| 衡阳盆地紫色土丘陵坡地自然恢复灌丛阶段主要种群联结性分析 |
| |
| 引用本文： | 陈志阳,姚先铭,田小梅. 衡阳盆地紫色土丘陵坡地自然恢复灌丛阶段主要种群联结性分析[J]. 勤云标准版测试, 2009, 29(19) |
| |
| 作者姓名： | 陈志阳 姚先铭 田小梅 |
| |
| 作者单位： | 陈志阳,姚先铭(湖南环境生物职业技术学院园林系,湖南衡阳,421005);田小梅(湖南环境生物职业技术学院信息技术系,湖南衡阳,421005)? |
| |
| 基金项目： | 国家林业局948重点项目"工矿区土壤超富集植物材料选择及修复技术引进"? |
| |
| 摘 要： | 采用2×2列联表,对衡阳盆地自然恢复灌丛阶段植物群落中20个主要种的种间联结性进行分析,结果表明:自然恢复灌丛阶段群落优势种多物种间显著负关联;群落中重要值较高的20个种群组成的190种对中;有58对呈显著正联结,有34对呈显著负联结;以X2为基础,结合联结系数和种间关联度的3个指标较好地测定了20个主要植物种群的联结性.
|
| 关 键 词： | 灌丛群落 种间关联 重要值 X2检验 衡阳盆地 |
Interspecific Associations Analysis of Principal Species in Natural Vegetation Recovery Shrub Stage in Sloping-land with Purple Soils in Hengyang Basin |
| |
| Abstract: | Based on 2×2 contingency table,the interspecific association of 20 principal plant species in natural vegetation recovery shrub stage in sloping-land with purple soils in Hengyang Basin was studid.The results showed that:(1)The overall associations among dominant species in plant community had significant negative association;(2) Among 190 pairs of species in higher important values 20 plant populations,58 pairs were significant positive association and 34 pairs were significant were negative association;(3) Based on x2 correction test,together with association coefficient and 3 index in interspecific connection,the interspecific association in 20 principal plant species could be better measured. |
| |
| Keywords: | shrub communityzz interspecific associationzz important valuezz x2 correction testzz Hengyang Basinzz |
|
| 点击此处可从《勤云标准版测试》浏览原始摘要信息 |
|
点击此处可从《勤云标准版测试》下载全文 |
|
