| 红松木材密度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,郭平平. 红松木材密度与气候变化关系的实证分析[J]. 辽宁林业科技, 2009, 0(4): 6-8 |
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| 作者姓名： | 赵西平 郭明辉 郭平平 |
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| 作者单位： | 1. 河南科技大学,林学院,河南,洛阳,471003
2. 东北林业大学,生物质材料科学与技术教育部重点实验室,黑龙江,哈尔滨,150040 |
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| 摘 要： | 运用协整分析对我国东北地区人工林红松木材密度与气候变化的关系进行了研究。结果表明，红松木材密度与气候因素之间存在长期均衡的协整关系和显著的短期动态调整机制。在1973～1997年，2、3月平均日照时间的延长有利于提高早材密度，而7月份的日照时间延长却不利于提高早材密度；2月气温升高，不利于提高整个生长轮密度平均值；误差修正模型和格兰杰检验证实，2月气温短期内对生长轮密度的影响存在2～3年的滞后期。人工林红松的优质培育需要充分考虑气候变化的影响。
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| 关 键 词： | 人工林 红松 木材密度 气候变化 |
Empirical analysis on relationships between wood density of Pinus koraiensis and climate change |
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| ZHAO Xi-ping,GUO Ming-hui,GUO Ping-ping. Empirical analysis on relationships between wood density of Pinus koraiensis and climate change[J]. Liaoning Forestry Science and Technology, 2009, 0(4): 6-8 |
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| Authors: | ZHAO Xi-ping GUO Ming-hui GUO Ping-ping |
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| Affiliation: | 1.College of Forestry;Henan University of Science and Technology;Luoyang 471003;China;2.Key Laboratory of Bio-based Material Science and technology under the Ministry of Education;Northeast Forestry University;Harbin 150040;China |
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| Abstract: | The relationships between wood density of Pinus koraiensis plantations in northeastern China and climate change were studied by the cointegration analysis.The results showed that: there were long-term equilibrium cointegration relationship and short-term dynamic adjustment mechanism between climate factors and wood density.Average sunshine time in February and March were increased from 1973 to 1979 and sunshine time of July were decreased which were beneficial to improve early wood density.Air temperature i... |
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| Keywords: | plantation Pinus koraiensis wood density climate cointegration |
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