| 安宁河中上游河谷平原古树资源特征研究 |
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| 引用本文： | 张孝辉,米建波,寸正良,林静,刘光华,简毅.安宁河中上游河谷平原古树资源特征研究[J].四川林业科技,2019(4):34-38. |
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| 作者姓名： | 张孝辉 米建波 寸正良 林静 刘光华 简毅 |
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| 作者单位： | 西昌市林业和草原局;四川省林业科学研究院 |
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| 基金项目： | 森林和湿地生态恢复与保育四川省重点实验室资助项目 |
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| 摘 要： | 为了解安宁河中上游河谷平原区古树资源特征,并对其进行评价,提供古树保护决策依据。共调查古树826株,分属5科21属22种。结果表明:该区主要古树包括黄连木( Pistacia chinensis )、侧柏( Platycladus orientalis )、黄桷树( Ficus virens var. sublanceolata )、皂荚( Gleditsia sinensis )、麻栎( Quercus acutissima )和朴树( Celtis sinensis )6种(n>50),其中朴树古树种群健康状况最好,黄桷树、皂荚和麻栎次之,黄连木和侧柏最差,这6个树种同时也是该区优良的乡土树种;树高、胸围、冠幅两两相关系数最高的是黄连木,具体拟合树体特征回归曲线的条件,朴树树体特征相关性不显著。
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| 关 键 词： | 西昌市 树体特征 正态分布 相关分析 评价 |
A Study of the Characteristics of Ancient Trees in the Middle and Upper Reaches of the Anning River Valleys,Sichuan |
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| ZHANG Xiao-hui,MI Jian-bo,CUN Zheng-liang,LIN Jing,LIU Guang-hua,JIAN Yi.A Study of the Characteristics of Ancient Trees in the Middle and Upper Reaches of the Anning River Valleys,Sichuan[J].Journal of Sichuan Forestry Science and Technology,2019(4):34-38. |
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| Authors: | ZHANG Xiao-hui MI Jian-bo CUN Zheng-liang LIN Jing LIU Guang-hua JIAN Yi |
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| Institution: | (Xichang Forestry And Grassland Bureau, Liangshan 615000, China;Sichuan Academy of Forestry, Chengdu 610081, China) |
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| Abstract: | The characteristics of ancient tree resources were investigated and evaluated to provide the decision basis of ancient tree protection in the plain area of the middle and upper reaches of the Anning river. A total of 826 ancient trees were investigated, belonging to 22 species, 21 genera and 5 families. The results showed that the main tree species were Pistacia chinensis, Platycladus orientalis, Ficus virens var. sublanceolata, Gleditsia sinensis, Quercus acutissima and Celtis sinensis (n > 50). C. sinensis population was in best health, F. virens var. sublanceolata, G. sinensis and Quercus acutissima populations were secondary, Pi. chinensis and Pl. orientalis were the worst, these six tree species were the excellent native tree species as well. The two correlation coefficients of tree height, trunk girth and crown width were the highest in Pi. chinensis samples, which fitted the regression curve of tree characteristics, but the characteristic correlation of C. sinensis samples were not in significant correlation. |
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| Keywords: | Xichang city Tree body characteristics Normal distribution Correlation analysis Assessment |
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