河西走廊3种杨树（ Populus spp.）防护林气体交换特性对环境因子的响应

薛浩, 杨杰, 杨淇越, 王玉哲, 鲁延芳, 屈鹏

Response of gas exchange characteristics to environmental factors in three Populus shelterbelts of the Hexi Corridor

Hao Xue, Jie Yang, Qiyue Yang, Yuzhe Wang, Yanfang Lu, Peng Qu

图2 3种杨树气体交换特性与温度的关系

Fig.2 Relationship between gas exchange characteristics and temperature of three Populus species