| 落叶松管胞形态与气候变化关系的实证分析 |
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| 引用本文： | 赵西平,郭明辉. 落叶松管胞形态与气候变化关系的实证分析[J]. 东北林业大学学报, 2009, 37(7) |
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| 作者姓名： | 赵西平 郭明辉 |
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| 作者单位： | 1. 河南科技大学,洛阳,471003
2. 生物质材料科学与技术教育部重点实验室,东北林业大学 |
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| 基金项目： | 国家自然科学基金项目 |
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| 摘 要： | 为了对落叶松营林措施的正确设计和科学实施提供依据,运用协整分析法分析、探讨了落叶松管胞形态特征与气候因素之间的有机联系.研究结果表明:落叶松管胞形态特征与气候因素之间存在长期均衡的协整关系和短期动态调整机制,除了早材管胞壁厚度外,其它指标与气候因素之间的协整关系均达到显著水平.1973-2003年全球气候变暖引起的2月和3月平均气温的升高对于落叶松的管胞长度增加有显著影响,误差修正模型和格兰杰检验显示:2月气温短期内对早材管胞长度增加的影响存在4a的滞后期,3月气温短期内对晚材管胞长度增加的影响存在7 a的滞后期.2月和3月的日照时间减少,7月份的日照时间增加,有利于增加早材管胞直径,却不利于增加晚材管胞直径.7月份的日照时间增加也有利于增加晚材管胞壁厚,但是日照时间对管胞形态特征的滞后影响没有达到显著水平.降水量与管胞形态特征之间的协整关系也没有达到显著水平.
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| 关 键 词： | 人工林 落叶松 管胞形态 气候 协整 |
Relationship between Tracheid Morphology of Larix gmelinii and Climate Change |
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| Zhao Xiping,Guo Minghui. Relationship between Tracheid Morphology of Larix gmelinii and Climate Change[J]. Journal of Northeast Forestry University, 2009, 37(7) |
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| Authors: | Zhao Xiping Guo Minghui |
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| Affiliation: | Zhao Xiping(College of Forestry,Henan University of Science , Technology,Luoyang 471003,P. R. China),Guo Minghui(Key Laboratory of Bio-based Material Science , Technology,Ministry of Education(Northeast Forestry University) |
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| Abstract: | A study was conducted to discuss the relationship between wood tracheid morphology and temperature,precipitation,and sunshine time aiming to cultivate and manage Larch plantation reasonably using Larix gmelinii plantation as research object. A significant long-term equilibrium relation and a short-term dynamic adjustment were found between climate factors and tracheid morphology except tracheid wall thickness of earlywood. An increase in average air temperature in February and March during 1973 and 2003 had... |
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| Keywords: | Plantations Larix gmelinii Tracheid morphology Climate Cointegration |
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