Knowledge Management System of Northwest Institute of Plateau Biology, CAS
| 青藏高原矮嵩草草甸种子库的初步研究 | |
| 邓自发; 周兴民; 王启基 | |
| 1997 | |
| 发表期刊 | 生态学杂志
 |
| 卷号 | 16期号:5页码:19 |
| 其他摘要 | 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. |
| 关键词 | Kobresia Humilis Meadow Seed Bank Seed Rain Species Diversity |
| 学科领域 | 植物学 |
| 收录类别 | CSCD |
| 语种 | 中文 |
| CSCD记录号 | CSCD:391838 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://210.75.249.4/handle/363003/1103 |
| 专题 | 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. |
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