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| 岷江上游辐射松生长过程及其与气候变化的关系 | |
| 引用本文： | 朱鹏,包维楷,胡庭兴. 岷江上游辐射松生长过程及其与气候变化的关系[J]. 四川林业科技, 2010, 31(2): 4-8 |
| 作者姓名： | 朱鹏 包维楷 胡庭兴 |
| 作者单位： | 1. 中国科学院成都生物研究所生态恢复重点实验室,四川,成都,610041;四川农业大学林学园艺学院,四川,雅安,625014 2. 中国科学院成都生物研究所生态恢复重点实验室,四川,成都,610041 3. 四川农业大学林学园艺学院,四川,雅安,625014 |
| 基金项目： | 中国科学院知识创新工程项目 |
| 摘 要： | 应用树干解析方法,剖析了15年前引种于中国科学院茂县山地生态系统定位站的辐射松(Pinus radiataD.Von)的个体生物量以及地径和树高生长过程,并分析了地径与站区气候的关系。结果表明,辐射松地径去皮平均生长量和树高平均生长量可达10.309 mm和0.72 m,显示了较好的速生性;径向和树高连年生长过程均呈现多峰态曲线分布,平均生长过程在个别年份有轻微波动,但总体呈稳态上升趋势;断梢促进了辐射松径向生长,明显增大枝叶的生物量比例,促进了单株生物量的增加;影响辐射松地径生长气候因素主要是温度,其中尤以7月均温以及寒冷指数影响显著。综合分析发现,引种于岷江上游干旱山地的辐射松早期(15年前)速生性强,但低温是关键制约的气候因素。 |
| 关 键 词： | 辐射松 干旱河谷 树干解析 生物量 年轮指数 |
The Growth Dynamics of Pinus radiata Trees and Their Relationship with Climatic Variations in the Upper Minjiang River |
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| ZHU Peng,BAO Wei-kai,HU Ting-xing. The Growth Dynamics of Pinus radiata Trees and Their Relationship with Climatic Variations in the Upper Minjiang River[J]. Journal of Sichuan Forestry Science and Technology, 2010, 31(2): 4-8 | |
| Authors: | ZHU Peng BAO Wei-kai HU Ting-xing |
| Affiliation: | ZHU Peng1,2 BAO Wei-kai1 HU Ting-xing2(1.Chengdu institute of biology,the Chinese Academy of Sciences,Chengdu 610041,Sichuan,2.College of Forestry , Horticulture,Sichuan Agricultural University,Ya'an 625014,Sichuan) |
| Abstract: | A typical exotic tree,Pinus radiata D.Don,was firstly introduced to the arid valley of the upper Minjiang River in 1987.But the growth dynamics of the exotic tree and influence of local climate were investigated.Three 15 year-old Pinus radiata D.Don trees from the arid valley of the upper Minjiang River were selected to explore the growth process in stem basal diameter and tree height and the relationships between climate variables and diameter across the growth process were checked.The results have shown t... |
| Keywords: | Pinus radiata D.Don Arid valley Stem analysis Biomass Tree-ring index |
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