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东北地区3种桦木木质部导管特征对气候变化响应的趋同与差异
白雨鑫1, 苑丹阳1, 王兴昌1, 刘玉龙2,3, 王晓春1,*()
Comparison of characteristics of tree trunk xylem vessels among three species of Betula in northeast China and their relationships with climate
BAI Yu-Xin1, YUAN Dan-Yang1, WANG Xing-Chang1, LIU Yu-Long2,3, WANG Xiao-Chun1,*()

图8. 3种桦木年轮解剖参数主成分(PC)与主要季节气候因素的滑动相关。GS, 当年生长季; PGS, 上一年生长季; PNG, 上一年非生长季。P, 月降水量; T, 月平均气温; Tmax, 月平均最高气温; Tmin, 月平均最低气温; Rh, 年相对湿度; SPEI, 标准化降水-蒸散指数。r, 相关系数。树种代码同表1。*, p < 0.05。

Fig. 8. Sliding correlations between the principal components (PC) of the anatomical parameters of the annual rings of three birch species and the main seasonal climatic factors. GS, growing season; PGS, previous growing season; PNG, previous non-growing season. P, monthly precipitation; Rh, annual relative humidity; SPEI, standardized precipitation evapotranspiration index; T, mean monthly air temperature; Tmax, mean monthly maximum air temperature; Tmin, mean monthly minimum air temperature. r, correlation coefficient. See Table 1 for the codes of tree species. *, p < 0.05.