Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2019.06.009 |
Diurnal and nocturnal transpiration behaviors and their responses to groundwater-table fluctuations and meteorological factors of Populus tomentosa in the North China Plain | |
Di, Nan1; Xi, Benye1; Clothier, Brent2; Wang, Ye3; Li, Guangde4; Jia, Liming1 | |
2019-09-15 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT
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ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2019 |
卷号 | 448页码:445-456 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; New Zealand |
英文摘要 | For theories of forest water utilization over day-night cycles, it is important to have a reliable information on plant transpiration behaviors during daytime and nighttime and their environmental controls. With the help of thermal dissipation probes, our study investigated the seasonal variations in the diurnal (Q(day)) and nocturnal stand water use (Q(night)) of a Populus tomentosa plantation and explored their responses to groundwater table (GT) fluctuations and the meteorological factors. The results indicated that Q(ni)(ght) occurred on most nights during the growing season in the P. tomentosa plantation, but with a different seasonal dynamic from Q(day). A distinct increase in the ratio of nocturnal to daily water use appeared at the beginning and the end of the growing season. During the experimental period, stem refilling accounted for 61% of Q(ni)(ght), indicating that P. tomentosa was able to draw on stored water in the stem to support transpiration. The Q(day) and Q(ni)(ght) were positively and negatively related to GT, respectively. When the GT varied within 170 cm of the surface, the proportion of stem refilling accounting for Q(ni)(ght) increased with GT. The positive and negative correlations were found in meteorological factors with Q(day) and Q(ni)(ght), respectively. Among the single meteorological factors except for ETo, vapor pressure deficit (VPD) and photosynthetically active radiation (PAR) explained the highest variation in Q(day) in 2010 and 2011, respectively. In contrast, Q(ni)(ght) was dominantly affected by VPD in 2011. Nocturnal stand water-use could help P. tomentosa to recharge the consumption of water stored in the stem and overcome the seasonal drought. The compensation effect of groundwater on the nocturnal stand water-use of P. tomentosa could reduce its consumption of water stored in the stem. As the stand age of P. tomentosa plantation varied, the key meteorological drivers of both Q(day) and Q(night) also changed. Our results enable better understanding of the water-use strategies of poplars in the North China Plain and can lead to refinement of current silvicultural techniques. |
英文关键词 | Sap flow Nocturnal water use Stem refilling Groundwater fluctuation Poplar |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000486553900041 |
WOS关键词 | SOIL-WATER AVAILABILITY ; XYLEM HYDRAULIC SAFETY ; NIGHTTIME SAP FLOW ; INLAND RIVER-BASIN ; THERMAL DISSIPATION ; STOMATAL CONDUCTANCE ; WOODY-PLANTS ; TREE ; STAND ; EUPHRATICA |
WOS类目 | Forestry |
WOS研究方向 | Forestry |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/187082 |
专题 | 气候变化 |
作者单位 | 1.Beijing Forestry Univ, Key Lab Silviculture & Conservat, Minist Educ, 35 East Qinghua Rd, Beijing 100083, Peoples R China; 2.Fitzherbert Sci Ctr, Plant & Food Res, Palmerston North, New Zealand; 3.Beijing Acad Forestry & Pomol, Inst Agr & Forestry Sci, Beijing, Peoples R China; 4.Open Univ China, Fac Agroforestry & Med, Beijing, Peoples R China |
推荐引用方式 GB/T 7714 | Di, Nan,Xi, Benye,Clothier, Brent,et al. Diurnal and nocturnal transpiration behaviors and their responses to groundwater-table fluctuations and meteorological factors of Populus tomentosa in the North China Plain[J]. FOREST ECOLOGY AND MANAGEMENT,2019,448:445-456. |
APA | Di, Nan,Xi, Benye,Clothier, Brent,Wang, Ye,Li, Guangde,&Jia, Liming.(2019).Diurnal and nocturnal transpiration behaviors and their responses to groundwater-table fluctuations and meteorological factors of Populus tomentosa in the North China Plain.FOREST ECOLOGY AND MANAGEMENT,448,445-456. |
MLA | Di, Nan,et al."Diurnal and nocturnal transpiration behaviors and their responses to groundwater-table fluctuations and meteorological factors of Populus tomentosa in the North China Plain".FOREST ECOLOGY AND MANAGEMENT 448(2019):445-456. |
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