[an error occurred while processing this directive]
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7. 3个桦木属树种树轮解剖参数主成分(PC)与各季节气候因素的相关关系。AN, 全年; AUT, 秋季; GS, 当年生长季; PGS, 上一年生长季; PNG, 上一年非生长季; pWin, 上一年冬季; SPR, 春季; SUM, 夏季。P, 月降水量; Rh, 年相对湿度; SPEI, 标准化降水-蒸散指数; T, 月平均气温; Tmax, 月平均最高气温; Tmin, 月平均最低气温。树种代码同表1。*, p < 0.05。

Fig. 7. Relationship between the principal components (PC) of the anatomical parameters of the tree whorls of three birch species and climatic factors by season. AN, annual; AUT, autumn; GS, growing season; PGS, previous growing season; PNG, previous non-growing season; pWin, previous winter; SPR, spring; SUM, summer. 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. See Table 1 for the codes of tree species. *, p < 0.05.