| 景泰石质山坡沙冬青天然种群分布特征 |
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| 引用本文： | 朱淑娟,严子柱,张进虎. 景泰石质山坡沙冬青天然种群分布特征[J]. 甘肃林业科技, 2009, 34(2): 1-6 |
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| 作者姓名： | 朱淑娟 严子柱 张进虎 |
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| 作者单位： | 1. 甘肃农业大学,甘肃,兰州,730070;甘肃省治沙研究所,甘肃省荒漠化防治重点实验室,甘肃,兰州,730070
2. 甘肃省治沙研究所,甘肃省荒漠化防治重点实验室,甘肃,兰州,730070 |
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| 基金项目： | 甘肃省技术研究与开发专项计划项目:甘肃沙冬青种群生态与保育技术研究 |
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| 摘 要： | 对石质山坡天然沙冬青的群落特征、种群密度、株高、冠幅、分枝数、新稍生长量等指标进行了对比研究，结果表明：在不同立地条件下，天然沙冬青的种群特征、年龄结构及分布格局有着明显差异；石质山坡沙冬青种群长势顶部优于其他部位，阳坡面优于阴坡面；天然沙冬青种群在阳坡和阴坡顶部呈现均匀分布，而在阴坡中部和底部呈现集群分布；阳坡面和阴坡面沙冬青种群主要为幼树，属稳定性种群，尚未出现严重衰退的迹象。
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| 关 键 词： | 沙冬青 石质山坡 天然种群 分布特征 |
Population Distribution Characteristics of Natural Ammopiptanthus mongolicus on Stony Hillside in Jintai |
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| ZHU Shu-juan,YAN Zi-zhu,ZHANG Jin-hu. Population Distribution Characteristics of Natural Ammopiptanthus mongolicus on Stony Hillside in Jintai[J]. Journal of Gansu Forestry Science and Technology, 2009, 34(2): 1-6 |
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| Authors: | ZHU Shu-juan YAN Zi-zhu ZHANG Jin-hu |
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| Affiliation: | ZHU Shu-juan1,2,YAN Zi-zhu2,ZHANG Jin-hu2(1.Gansu Agriculture University,Lanzhou 730070,China,2.Gansu Desert Control Research Institute/Gansu Key Lab.of Desertification Combating,Lanzhou 730000,China) |
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| Abstract: | Comparative study was conducted on the indexes of community characteristics,population density,plant height,crown diameter,branch number and newshoot increment of natural Ammopiptanthus mongolicus on stony hillside.The results showed: there were obvious differences in population characteristics,age structure and distribution pattern of Ammopiptanthus mongolicus under different site conditions,Ammopiptanthus mongolicus population grew better on the top than on the other locations,and they grewbetter on south... |
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| Keywords: | Ammopiptanthus mongolicus stony hillside natural population distribution characteristics |
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