| 四川稻城海子山方枝柏树轮宽度与气候因子的响应关系研究 |
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| 引用本文： | 邹莉丽,徐姗姗,郑超刚,李生芮,连婉婧,商志远,张志刚,孔兴功,赵志军.四川稻城海子山方枝柏树轮宽度与气候因子的响应关系研究[J].冰川冻土,2021,43(3):917-927. |
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| 作者姓名： | 邹莉丽 徐姗姗 郑超刚 李生芮 连婉婧 商志远 张志刚 孔兴功 赵志军 |
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| 作者单位： | 南京师范大学地理科学学院虚拟地理环境教育部重点实验室,江苏南京210023 |
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| 基金项目： | 中国科学院战略性先导科技专项（A类）“气候变化影响下亚洲水塔变化及其影响与绿色发展方案”(XDA20100300);国家自然科学基金项目(41971009) |
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| 摘 要： | 对四川稻城县海子山高原上的方枝柏进行树芯采集，经交叉定年后建立林线上限位置的方枝柏树轮宽度年表。标准化年表与气象资料的响应分析结果揭示了该地区树木生长主要受当年生长季前期温度条件的控制。轮宽指数与前一年9月到当年2月的平均气温呈显著正相关（R=0.56，P<0.01）。由此重建了该地区1850—2019年这170 a的前一年9月到当年2月平均气温的变化，转换函数方差解释量31.7%。重建结果与邻近地区树轮记录的温度变化具有较好的一致性。重建序列显示工业革命以来，研究区经历较冷的时期有：1870—1890年和1960—1980年；较暖的时期有：1884—1892年、1919—1925年、1940—1960年以及1980—2019年。1940—1960年是20世纪最暖的时期，20世纪60年代后温度呈现下降趋势，1980年开始气温保持持续升高，2010年之后气温有小幅下降。重建气温序列与太阳黑子数变化和北大西洋多年代际涛动AMO有较强的响应，揭示了太阳活动、海温等因子可能对该区温度变化产生重要影响。
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| 关 键 词： | 树木年轮 温度重建 林线 方枝柏 稻城 |
| 收稿时间： | 2021-05-21 |
| 修稿时间： | 2021-06-11 |
Relationship between the tree ring width of Sabina saltuaria and climate factors in Haizi Mountain,Daocheng,Sichuan |
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| ZOU Lili,XU Shanshan,ZHENG Chaogang,LI Shengrui,LIAN Wanjing,SHANG Zhiyuan,ZHANG Zhigang,KONG Xinggong,ZHAO Zhijun.Relationship between the tree ring width of Sabina saltuaria and climate factors in Haizi Mountain,Daocheng,Sichuan[J].Journal of Glaciology and Geocryology,2021,43(3):917-927. |
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| Authors: | ZOU Lili XU Shanshan ZHENG Chaogang LI Shengrui LIAN Wanjing SHANG Zhiyuan ZHANG Zhigang KONG Xinggong ZHAO Zhijun |
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| Institution: | Key Laboratory for Virtual Geographic Environment，Ministry of Education； School of Geography，Nanjing Normal University，Nanjing 210023，China |
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| Abstract: | Tree cores of Sabina saltuaria individuals in Haizi Mountain， Daocheng， Sichuan province were obtained and cross-dated. Consequently， standard ring width （STD） chronology in the upper tree line of Sabina saltuaria were established by using ARSTAN program. It was indicated that tree growths in this area were restricted by the temperature of early growing season. The correlation between mean temperature from last September to current February （MTp9-c2） and the STD chronology was statistically significant （R=0.56， P<0.01）， and the correlation was consistent with the biological characteristics of tree growth. Thereby， the 170-year （MTp9-c2） variation in this area from 1850—2019 was reconstructed and the percentage of explained variance of transform function was 31.7%. The reconstruction was closely matched with the temperature variation recorded by neighboring tree ring records. The reconstruction sequence showed that the colder periods experienced in this area were 1870—1890 and 1960—1980 respectively； the warmer periods were 1884—1892， 1680—1700， 1919—1925， 1940—1960 and 1980—2019. The period of 1940—1960 was the warmest period in the 20th century and the temperature has been declined since 1960s. Afterwards， the temperature kept rising from 1980 and decreased mildly after 2010. The reconstructed temperature series was coinciding with the sunspot’s number and the AMO index （Atlantic Multidecadal Oscillation）， which revealed that some factors such as solar activity and sea surface temperature might exert an important influence on local temperature change. |
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| Keywords: | tree ring temperature reconstruction tree line Sabina saltuaria Daocheng |
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