大气CO2倍增条件下冬小麦气体交换对高温干旱及复水过程的响应

郭丽丽,张茜茜,郝立华,乔雅君,陈文娜,卢云泽,李菲,曹旭,王清涛,郑云普

Responses of leaf gas exchange to high temperature and drought combination as well as re-watering of winter wheat under doubling atmospheric CO2 concentration

Li-Li GUO,Xi-Xi ZHANG,Li-Hua HAO,Ya-Jun QIAO,Wen-Na CHEN,Yun-Ze LU,Fei LI,Xu CAO,Qing-Tao WANG,Yun-Pu ZHENG

图1 大气CO2浓度倍增下高温干旱处理对冬小麦叶片近轴面(a)和远轴面(b)气孔空间分布格局影响 图中的Upper 95%表示95%置信区间上界线, Lower 95%表示95%置信区间下界线。Lhat(d)表示最小邻域距离, 即当Lhat(d)值小于95%置信区间时, 气孔在该尺度下为规则分布, 且Lhat(d)的最小值越小, 则气孔空间分布越规则。

Fig. 1 Effects of the combined stress of high temperature and drought on spatial distribution pattern of stomata on the adaxial (a) and abaxial (b) leaf surface of winter wheat under doubling CO2 concentration The upper 95% means the upper boundary of the 95% confidence envelope, the lower 95% means the lower boundary of the 95% confidence envelope. The Lhat(d) value is the nearest neighbor distance, and stomata follow a regular distribution at the scale when the Lhat(d) value is lower than the 95% boundary with the smaller the minimum Lhat(d) value, the more regular spatial distribution pattern of stomata.