树轮记录的贺兰山北部近208年5—7月温度变化  

May-July Temperature Variability Since 1801 Inferred from Tree Rings of Pinus tabulaeformis of Helan Mountains in China

作　　者：陈峰[1] 袁玉江[1] 魏文寿[1] 张同文[1] 张瑞波[1] 喻树龙[1] 范子昂[1] 李杨[1] 尚华明[1] 

机构地区：[1]中国气象局乌鲁木齐沙漠气象研究所中国气象局树木年轮理化研究重点实验室新疆维吾尔自治区树木年轮生态重点实验室,乌鲁木齐830002

出　　处：《应用气象学报》2011年第4期463-471,共9页Journal of Applied Meteorological Science

基　　金：科技基础性工作专项(2007FY220200);公益性行业(气象)科研专项(GYHY200806011);国家自然科学基金项目(40975056;41071072;40890051);中国沙漠气象科学研究基金(SQJ2010011);中央级公益性科研院所基本科研业务费项目(IDM200801)

摘　　要：利用2008年10月采自贺兰山北部的油松树轮样本建立了贺兰山北部区域树轮密度年表。相关分析表明:贺兰山北部的树轮早材平均密度与银川气象站5 7月平均最高温度具有较好的正相关关系,相关系数为0.67。用贺兰山北部的区域早材平均密度差值年表重建贺兰山北部1801—2008年的5—7月平均最高温度,58年(19512008年)重建值对实测值的解释方差为44.9%;2008年的贺兰山北部温度重建序列平均值为27.40℃。在最近20年,贺兰山树轮早材平均密度出现了明显的上升趋势,通过比对贺兰山北部重建序列的低温年份和全球火山爆发数据,发现在大规模火山爆发后的28个偏冷年温度平均值为26.90℃,较重建序列平均值下降0.50℃。多窗谱分析表明:贺兰山北部温度重建序列具有120年、8.1年、6.5年、3.2年、2.9年、2.1年的准周期变化。贺兰山北部早材平均密度与甘肃石门山、昌灵山油松的早材平均密度有良好的相关性。Ninety newly measured tree-ring width and density series from Chinese Pines （Pinus tabulaeformis） from four sites in Helan Mountains are compiled. To remove non-climatic, age-related growth trends from the raw tree-ring width and density measurement series, while allowing lower frequency information above the mean segment length to be preserved, the program ARSTAN is used to detrend the ring width and density sequences using hugershoff growth curve and to average the standardized ring width and density se- quences into the master chronologies. The correlating coefficient between earlywood density record and May-July maximum temperature of Yinchuan reaches up to 0. 67 during 1951-2008. The May-July maximum temperature reconstruction （1801-2008） uses the earlywood density chronologies from the region. The explained variance of model is 44.9% （F=45. 625, P〈0. 0001）. The mean temperature over the 1801-2008 periods is estimated to be 27.4 ℃. The reconstructed temperature has 3 warm periods, ineluding 1801--1812, 1940-1953, and 1994-2008. The rising of temperature series in the 2000s is the fastest and indicates that temperature in the 2000s has been warmer than any other period since 1801. The reconstructed temperature during the last 208a has significant period cycles of 120 years （95%）, 8.1 years （95%）, 6.5 years （90%）, 3.2 years （95%）, 2.9 years （95%）, and 2.1 years （99%）. Many low density values are forced by volcanic eruptions. Comparison shows volcanic eruptions have no systematic relationship with this reconstruction data, but they are correlated with the regional characteristics of the temperature and forcing data. Detailed analysis, however, suggests a cooling of several years following primarily tropical events with a volcanic eruption index （VEI）. Examples include Tambora in Indonesia （1815）, Cosiguina in Nicaragua（1935）, Chikurachki in Kurilels（1853）, Sheveluch in Kamchatka（1854）, Krakatu in Java（1883）, Okataina in New Zealand（1886）, Santa

关 键 词：贺兰山 树木年轮 油松 早材平均密度 5-7月温度 

分 类 号：P468.021[天文地球—大气科学及气象学]