为了在 Xinjiang,最大的密度(MXD ) 的树戒指年表和树戒指宽度(TRW ) 的 Yili 学习历史的温度变化,与 Schrenk 云杉被建立(Picea schrenkiana Fisch。et Mey ) 从六个地点收集了分析对气候的反应的特征和能力变化。结果建议从地点回答了到气候的不同采样的 Schrenk 云杉的 MXD 年表变化很好并且断然在学习区域从 4 月与吝啬的最大的温度和吝啬的温度被相关到 8 月。从 4 月的吝啬的最大的温度异例到 8 月,从 1848 ~ 2000 跨越年,被被逐步的回归选择的三张 MXD 年表重建。重建的功能是马厩并且解释了 56.2% 变化。重建的结果在 Yili 山谷从 1950 年代的开始在春天和夏天显示了 153 年的冷跨度到 1970 年代的开始。没有强烈增加的趋势在这个重建的时期期间从 4 月在吝啬的最大的温度异例被检测到 8 月。
To study the historical temperature variation in Yili of Xinjiang, the tree-ring chronologies of maximum density (MXD) and tree-ring width (TRW) were established with the Schrenk Spruce (Picea schrenkiana Fisch. et Mey) collected from six sites to analyze the characteristics and ability of response to climate change. The results suggest that the MXD chronology of the Schrenk Spruce from different sampling sites responded to climate change well and were positively correlated with the mean maximum temperature and the mean temperature from April to August in the study area. The mean maximum temperature anomaly from April to August, spanning the years from 1848 to 2000, was reconstructed by three MXD chronologies which were selected by stepwise regression. The reconstructed function was stable and explained 56.2% of the variance. The reconstructed results indicated a cold span of 153 years in spring and summer from the beginning of the 1950s to the beginning of the 1970s in the Yili valley. No strongly increasing tendency was detected in the mean maximum temperature anomaly from April to August during this reconstructed period.