气候变暖背景下不同海拔长白落叶松对气候变化的响应

	气候变暖背景下不同海拔长白落叶松对气候变化的响应
其他题名	Response of Larix olgensis at different elevations to climate change in the context of climate warming
	赵学鹏 1; 白学平 2; 李俊霞 3; 王丽丽 4; 张先亮 5; 陆旭 6; 陈振举 7
	2019
发表期刊	生态学杂志
ISSN	1000-4890
卷号	38 期号:3 页码:637-647
摘要	To examine the radial growth responses of Larix olgensis to climate factors under climate change in the north slope of Changbai Mountain,we sampled tree cores from two sites, located at different elevations ( 900 and 1400 m a.s.l.). The tree-ring width chronologies of L. olgensis were established based on theories of dendrochronology. The relationship between L. olgensis and climate factors in two periods ( 1959~(-1)993 and 1994 - 2009) was analyzed. The results showed that: ( 1) A sudden warming occurred during 1959-2009,with a breakpoint in 1993; ( 2) The response of radial growth of L. olgensis to climate factors varied between different elevations. Tree-ring width was significantly positively correlated with mean temperature of pregrowing season ( April) and negatively correlated with precipitation of September at high elevation; while the significantly positive correlation between tree growth and the precipitation of September existed at low elevation; ( 3) With the rapid warming over the past ten years,the growth of L. olgensis showed significant variations in the response to climate factors. After warming accelerating, at high elevation,the positive correlation between tree growth and temperature of pregrowing season was significantly enhanced,and the negative correlation between tree-growth and mean temperature of the growing season as well as precipitation in September was enhanced. Radial growth of L. olgensis showed a decreasing positive response to precipitation in September and an increasing positive response to precipitation in April at low elevation; ( 4) The basal area increment ( BAI) was significantly increased at high elevation,but that at low elevation was not obvious after the accelerating warming since 1993. Therefore,the situation of accelerating warming promoted tree growth at high elevation,but did not affect it at low elevation. It can be predicted that the natural distribution range of L. olgensis will expand with continuing climate warming.
其他摘要	为研究气候变暖背景下长白山北坡长白落叶松( Larix olgensis)径向生长对气候因子的响应,采集长白山北坡两个海拔( 1400和900 m)的树芯,基于树木年代学理论建立了长白落叶松年轮宽度年表,分析了长白落叶松在两个时间段( 19591993和19942009年)与气候因子的关系.结果显示:( 1) 19592009年经历了一次突变性增温,突变年份为1993年;( 2)高海拔长白落叶松与生长季前的平均气温和平均最高温(当年4月)呈显著正相关,与当年9月降水呈显著负相关.而低海拔长白落叶松径向生长主要受当年9月降水的影响;( 3)经近十几年的快速升温,长白山落叶松生长对气候因子的响应发生了明显的变化.在突变增温前后,高海拔长白落叶松径向生长与生长季前气温的正相关性明显增强,而与生长季气温的相关性由正转负,与9月降水的负相关性增强.低海拔长白落叶松径向生长与9月降水的相关性减弱,与4月降水的相关性增强;( 4) 1993年以后的快速升温使得高海拔长白落叶松生长量( BAI)显著增加,而低海拔长白落叶松生长的增长幅度不明显.因此,突变增温促进了高海拔长白落叶松的生长,而对低海拔长白落叶松的生长没有较大的影响.可以预测,若气候持续变暖,长白山落叶松的分布范围会逐渐扩大.
关键词	气候变暖长白落叶松径向生长响应差异 climate warming Larix olgensis radial growth differential response
收录类别	CSCD
语种	中文
WOS关键词	Forestry
WOS研究方向	Science & Technology
WOS类目	FORESTRY
CSCD记录号	CSCD:6443680
引用统计	被引频次：18[CSCD] [CSCD记录]
文献类型	期刊论文
专题	任务一_子任务一循证社会科学证据集成任务一
作者单位	1.沈阳农业大学林学院树木年轮实验室/辽河平原森林生态系统定位研究站, 沈阳, 辽宁 110866, 中国 2.沈阳农业大学林学院树木年轮实验室/辽河平原森林生态系统定位研究站, 沈阳, 辽宁 110866, 中国 3.沈阳农业大学林学院树木年轮实验室/辽河平原森林生态系统定位研究站, 沈阳, 辽宁 110866, 中国 4.中国科学院地理科学与资源研究所, 北京 100101, 中国 5.沈阳农业大学林学院树木年轮实验室/辽河平原森林生态系统定位研究站, 沈阳, 辽宁 110866, 中国 6.沈阳农业大学林学院树木年轮实验室/辽河平原森林生态系统定位研究站, 沈阳, 辽宁 110866, 中国 7.沈阳农业大学林学院树木年轮实验室/辽河平原森林生态系统定位研究站, 沈阳, 辽宁 110866, 中国
推荐引用方式 GB/T 7714	赵学鹏,白学平,李俊霞,等. 气候变暖背景下不同海拔长白落叶松对气候变化的响应[J]. 生态学杂志,2019,38(3):637-647.
APA	赵学鹏.,白学平.,李俊霞.,王丽丽.,张先亮.,...&陈振举.(2019).气候变暖背景下不同海拔长白落叶松对气候变化的响应.生态学杂志,38(3),637-647.
MLA	赵学鹏,et al."气候变暖背景下不同海拔长白落叶松对气候变化的响应".生态学杂志 38.3(2019):637-647.