Comparison of canopy transpiration between Pinus sylvestris var. mongolica and Pinus tabuliformis plantations in a semiarid sandy region of Northeast China
Comparison of canopy transpiration between Pinus sylvestris var. mongolica and Pinus tabuliformis plantations in a semiarid sandy region of Northeast China
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樟子松冠层蒸腾作用比较
DOI：
10.1016/j.agrformet.2021.108784
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发表时间：
2022-03
影响因子：
6.2
通讯作者：
Liu Jianhua
中科院分区：
文献类型：
--
作者：
Song Lining;Zhu Jiaojun;Zheng Xiao;Wang Kai;Zhang Jinxin;Hao Guangyou;Wang Guochen;Liu Jianhua
Mongolian pine (Pinus sylvestrisvar.mongolica) has been introduced to vast areas of semiarid sandy region of northern China to create plantations, and it plays an important role in improving environmental conditions. These trees often show obvious dieback after age of 35–40 during extreme drought years, while native Chinese pine (Pinus tabuliformis) plantations grow healthily. Water is the most important resource for tree growth and survival in these regions; however, the transpiration dynamics of introduced Mongolian pine, unlike those of native Chinese pine, are still unknown, limiting proper management of plantations. Here, canopy transpiration and canopy conductance of Mongolian pine and Chinese pine plantations that were both 18 years old were quantified using sap flow method, and environmental variables were monitored concurrently. Results showed that canopy transpiration per unit leaf area (EL) averaged 1.1 and 0.7 mm d−1for Mongolian pine and Chinese pine, respectively, indicating that in comparison to native pine species, introduced pine species had a higher transpiration rate due to higher canopy conductance. Sensitivity of ELresponse to meteorological variables decreased with increasing soil moisture stress for both pine species, but the larger decrease for Mongolian pine indicated a higher sensitivity to drought. Additionally, canopy conductance per unit leaf area for Mongolian pine was 70% higher than that for Chinese pine, and reference canopy conductance decreased with increasing soil moisture stress for both pine species, indicating there are soil water limitations on canopy conductance. However, a higher decrease in stomatal sensitivity to vapor pressure deficit with increasing soil moisture stress in Mongolian pine than in Chinese pine indicates a greater decrease in hydraulic conductance. These findings indicated that in comparison to Chinese pine, Mongolian pine consumes more water but is less able to control transpiration under drought conditions, showing vulnerability to dieback in extreme drought years.
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中国荒漠地区灌木液流对降雨脉冲的响应
影响因子：
6.2
作者：
Zhao W. Z., Liu B.
通讯作者：
Zhao W. Z., Liu B.
中国东北地区本土树种和外来树种对气候变暖和干燥的不同生长响应
DOI：
10.1007/s00468-019-01848-z
发表时间：
2019-04
期刊：
Trees - Structure and Function
影响因子：
--
作者：
Song Lining;Zhu Jiaojun;Zhang Jinxin;Wang Kai;Lu Linyou;Wang Fengbai;Wang Guochen
通讯作者：
Wang Guochen
西北干旱内陆河流域梭梭灌丛冠层导度模拟
影响因子：
6.2
作者：
Xu Shiqin;Yu Zhongbo;Zhang Ke;Ji Xibin;Yang Chuanguo;Sudicky Edward A.
通讯作者：
Sudicky Edward A.
影响因子：
6.2
作者：
Yanting Hu;T. Duman;D. Vanderklein;P. Zhao;K. Schafer
通讯作者：
Yanting Hu;T. Duman;D. Vanderklein;P. Zhao;K. Schafer
影响因子：
11.6
作者：
Hember, Robbie A.;Kurz, Werner A.;Coops, Nicholas C.
通讯作者：
Coops, Nicholas C.