干旱区生态环境知识资源中心(Arid): 树木年轮记录的辽河平原南部240年以来10~6月的降水变化

Arid

	树木年轮记录的辽河平原南部240年以来10~6月的降水变化
其他题名	A TREE-RING RECORDED OCTOBER-JUNE PRECIPITATION IN SOUTHERN LIAOHE RIVER PLAIN DURING THE PAST 240 YEARS
	陈振举; 白学平; 李俊霞; 张先亮; 李露露; 常永兴
来源期刊	第四纪研究
ISSN	1001-7410
出版年	2015
卷号	35 期号:5 页码:1165-1174
中文摘要	利用油松(Pinus tabulaeformis)的树木年轮宽度年表,在相对湿润的辽河平原南部,重建了该地区1774年以来10~6月的降水变化。重建方程可以解释该地区实际降水量变化的39.9%。重建结果表明,在1774~2010年的过去约240年里,研究区经历了11个相对湿润期(1774~1795年、1809~1810年、1822~1823年、1835~1850年、1867~1874年、1889~1894年、1907~1914年、1931~1956年、1973~1976年、1985~1991年、2006~2010年)和10个相对干旱期(1796~1808年、1811~1821年、1824~1834年、1851~1866年、1875~1888年、1895~1906年、1915~1930年、1957~1972年、1977~1984年、1992~2005年),其中最湿润年份是1788年,最干旱年份是1859年。该地区降水以高频变化为主,存在准2.0~2.2年、2.4年,3.1~3.2年和3.7-3.8年的显著周期(p<0.05),其中准2.1年和准2.4年的周期达到极显著水平(P<0.01)。重建的降水序列还存在50~70年左右的准周期。研究区10~6月的降水受东亚季风的影响,东亚冬季风强或夏季风弱,降水量均少,东亚冬季风弱或夏季风强,降水量则偏多。
英文摘要	The study area is in the southern part of Liaohe-River plain,which has a temperate continental monsoon climate : it is cold and dry in winter, and warm and wet in summer. According to the technology of dendrochronology, a total of 233 cores (1 to 3 cores per tree) were taken from 126 Pinus tabulaeformis trees from two sites: Qianshan (41°11’23"N, 123°08’01"E; 520m a.s.l.; 70 trees/136 cores), which belongs to semi-humid region with exuberant vegetation), and Lushan (41°36’35〃N, 121°41’42"E; 415m a.s.l. ; 56 trees/97 cores) is located at a semi-arid area with less vegetation as compared to Qianshan. The crossdating was checked using COFECHA after dried, mounted, surface sanded, corssdated and ring width measured (with a precision of 0.01mm) process. Using the program ARSTAN, three kinds of chronologies (Standard chronology, STD,Residual chronology, RES, and ARSTAN chronology, ARS) of two sites were developed respectively. The regional climate data developed by using the arithmetical average of climatic data from 9 meteorological stations record the monthly mean temperature and precipitation near the sampling sites. Correlation analysis shows that the radial growth from two sites negatively correlate to the spring and summer temperatures. Compared to the temperature, precipitation has more significant effects on the pine’s radial growth. Specifically, tree ring from Qianshan has positive correlations with precipitation in February, May (p<0. 05),and in April (P < 0. 01). Tree ring from Lushan positively correlated to the precipitation in previous September and current February, May and July (p<0. 05),especially in current September (p<0. 01). The October-June precipitation since 1774 was reconstructed using Chinese pine tree rings to explore regional moisture variations in southern Liaohe river plain. The reconstruction can explain 39. 9% of the total variance of actual records. The reconstruction shows eleven persistent wet periods : 1774 ~1795, 1809 ~1810, 1822 ~ 1823, 1835 ~1850,1867~1874,1889 ~ 1894,1907 ~1914,1931 ~1956, 1973 ~1976,1985 ~ 1991,and 2006 ~ 2010,and ten persistent dry periods: 1796~1808, 1811 ~1821, 1824 ~1834,1851 ~ 1866, 1875 ~1888,1895 ~ 1906, 1915 ~1930,1957 ~1972, 1977 ~ 1984, and 1992 ~ 2005,during the past 240 years. The wettest year is 1788, and the driest year is 1859. The variation of the reconstructed precipitation is mainly at high frequency level, and its cycles at ca.2. 0~2. 2-year, 2. 4-year, 3. 1 ~3. 2-year, and 3. 7 ~3. 8-year are significant (p<0. 05), of which ca.2. 1-year and 2. 4-year reach a extremely significant level (P< 0. 01). Also, the reconstruction has ca.50 ~70-year cycles (p<0. 05). The October-June precipitation is influenced by the East Asian monsoon. The strong East Asian winter monsoon or the weak East Asian summer monsoon indicates less regional precipitation, and the weak East Asian winter monsoon or the strong East Asian summer monsoon suggests more regional precipitation.
中文关键词	油松 ; 树木年轮 ; 气候变化 ; 降水重建 ; 东亚季风
英文关键词	Chinese pine tree ring climate change precipitation reconstruction East Asian monsoon
语种	中文
国家	中国
收录类别	CSCD
WOS类目	METEOROLOGY ATMOSPHERIC SCIENCES ; GEOLOGY
WOS研究方向	Meteorology & Atmospheric Sciences ; Geology
CSCD记录号	CSCD:5495332
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/232565
作者单位	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	陈振举,白学平,李俊霞,等. 树木年轮记录的辽河平原南部240年以来10~6月的降水变化[J],2015,35(5):1165-1174.
APA	陈振举,白学平,李俊霞,张先亮,李露露,&常永兴.(2015).树木年轮记录的辽河平原南部240年以来10~6月的降水变化.第四纪研究,35(5),1165-1174.
MLA	陈振举,et al."树木年轮记录的辽河平原南部240年以来10~6月的降水变化".第四纪研究 35.5(2015):1165-1174.