干旱区生态环境知识资源中心(Arid): 腾格里沙漠南缘青海云杉( Picea crassifolia)和油松( Pinus tabulaeformis)年轮记录的气候变化

Arid

	腾格里沙漠南缘青海云杉( Picea crassifolia)和油松( Pinus tabulaeformis)年轮记录的气候变化
其他题名	Radial growth climatic response characteristics and tree ring climate records of conifer species at south margin of Tengger Desert,China
	韩超 1; 肖生春 2; 丁爱军 1; 滕泽宇 1
来源期刊	中国沙漠
ISSN	1000-694X
出版年	2020
卷号	40 期号:2 页码:50-58
中文摘要	基于树木年轮学理论与方法,探讨了腾格里沙漠南缘昌岭山青海云杉( Picea crassifolia)和油松( Pinus tabulaeformis)径向生长的气候响应特征及其记录的1850s以来气候干湿变化。结果表明:青海云杉和油松均表现出与区域生长季及前期干旱指数的极显著相关性,但后者更易受到气候变化(尤其降水)的影响;二者均记录了研究区一致的干湿变化,且均存在4 a和24 a的变化周期;在年代际尺度上,两者年表均记录了18811885年、1890s 1900s初、1920s中至1930s初和1990s末至2000s初的干旱阶段和18641876年、1935年左右、19531956年3个湿润期。综合小波方差周期分析及区域气候增温趋势,我们推测:昌岭山地区两树种在未来十余年可能呈衰退态势,且分布于阳坡的油松受气候变化影响更大。树轮气候记录反映了腾格里沙漠南缘近170 a区域气候干湿变化,可为近百年来区域环境演变和腾格里沙漠边缘区荒漠化防治提供决策参考。
英文摘要	Based on the theory and method of dendrochronology,radial growth-climatic response characteristics and tree ring climate records of conifer species ( Pinus tabulaeformis and Picea crassifolia) were discussed in the Changling Mountain,which lies at south margin of the Tengger Desert.The results showed that both species showed significant correlation with PDSI in the prior and growth season,but Pinus tabulaeformis was more susceptible to climate change,especially precipitation. Both chronologies have 4-year and 24-year cycles,which record consistent wet and dry changes in the study area. On the interdecadal scale,the chronology of both species indicates four major dry periods ( 1881-1885,1890-1900,mid-1920s-early 1930s and late 1990s-early 2000s) and three major wet periods ( 1864-1876,around 1935,1953-1956). Integrated wavelet analysis and regional climate warming trend,we predicted that the growth of individual plants and the development of communities of two tree species will be adversely affected,especially for Pinus tabulaeformis on the sunny slope. The tree-ring climate record reflects the regional climate change for nearly 170 years at south margin of the Tengger Desert,which provides a reference for understanding the environment evolution of the Tengger Desert in the past 100 years and desertification controlling in the desert marginal zone.
中文关键词	树木年轮 ; 气候响应特征 ; 气候变化 ; 沙漠化
英文关键词	PDSI tree ring climate response characteristics climate change PDSI desertification
语种	中文
收录类别	CSCD
WOS类目	METEOROLOGY ATMOSPHERIC SCIENCES
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:6691919
来源机构	中国科学院西北生态环境资源研究院
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/318341
作者单位	1.中国科学院西北生态环境资源研究院;;中国科学院大学, 中国科学院内陆河流域生态水文重点实验室;;, 兰州;;, 甘肃;;北京 730000;;100049, 中国; 2.中国科学院西北生态环境资源研究院, 中国科学院内陆河流域生态水文重点实验室, 兰州, 甘肃 730000, 中国
推荐引用方式 GB/T 7714	韩超,肖生春,丁爱军,等. 腾格里沙漠南缘青海云杉( Picea crassifolia)和油松( Pinus tabulaeformis)年轮记录的气候变化[J]. 中国科学院西北生态环境资源研究院,2020,40(2):50-58.
APA	韩超,肖生春,丁爱军,&滕泽宇.(2020).腾格里沙漠南缘青海云杉( Picea crassifolia)和油松( Pinus tabulaeformis)年轮记录的气候变化.中国沙漠,40(2),50-58.
MLA	韩超,et al."腾格里沙漠南缘青海云杉( Picea crassifolia)和油松( Pinus tabulaeformis)年轮记录的气候变化".中国沙漠 40.2(2020):50-58.