吉林老白山鱼鳞云杉树轮蓝光强度和轮宽指数与气候响应关系随海拔变化的对比
苑丹阳1,2,朱良军1,2,张远东3,李宗善4,赵慧颖5,王晓春1,2,*(
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Comparison of elevational changes in relationships of blue intensity and ring width index in Picea jezoensis with climatic responses in Laobai Mountain of Jilin, China
YUAN Dan-Yang1,2,ZHU Liang-Jun1,2,ZHANG Yuan-Dong3,LI Zong-Shan4,ZHAO Hui-Ying5,WANG Xiao-Chun1,2,*()
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图2. 蛟河1951-2015年月平均气温(T)、月平均最低气温(Tmin)、月平均最高气温(Tmax)、年降水量(P)、相对湿度(RH)和标准降水蒸腾指数(SPEI)的变化趋势。A, 月变化趋势。B, 年际变化趋势。*代表在0.05的水平上显著相关; **代表在0.01的水平上显著相关。短划线为气象资料的分段线性拟合趋势线。
Fig. 2. Trend of changes in mean monthly temperature (T), mean monthly minimum temperature (Tmin), mean monthly maximum temperature (Tmax), total precipitation (P), relative humidity (RH) and standardized precipitation evapotranspiration index (SPEI) in Jiaohe meteorological station during 1951-2015. A, Trend of monthly change. B, Trend of annual change. *, correlation is significant at the 0.05 level; **, correlation is significant at the 0.01 level. Dash is piecewise fitted linear regression line of the meteorological data.
