摘要
根据采自天山北坡中部呼图壁河流域6个采点的树木年轮样本,研制出该流域的树木年轮年表。通过相关普查发现,树轮差值年表与春季（5—6月）平均最高气温存在显著的负相关,最高单相关系数为-0.505,且具有明确的树木生理学意义。用喀音萨依（t）,喀音萨依（t＋1）和希热克久热特（t＋1）3个树轮差值年表序列可较好地重建呼图壁河流域313 a来该时段平均最高气温变化,交叉检验表明重建结果稳定可靠。呼图壁河流域313 a来春季平均最高气温重建序列具有如下特征：①经历了7个偏暖阶段和6个偏冷阶段;②存在7～18 a、30 a明显的准周期变化;③在1886年发生过一次明显的突变。
The tree-ring chronologies were established according to samples from the Hutubi River Basin, northern slopes of Tianshan Mountains. Single correlation screen indicated that the correlations were significant between the tree-ring residual chronologies and the mean maximum temperature from May to June, and the maximum correlation coefficient was 0. 505. At the same time, the result has distinct physiological significance. With 3 tree-ring residual chronologies in Kayinsayi（ t ）, Kayinsayi（ t ＋ 1 ） and Xirekejiurete（ t ＋ 1）, the mean maximum temperature in the recent 313 years was well reconstructed, and the reconstructed equation was stable proved by crossing-test. The main results are as follows：①The reconstructed temperature series had 7 warm perature series from M cycles of 7-18 years, periods above its mean and 6 cold periods bellow its mean; ②The reconstructed temay to June in the Hutubi River Basin during the last 313 years had significant period 30 years; ③The abrupt change of temperature occurred in 1886.
出处
《中国沙漠》
CSCD
北大核心
2009年第1期162-167,共6页
Journal of Desert Research
基金
公益性行业(气象)科研专项项目(GYHY200706008
GYHY200806011)
科技基础性工作专项项目(2007FY220200)
沙漠气象基金课题(sqj2006016)
中国气象局重点实验室开放研究项目“新疆天山北坡树木年轮气候研究”共同资助
关键词
呼图壁河流域
树轮差值年表
最高气温
特征分析
Hutubi River Basin
tree-ring residual chronology
maximum temperature
characteristic analysis
