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一、前言树木年轮是一个地区气候综合因子的反映,气候适宜年轮生长宽,反之年轮生长窄。国内外根据树木年轮研究一个地区的气候已有许多研究成果,总结出有关天气气候变化的若干种周期,新疆地处祖国大西北,气象观测资料年代短,为开发大西北做准备,弄清历史气候变化规律,寻找干旱冻害的变化特点及未来演变趋势是当务之急。本文根据多年来在天山林区调查年轮取样结果,结合当地气象资料试用波谱分析法
I. Introduction The tree ring is a reflection of the comprehensive climatic factors in a region. Its climate is suitable for growth of annual rings and narrow ring growth on the contrary. At home and abroad, according to the tree ring research climate in a region has many research results, summed up a number of cycles of weather and climate change, Xinjiang is located in the northwestern motherland, meteorological observation of a short time to prepare for the development of the Greater Northwest, clarify The law of history and climate change, looking for the changing characteristics of drought frost damage and the trend of future evolution are the top priorities. In this paper, according to years of forest sampling Tianshan forest sampling results, combined with the local meteorological data to try spectral analysis