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| 额济纳绿洲胡杨种群结构与分布格局研究 | |
| 引用本文： | 李军,张秋良,高润宏,陆平.额济纳绿洲胡杨种群结构与分布格局研究[J].干旱区资源与环境,2008,22(2):187-190. |
| 作者姓名： | 李军 张秋良 高润宏 陆平 |
| 作者单位： | 1. 乌兰察布职业学院,集宁,012000 2. 内蒙古农业大学林学院,呼和浩特,010018 3. 澳大利亚科工组织植物研究所,达尔文市 |
| 基金项目： | 国家自然基金项目(30160075)(30460017)，内蒙古自然科学基金重点项目(2007110203021)，春晖计划(Z2004-2-15017)资助 |
| 摘 要： | 在内蒙古阿拉善盟额济纳旗一道桥、二道桥、三道桥、和四道桥的胡杨自然保护区内设置9个10m×10m样地,应用相邻格子法进行每木调查,并对胡杨(Populus euphratica)种群结构和分布格局进行了分析。结果表明:胡杨的种群结构为衰退型,幼苗、幼树和中龄树数量较小。额济纳胡杨种群整体分布格局为聚集分布,随着径级的增大其分布格局呈现规律性变化,幼小植群呈强聚集分布,大树倾向于随机分布,中龄树和成年树由聚集分布向随机分布过度。 |
| 关 键 词： | 胡杨 种群结构 分布格局 |
| 文章编号： | 1003-7578(2008)02-187-04 |
| 修稿时间： | 2007年11月18 |
Study on the Population Structure and Distribution Pattern of Populus euphratica Populations in Ejina Oasis |
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| LI Jun,ZHANG Qiu-liang,GAO Run-hong,LU Ping.Study on the Population Structure and Distribution Pattern of Populus euphratica Populations in Ejina Oasis[J].Journal of Arid Land Resources and Environment,2008,22(2):187-190. | |
| Authors: | LI Jun ZHANG Qiu-liang GAO Run-hong LU Ping |
| Abstract: | 9 plots were established in First Road Bridge,Second Road Bridge,Third Road Bridge and Fourth Road Bridge of Populus euphratica forest nature protect area in Ejina Inner Mongolia for the obtaining of sampling data by tally in the contiguous quadrats.Through the analysis of Populus euphratica population structure and distribution pattern,the results showed that: the diameter structure was declining and the resources of little and young trees were pinch.The distribution pattern was clustering in general.With the increase of size classes and difference of development phases,the distribution pattern changed from aggressive distribution tended to random distribution,middle and manhood were transition from aggressive distribution tended to random distribution. |
| Keywords: | Populus euphratica population structure distribution pattern |
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