| 塔里木河流域灰叶胡杨种内竞争研究 |
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| 引用本文： | 韩路,王海珍,周正立,李志军.塔里木河流域灰叶胡杨种内竞争研究[J].塔里木农垦大学学报,2006,18(2):1-4. |
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| 作者姓名： | 韩路 王海珍 周正立 李志军 |
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| 作者单位： | 1. 新疆生产建设兵团塔里木盆地生物资源保护利用重点实验室,新疆,阿拉尔,843300;塔里木大学植物科技学院,新疆,阿拉尔,843300
2. 塔里木大学植物科技学院,新疆,阿拉尔,843300 |
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| 基金项目： | 新疆生产建设兵团塔里木盆地生物资源保护利用重点实验室开放基金(BR0603)，塔里木大学校长基金硕士资金项目(TDZKSS05008) |
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| 摘 要： | 用Hegyi单木竞争指数模型对塔里木河流域的灰叶胡杨种内竞争进行了定量分析。结果表明:种内竞争强度随着林木径级、龄级的增大而逐渐减小;当灰叶胡杨胸高直径达到30 cm或龄级达120年以上时,竞争强度变化很小,种群结构基本稳定。竞争指数随着树冠面积、树高的变化呈现与径级、龄级类似的变化规律,表明树冠面积、树高可作为衡量竞争强度的参数。
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| 关 键 词： | 灰叶胡杨 种内竞争 竞争指数 种群结构 |
| 文章编号： | 1009-0568(2006)02-0001-04 |
| 修稿时间： | 2006年4月13日 |
Study on Intraspecific Competition in P.prninosa schrenk Forest in Tarim River Basin |
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| Han Lu,Wang Haizhen,Zhou Zhengli,Li Zhijun.Study on Intraspecific Competition in P.prninosa schrenk Forest in Tarim River Basin[J].Journal of Tarim University of Agricultural Reclamation,2006,18(2):1-4. |
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| Authors: | Han Lu Wang Haizhen Zhou Zhengli Li Zhijun |
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| Abstract: | By using Hegyi individual tree competition index model,intra-specific competition in P.prninosa schrenk forest was investigated in Tarim river basin.The results showed that intra-specific competition intensity of P.prninosa schrenk reduced with diameters scale and age increase.The changing of competition intensity was small when the diameter grew to 30cm and the age increased to 120.Its population structure was relatively stable.The competition changing of crown area and tree height showed the same rule.It indicated crown area and tree height can be used as parameter of competition intensity. |
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| Keywords: | P prninosa schrenk intraspecific competition competition index population structure |
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