Results 11 to 20 of about 3,191,228 (246)
Proceedings, 2019 In this study, we focused on direct and quantitative monitoring of sap dynamics in plant stems, and proposed the microscale xylem sap flow sensor. This sensor facilitates the simultaneous measurement of flow velocity and direction by combining the ...
Yuki Hara +5 more
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GrassesHeat velocity (Vh) is a key metric to estimate sap flow which is linked to transpiration rate and is commonly measured using thermocouples implanted in plant stems or tree trunks.
Oscar Parra-Camara +4 more
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Observations of high-velocity SAPS-like flows with the King Salmon SuperDARN radar [PDF]
Annales Geophysicae, 2006 Abstract. In this study, a focused investigation of the potential for the King Salmon (KS) SuperDARN HF radar to monitor high-velocity flows near the equatorial edge of the auroral oval is undertaken. Events are presented with line-of-sight velocities as high as 2km/s, observed roughly along the L-shell.
Koustov, A. V. +6 more
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Evaluation of the heat pulse velocity method for measuring sap flow inPinus patula [PDF]
Journal of Experimental Botany, 1996 Information on the water use of Pinus patula plantations is required to predict the impact of forest plantations on water resources in South Africa. The heat pulse velocity (HPV) method is a promising technique for measuring water use by trees, and has been shown to measure sap flows accurately in a variety of hardwood trees.
P.J. Dye, S. Soko, A.G. Poulter
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Sap flow velocities of Acer saccharum and Quercus velutina during drought: Insights and implications from a throughfall exclusion experiment in West Virginia, USA [PDF]
Science of The Total Environment, 2022 Forest species composition mediates evapotranspiration and the amount of water available to human-use downstream. In the last century, the heavily forested Appalachian region has been undergoing forest mesophication which is the progressive replacement of xeric species (e.g. black oak (Quercus velutina)) by mesic species (e.g.
Guillén Alm, Luis Andrés +5 more
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Sap flow and water transfer in the Garonne river riparian woodland, France : first results on poplar and willow [PDF]
, 2002 This work is the first attempt at using Granier sap sensors on Populus nigra, Populus x euramericana cv I45/51 and Salix alba for the monitoring of sap flows in an active floodplain over two consecutive years.
Étienne Muller +3 more
core +1 more source
A New Method of Measuring Velocity Profiles using a MultiElectrode Electromagnetic Flow Meter [PDF]
, 2010 This paper describes a model of a novel design of electromagnetic flow meter for velocity profile measurement in single phase and multiphase flows with nonuniform axial velocity profiles.
Lucas, Gary, Leeungculsatien, Teerachai
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Daily variations of water use with vapor pressure deficit in a plantation of I214 poplars. [PDF]
, 2009 Daily rates of whole tree water use were measured in a homogeneous 7-year-old plantation over 84 days. Two trees were selected in the two most contrasting ends, i.e., with mean water table at -1.5 m and -3.5 m. Results showed that the mean tree water use
Etienne Muller +3 more
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Silva Fennica, 2022 Physiological studies of long-lived trees are particularly important at this time, especially in light of the need for trees to adapt to global climate change.
Urszula Zajączkowska +3 more
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A flowmeter for measuring the dispersed phase velocity in multiphase flow with non-uniform velocity profile [PDF]
, 2008 This study aims to introduce a new technique to measure the velocity distribution of the dispersed component of a vertical, upward, water continuous two-phase pipe flow. Here, it is proposed that measurements of the variation in the local conductance
Al-Hinai, Sulaiyam, Lucas, Gary
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