Comparative study of daytime and nighttime sap flow of Populus euphratica
文献类型：期刊论文
| 作者 | Zhao, Chun Yan1,2,3; Si, Jian Hua1,2,3; Feng, Qi1,2,3; Yu, Teng Fei1,3; Li, Pei Du1,2,3 |
| 刊名 | PLANT GROWTH REGULATION
 |
| 出版日期 | 2017-06-01 |
| 卷号 | 82期号:2页码:353-362 |
| ISSN号 | 0167-6903 |
| 关键词 | Sap flow Heat ratio method Principle component analysis Populus euphratica |
| DOI | 10.1007/s10725-017-0263-6 |
| 通讯作者 | Feng, Qi(qifeng@lzb.ac.cn) |
| 英文摘要 | In order to quantify and characterize the variance in desert riparian forest tree sap flow, we measured the sap flow from Populus euphratica and compared the daytime and nighttime patterns and responses to environmental variables. Results showed that daytime sap flow velocity was significantly higher (P < 0.05). Daytime and nighttime mean sap flow velocities were 7.65 and 4.01 cm h(-1) in spring, 21.38 and 9.60 cm h(-1) in summer, and 11.04 and 5.21 cm h(-1) in autumn, respectively. Moreover, results indicated that the stoma remained partially open (15% minimum) throughout the night, providing sufficient evidence for the existance of nighttime transpiration. The vapor pressure deficit (VPD), stomatal conductance (Cs), photosynthetically active radiation (PAR), air temperature (Ta), wind speed (WS), and soil moisture (theta) all had significant positive effects on P. euphratica sap flow velocity (P < 0.05). Furthermore, the relationship between daytime sap flow velocity and VPD showed clockwise hysteresis, while the relationship between nighttime sap flow velocity and VPD showed counter-clockwise hysteresis. It was evident that PAR and VPD were the key factors impacting daytime sap flow velocity, while Cs and theta were the key factors impacting nighttime sap flow velocity. Furthermore, linear regression results showed that daytime sap flow had a significant positive effect on nighttime sap flow throughout the growing season (P < 0.05). |
| 收录类别 | SCI |
| WOS关键词 | WET-TROPICAL FOREST ; EXTREME ARID REGION ; SOIL-WATER ; STOMATAL CONDUCTANCE ; HYDRAULIC REDISTRIBUTION ; NOCTURNAL TRANSPIRATION ; WOODY-PLANTS ; TREE ; STRATEGIES ; RESPONSES |
| WOS研究方向 | Plant Sciences |
| WOS类目 | Plant Sciences |
| 语种 | 英语 |
| 出版者 | SPRINGER |
| WOS记录号 | WOS:000399873000012 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557706 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Feng, Qi |
| 作者单位 | 1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Key Lab Ecohydrol Inland River Basin, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Chun Yan,Si, Jian Hua,Feng, Qi,et al. Comparative study of daytime and nighttime sap flow of Populus euphratica[J]. PLANT GROWTH REGULATION,2017,82(2):353-362. |
| APA | Zhao, Chun Yan,Si, Jian Hua,Feng, Qi,Yu, Teng Fei,&Li, Pei Du.(2017).Comparative study of daytime and nighttime sap flow of Populus euphratica.PLANT GROWTH REGULATION,82(2),353-362. |
| MLA | Zhao, Chun Yan,et al."Comparative study of daytime and nighttime sap flow of Populus euphratica".PLANT GROWTH REGULATION 82.2(2017):353-362. |
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来源：寒区旱区环境与工程研究所
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