| 内蒙古东南地区落叶松晚材蓝光强度对气候因子的响应 |
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| 引用本文： | 陈平,曹新光,白毛伟,周非飞,董志鹏,郑壮鹏,方克艳.内蒙古东南地区落叶松晚材蓝光强度对气候因子的响应[J].亚热带资源与环境学报,2021(1):9-15. |
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| 作者姓名： | 陈平 曹新光 白毛伟 周非飞 董志鹏 郑壮鹏 方克艳 |
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| 作者单位： | 福建师范大学地理科学学院;福建师范大学湿润亚热带山地生态国家重点实验室培育基地;黄冈师范学院 |
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| 基金项目： | 国家自然科学基金项目(41971022、41822101);国家外国专家局项目(GS20190157002);万人计划青年拔尖人才项目;福建省青年拔尖人才项目和高级别培育项目(黄冈师范学院,2018)。 |
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| 摘 要： | 以内蒙古东南部白音罕山落叶松样芯为研究对象,建立研究区124年(1895—2018年)树木年轮晚材蓝光强度差值年表。通过选取年表(1895—1998年)与气象因子的响应分析发现:落叶松晚材蓝光强度年表与6—8月的温度(r=0.42,P<0.01)存在显著的正相关,与6—8月的降水(r=-0.39,P<0.05)和7—10月的SPEI(r=-0.55,P<0.01)存在显著的负相关。经过一阶差分检验,年表与气象要素的相关性仍然稳定,说明研究区树木生长季的温度和水分均是限制树木木质素积累的因素。综合相关分析、滑动相关分析以及空间相关结果表明,落叶松晚材蓝光强度具有进行过去夏季温度变化重建的潜力。
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| 关 键 词： | 落叶松 晚材蓝光强度 气候响应 |
Responses of Latewood Blue Intensity of Larix gmelinii to Climate Factors in Southeastern Inner Mongolia |
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| CHEN Ping,CAO Xinguang,BAI Maowei,ZHOU Feifei,DONG Zhipeng,ZHENG Zhuangpeng,FANG Keyan.Responses of Latewood Blue Intensity of Larix gmelinii to Climate Factors in Southeastern Inner Mongolia[J].Journal of Subtropical Resources and Environment,2021(1):9-15. |
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| Authors: | CHEN Ping CAO Xinguang BAI Maowei ZHOU Feifei DONG Zhipeng ZHENG Zhuangpeng FANG Keyan |
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| Institution: | (School of Geographical Sciences,Fujian Normal University,Fuzhou 350007,China;State Key Laboratory for Subtropical Mountain Ecology(Ministry of Sciences and Technology and Fujian Province Funded),Fujian Normal University,Fuzhou 350007,China;School of Geography and Tourism,Huanggang Normal University,Huanggang 438000,Hubei,China) |
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| Abstract: | A 124 years latewood blue intensity chronology(1895—2018)was established by using the tree-ring cores of Larix gmelinii in Baiyinhan Mountain,southeast Inner Mongolia.Through analysis of the response patterns between the selected chronology and climatic factors,it was found that the tree-ring latewood blue intensity was significantly positively correlated with temperature from June to August(r=0.42,P<0.01),was significantly negatively correlated with precipitation from June to August(r=-0.39,P<0.05)and SPEI from July to October(r=-0.55,P<0.01).After the first order difference test,the correlation between chronology and climatic factors is still stable,which indicates that the temperature and moisture of tree growth season in the study area are the factors limiting the accumulation of lignin in trees.Combination of the results of correlation analysis,moving correlation analysis and spatial correlation analysis shows that the latewood blue intensity chronology of Larix gmelinii has the potential as an indicator of past summer temperature change. |
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| Keywords: | Larix gmelinii latewood blue intensity climate responses |
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