| 不同盐度梯度下互花米草的分布及其无性扩散 |
| |
| 引用本文： | 陈绿青.不同盐度梯度下互花米草的分布及其无性扩散[J].青海农林科技,2013(3):19-21,87. |
| |
| 作者姓名： | 陈绿青 |
| |
| 作者单位： | 云霄县林业局,福建云霄,353300 |
| |
| 摘 要： | 本研究调查了外来入侵植物互花米草在漳江口红树林自然保护区的分布状况,分析了不同生长阶段互花米草的无性扩散能力。结果表明:漳江口红树林自然保护区沿江不同盐度梯度下都有互花米草的生长分布,相比红树植物,互花米草具有较宽的生态幅度,盐度适应范围也较广(2‰-30‰)。互花米草主要以无性繁殖的方式扩散,苗期是快速扩散时期,在互花米草与红树植物分布集中区,互花米草在苗期的扩散距离最大,可达到238±20cm,适当的盐度(15‰左右)可以促进互花米草的繁殖扩散,25‰以上的高盐度对互花米草的繁殖扩散则有明显的抑制作用。
|
| 关 键 词： | 漳江口 互花米草 分布 扩散 |
Diffusion and Distribution of Spartina alterniflora Clones under Different Salinity Gradient |
| |
| CHEN Lv-qing.Diffusion and Distribution of Spartina alterniflora Clones under Different Salinity Gradient[J].Science and Technology of Qinghai Agriculture and Forestry,2013(3):19-21,87. |
| |
| Authors: | CHEN Lv-qing |
| |
| Institution: | CHEN Lv-qing ( Forest Bureau of Yunxiao County, Yunxiao Fujian,353300, China) |
| |
| Abstract: | This study investigated the distribution and the diffusion of the invasive plant Spartina alterniflora along the Zhangjiang River in Fujian. The results showed that S. alterniflora can grow and propagate along the river under different salinity gradients in Zhangjiang Estuary, compared to mangrove species, it has a wider ecological amplitude, as for the wider scope to adapt the salinity （2‰ -30‰）. S. alterniflora ates by asexual reproduction. The seeding stage spreads rapidly, at the seeding stage S. alterniflora prolifercan out- ward diffusion to 238 ± 20 cm,The appropriate salinity （about 15‰） stimulated the proliferation of the S. alterniflora while higer salinity （above 25‰） inhibited its proliferation. |
| |
| Keywords: | Zhangjiang Estuary Spartina alterniflora Distribution Diffusion |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
