青藏高原矮嵩草草甸种子库的初步研究
文献类型：期刊论文
| 作者 | 邓自发 ; 周兴民 ; 王启基 |
| 刊名 | 生态学杂志
 |
| 出版日期 | 1997 |
| 卷号 | 16期号:5页码:19 |
| 关键词 | kobresia humilis meadow seed bank seed rain species diversity |
| 合作状况 | 国内 |
| 中文摘要 | The seed bank of Kobresia humilis meadow in Qing- Zang Plateau was preliminaryly studied and the relationships among seed bank , seed rain and above-ground vegetation were compared and analysed.The results showed that there were 23 species in the seed bank in both of green up and withering stage. In species composition of the seed bank ,Ranunculaceae and Leguminosae were dominant ,while the percentage of Cyperaceae and Gramineae were lower. The percentage of K. humilis seeds was relatively lower with 0. 97 % in green up stage and 1. 97 % in withering stage. The species composition of the seed bank correlated with that of the seed rain ( r = 0. 7505 , P < 0. 01) ,and there were 18 common species which was 78. 3 %of species of the seed bank. Only 41. 81 %of above-ground vegetation species presented in the seed bank. The seed numbers of the dominant plant species in vegetation were smaller , with lower percentage in the seed bank. Therefore , the dominant vegetation of K. humilis et al. mainly depended on vegetative reproduction to maintain and strengthen. From vegetation to the seed bank in green up stage ,the species diversity decreased by 9. 94 %. It implied that the seed bank was the source of vegetation regeneration , but also a mechanism of preserving species diversity of the plants. |
| 学科主题 | 植物学 |
| 收录类别 | CSCD |
| 语种 | 中文 |
| CSCD记录号 | CSCD:391838 |
| 公开日期 | 2009-11-30 |
| 源URL | [http://ir.nwipb.ac.cn/handle/363003/1103]  |
| 专题 | 西北高原生物研究所_中国科学院西北高原生物研究所 |
| 推荐引用方式 GB/T 7714 | 邓自发,周兴民,王启基. 青藏高原矮嵩草草甸种子库的初步研究[J]. 生态学杂志,1997,16(5):19. |
| APA | 邓自发,周兴民,&王启基.(1997).青藏高原矮嵩草草甸种子库的初步研究.生态学杂志,16(5),19. |
| MLA | 邓自发,et al."青藏高原矮嵩草草甸种子库的初步研究".生态学杂志 16.5(1997):19. |
入库方式： OAI收割
来源：西北高原生物研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。