸径之间的关系模型是F=-618.858453+174.655412D、W=-70.205010+17.824595 D.
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| 关 键 词： | 柳杉 树冠特征 承雪能力 |
Study on Crown Feature and Bearing Snow Capacity of Cryptomeria Fortunei |
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| AI Xun-ru,YI Yong-mei,PENG Cheng,WANG Bai-quan,YAO Lan,XIONG Biao. Study on Crown Feature and Bearing Snow Capacity of Cryptomeria Fortunei[J]. Journal of Hubei Institute for Nationalities(Natural Sciences), 2008, 26(4) |
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| Authors: | AI Xun-ru YI Yong-mei PENG Cheng WANG Bai-quan YAO Lan XIONG Biao |
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| Affiliation: | AI Xun-ru,YI Yong-mei,PENG Cheng,WANG Bai-quan,YAO Lan,XIONG Biao(School of Biological Science , Technology,Hubei University for Nationlities,Enshi 445000,China) |
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| Abstract: | The crown feature and snow-bearing capacity of Cryptomeria fortunei were discussed in this paper.The results showed that the crown mean width was 2.63~5.34 m,and the crown mean height was 5.39~9.98m of different diameter grade in 22 years.The relational model between diameter breast-high and crown mean(or crown mean height) was L=0.017327+0.162113D,H=1.0223238D-0.126759.The shoot density of crown mid-layer was showing a tendency to heighten and the crown upper and lower layer was showing a tendency to lower... |
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| Keywords: | Cryptomeria fortunei crown feature snow-bearing capacity |
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