1801年以来河南尧山地区油松高温变化及影响机制  被引量:15

Temperature variation and influence mechanism of Pinus tabulaeformis ring width recorded since 1801 at Yao Mountain,He′nan Province

在线阅读下载全文

作  者:杨柳 李静茹 彭剑峰[1,2] 霍嘉新 陈亮 YANG Liu;LI Jingru;PENG Jianfeng;HUO Jiaxin;CHEN Liang(College of Environment and Planning,Henan University,Kaifeng 475004,China;Key Laboratory of Geospatial Technology for the Middle and Lower Yellow River Regions(Henan University),Ministry of Education,Kaifeng 475004,China)

机构地区:[1]河南大学环境与规划学院,开封475004 [2]黄河中下游数字地理技术教育部重点实验室,开封475004

出  处:《生态学报》2021年第1期79-91,共13页Acta Ecologica Sinica

基  金:国家自然科学基金资助项目(41671042)。

摘  要:基于建立的河南尧山地区油松树轮宽度标准年表,分析了油松径向生长与该地区气温、降水等气候因子之间的关系以及气温升高前后树木生长与平均最高气温间的相关性,结果表明:4—7月平均最高气温与树轮年表的相关系数高达-0.64,是该地区油松径向生长的主要限制因子;气候变暖后树轮年表与9、10月份平均最高气温显著正相关,与2、3月降水显著正相关,与4—7月平均最高气温间的相关性较为稳定。因此,重建了尧山地区1801年来4—7月平均最高气温,其方差解释量达40%(调整自由度后为38.9%)。过去216年的高温重建历史中经历了6个较暖的时期:1801—1825,1845—1853,1876—1889,1922—1944,1957—1975,1996—2013年和5个较冷的时期:1826—1844,1854—1875,1890—1921,1945—1956,1978—1995年,其结果与过去伏牛山龙池曼地区5—7月温度重建序列具有很好的一致性。周期分析结果发现该地区4—7月平均最高气温变化存在着2—4年(ENSO周期)和35.23—48.47年的主要变化周期,小波分析发现在1920年前后气候由长周期变为短周期变化;空间相关分析显示重建的高温序列很好地代表了豫东平原地区的温度变化,同时也发现与北太平洋副热带高压850 hPa上空的温度有非常高的正相关关系,表明豫东高温的波动可能与北太平洋海气振荡有关,这一研究结果为山区森林管理及平原区农业生产提供基础服务数据。Based on the developed chronology of Pinus tabuliformis width at Yao Mountain,the relationship between radial growth and climatic factors such as temperature and precipitation as well as the correlation between tree growth and mean maximum temperature before and after temperature rise were analyzed.The results showed that mean maximum temperature in April—July,with r=-0.64(P<0.05),was the main limiting factor for the radial growth of P.tabuliformis in the region.Under the influence of climate warming,the chronology was significantly positively correlated with the mean maximum temperature in September and October and was significantly positively correlated with precipitation in February and March.The correlation with the mean maximum temperature from April to July was relatively stable.Based on this,the mean maximum temperature from April to July at the Yao Mountain was reconstructed.The variance of the reconstruction equation was explained by 40%(38.9%after adjusting for the degrees of freedom).During the past 216 years of high temperature reconstruction history,this area has experienced six warmer periods:1801—1825,1845—1853,1876—1889,1922—1944,1957—1975,and 1996—2013 and five colder periods:1826—1844,1854—1875,1890—1921,1945—1956,and 1978—1995.These results were similar to the May—July maximum temperature reconstruction at Longchiman in Funiu Mountain.The spectral analysis found that 2—4 years(ENSO cycle)and 35.23—48.47 years were the main periods of temperature change at Yao Mountain and the wavelet analysis showed that the climate changed from a long cycle to a short cycle around 1920.Spatial correlation analysis indicated that the reconstructed maximum temperature was representative of the temperature variation in the eastern Henan plain area and a high positive correlation with temperature over 850 hPa of the North Pacific subtropical high showed that the maximum temperature fluctuations in the eastern Henan might be related to the North Pacific sea-atmosphere oscillation.These

关 键 词:尧山 油松 树木年轮 气候重建 平均最高气温 

分 类 号:S791.254[农业科学—林木遗传育种]

 

参考文献:

正在载入数据...

 

二级参考文献:

正在载入数据...

 

耦合文献:

正在载入数据...

 

引证文献:

正在载入数据...

 

二级引证文献:

正在载入数据...

 

同被引文献:

正在载入数据...

 

相关期刊文献:

正在载入数据...

相关的主题
相关的作者对象
相关的机构对象