Evidences and magnitude of nighttime transpiration derived from Populus euphratica in the extreme arid region of China
文献类型：期刊论文
| 作者 | Yu, Tengfei1,2; Feng, Qi1,2; Si, Jianhua1,2; Zhang, Xiaoyou1,2; Alec, Downey3; Zhao, Chunyan1 |
| 刊名 | JOURNAL OF PLANT BIOLOGY
 |
| 出版日期 | 2016-12-01 |
| 卷号 | 59期号:6页码:648-657 |
| ISSN号 | 1226-9239 |
| 关键词 | Nighttime transpiration Populus euphratica Sap flow Stomatal conductance |
| DOI | 10.1007/s12374-015-0536-4 |
| 通讯作者 | Feng, Qi(qifeng@lzb.ac.cn) |
| 英文摘要 | Extensive research has found that nighttime transpiration (E (n)) is positively correlated to the vapour pressure deficit (VPD), that suggested E (n) was highest during the night under high temperatures and low humidity along with high soil water availability, typically for the riparian forest in the extreme arid region of China. This study used the heat ratio method to measure sap velocity (V (s)) for mature and saplings Populus euphratica Oliv., and then E (n) was conservatively calculated as total nocturnal sap flow (F (s), the product of V (s) and sapwood area A (s)) between 01:00 to 06:00. A gas exchange system was used to measure the leaf transpiration rate (T (r)) and stomatal conductance (g (s)) of saplings. For mature trees, nighttime V (s) was extensive and logarithmic correlated to VPD (similar to daytime). For saplings, g (s) and T (r) was extensive in different months, and also a strong logarithmic relationship was found between V (s) and VPD for both daytime and nighttime periods. Both of stem sap flow and leaf gas exchange suggusted the occurrence of E (n), whether mature or sapling trees. E (n) contribution to daily transpiration (E (d)) was high just as expected for P. euphratica, which was confirmed by proportional E (n) to E (d) (E (n)/E (d)) means taken in 2012 (24.99%) and 2013 (34.08%). Compared to mature trees, E (n)/E (d) of saplings in 2013 was lower with means of 12.06%, that supported further by the shorter duration times and less T (r,n) (16.64%) and g (s,n) (26.45%) of leaf, suggesting that E (n) magnitude is associated to individual the tree size, that effect to stored water of individual trees, although this hypothesis requires further research. |
| 收录类别 | SCI |
| WOS关键词 | NOCTURNAL STOMATAL CONDUCTANCE ; VAPOR-PRESSURE DEFICIT ; SAP FLOW ; HYDRAULIC REDISTRIBUTION ; WATER-USE ; WOODY-PLANTS ; EUCALYPTUS ; FOREST ; LEAF ; CO2 |
| WOS研究方向 | Plant Sciences |
| WOS类目 | Plant Sciences |
| 语种 | 英语 |
| 出版者 | SPRINGER HEIDELBERG |
| WOS记录号 | WOS:000389986200009 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2557515 |
| 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, Key Lab Ecohydrol Inland River Basin, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Alax Desert Ecohydrol Expt Res Stn, Lanzhou 730000, Peoples R China 3.ICT Int Pty Ltd, Armidale, NSW 2350, Australia |
| 推荐引用方式 GB/T 7714 | Yu, Tengfei,Feng, Qi,Si, Jianhua,et al. Evidences and magnitude of nighttime transpiration derived from Populus euphratica in the extreme arid region of China[J]. JOURNAL OF PLANT BIOLOGY,2016,59(6):648-657. |
| APA | Yu, Tengfei,Feng, Qi,Si, Jianhua,Zhang, Xiaoyou,Alec, Downey,&Zhao, Chunyan.(2016).Evidences and magnitude of nighttime transpiration derived from Populus euphratica in the extreme arid region of China.JOURNAL OF PLANT BIOLOGY,59(6),648-657. |
| MLA | Yu, Tengfei,et al."Evidences and magnitude of nighttime transpiration derived from Populus euphratica in the extreme arid region of China".JOURNAL OF PLANT BIOLOGY 59.6(2016):648-657. |
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来源：寒区旱区环境与工程研究所
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