| 小龙门林场棘皮桦种群结构分析 |
| |
| 引用本文： | 杨扬.小龙门林场棘皮桦种群结构分析[J].生物学杂志,2009,26(3):38-40. |
| |
| 作者姓名： | 杨扬 |
| |
| 作者单位： | 北京师范大学生命科学学院,北京,100875 |
| |
| 摘 要： | 调查小龙门林场棘皮桦林的种群结构,编制棘皮桦的生命表,绘制种群的存活及死亡曲线进行生存分析。通过现时不同年龄段的个体数量推测种群时间上的动态过程,结果显示小龙门林场的环境条件比较适宜棘皮桦种群的生长,良好的自然条件使其倾向于产生更具竞争力的后代,而不是大量繁殖。
|
| 关 键 词： | 棘皮桦 生命表 存活死亡曲线 |
Research in the structure of Betula dahurica families at Xiaolongmen forest farm |
| |
| YANG Yang.Research in the structure of Betula dahurica families at Xiaolongmen forest farm[J].Journal of Biology,2009,26(3):38-40. |
| |
| Authors: | YANG Yang |
| |
| Institution: | YANG Yang (College of Life Science, Beijing Normal University, Beijing 100875, China) |
| |
| Abstract: | Population structure of Betula dahurica families in Xiaolongmen forest farm was assayed. The specific life table was drawn. According to the table, the survivorship curve and death curve were analyzed. Through the number of individuals in different a- ges, the dynamics of the population was discussed. The conclusion was that Betula dahurica could subsist well in Xiaolongmen forest farm and they would normally raise the competitiveness rather than the amount of of the sampling. |
| |
| Keywords: | Betula dahuriea life table survivorship and death curve |
| 本文献已被 维普 万方数据 等数据库收录！ |
|
