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| 荆条+白羊草群丛植物种多样性研究 | |
| 引用本文： | 张明如,王学勇,马增旺,翟明普,赵广智.荆条+白羊草群丛植物种多样性研究[J].内蒙古农业大学学报(自然科学版),2006,27(3):6-12. |
| 作者姓名： | 张明如 王学勇 马增旺 翟明普 赵广智 |
| 作者单位： | 1. 浙江林学院旅游学院,临安,300311 2. 河北林业科学研究院,石家庄,050061 3. 北京林业大学教育部森林培育重点实验室,北京,100083 |
| 基金项目： | 高等学校博士学科点专项科研项目;科技部科技攻关项目 |
| 摘 要： | 研究了荆条 白羊草群丛植物种多样性、生态成分、果实类型、花型和根型构成特点。采用邻接小样方对植物种多样性进行定量分析,结果表明:随坡位上移,Shannon-w iener多样性指数下降幅度最大,P ielou均匀度指数下降幅度很小,多年生杂类草禾草植物和一年生植物数量减少,草质藤本植物消失,肉质草本植物样方数量增加,但仍以多年生杂类草禾草植物和一年生植物数量在整个坡面最多;总状花序和圆锥花序植物种数量、中旱生植物数量均最多,根系类型谱为轴根型>根蘖型>根茎型>丛生型>鳞茎型。说明荆条 白羊草群丛的植物繁殖对策以属于风媒花与虫媒花并存、风播种子和深根系植物为基本特征,是由零星分布的乔木树种、间断分布的灌木层片和恒有草本层片构成。 |
| 关 键 词： | 植物种多样性 疏灌草丛 坡位 太行山低山丘陵区 |
| 文章编号： | 1009-3575（2006）03-0006-07 |
| 收稿时间： | 2006-04-20 |
| 修稿时间： | 2006-04-20 |
PLANT SPECIES DIVERSITY OF THE ASSOCIATION OF VITEX NEGUNDO VAR HETEROPHYLLA-BATHRIOCHLOA ISCHAEMUM |
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| ZHANG Ming-ru,WANG Xue-yong,MA Zen-wang,ZHAI Ming-pu,ZHAO Guang-zhi.PLANT SPECIES DIVERSITY OF THE ASSOCIATION OF VITEX NEGUNDO VAR HETEROPHYLLA-BATHRIOCHLOA ISCHAEMUM[J].Journal of Inner Mongolia Agricultural University(Natural Science Edition),2006,27(3):6-12. | |
| Authors: | ZHANG Ming-ru WANG Xue-yong MA Zen-wang ZHAI Ming-pu ZHAO Guang-zhi |
| Institution: | 1. School of Tourism ,Zhejiang Forestry College,Linan 311300,China 2. Hebei Academy of Forestry ,Shijiazhuang 050061 ,China; College of Resources and Environment, Beifing Forestry University, Beijing 100083, China |
| Abstract: | Plant species diversity,ecological compositions,fruit type,flower type and root type in the association of Vitex negundo var.heterophyllaBathriochloa ischaemum were studied,and the characteristics of plant species diversity were quantitatively researched by neighbor sub-plot.The results showed that:with the slope moving up,Shannon-wiener index reduced greatly and Pielou evenness index decreased a little.The species number of perennial weed,graminoid plant and therophyte decreased.Herb liana disappeared and the number of sub-plot for the succulent increased,but the species number of perennial weed, graminoid plant and therophyte on the whole slopes were the largest;the number of species belonging to the achene and the caryopsis was the most,and the number of plant species belonging to the raceme,the panicle and the mesoxerophyte was the largest.The root-type spectrum was as follows: taproot type>root sprout type>rhizome type>tuft root type>bulbous root type.It is concluded that the plant reproduction strategy of the association of Vitex negundo var.heterophylla-Bathriochloa ischaemum is characterized by combining plants with the amemophilous flower,the entomophilous flower,the aerochorous seed and the taproot system to adapt to the modern environment in the hilly area of Taihang mountains.The association of Vitex negundo var.heterophylla-Bathriochloa ischaemum is composed of the tree species with the scattered distribution pattern,the shrub synusium with discontinuous distribution and the constant herb synusium. |
| Keywords: | Plant species diversity shrub-grassland slope position the hilly area of Taihang Mountains |
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