Results 11 to 20 of about 24,950 (254)
A new theory of tree sap flow. [PDF]
PeerJIntroduction The theory of water transport in trees, according to which the main driving force of water movement is the suction created by the evaporation of water by the meniscus (the curved surface of the capillary liquid column) on the evaporating elements, supported from below by root pressure, is controversial.
Török A +6 more
europepmc +6 more sources
Guan'gai paishui xuebao, 2021 【Objective】 Sap flow in plant is modulated by many biotic and abiotic factors, and the objective of this paper is to study how sap flow in young Acacia mangium responds to environmental changes during rainy season in Hainan province of south China ...
NIU Yongqiang +4 more
doaj +1 more source
Linking Sap Flow Measurements with Earth Observations [PDF]
2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS, 2021 While single-tree transpiration is challenging to compare with earth observation, canopy scale data are suitable for this purpose. To test the potentialities of the second approach, we equipped the trees at two measurement sites with sap flow sensors in spruce forests. The sites have contrasting topography.
Enrico Tomelleri, Giustino Tonon
openaire +2 more sources
Sap Flow in the Stem of Eucalyptus and Changes in Meteorological Factors are not Consistent
Guan'gai paishui xuebao, 2022 【Objective】 Water ascent in plants is driven by water vaporization from their leaves and mediated by meteorological factors. However, how plant species affect the time taken by water to flow from soil to leaves remains poorly understood.
WANG Chengcheng +3 more
doaj +1 more source
Sap Flow Characteristics of Kiwifruit Tree and Its Response to Environmental Factors
Guan'gai paishui xuebao, 2023 【Objective】 To explore the variation characteristics of kiwifruit sap flow and its response to environmental factors. 【Method】 The thermal diffusion pin-type sap flow meter was used to monitor the sap flow law of kiwifruit trees in Guanzhong Plain, and ...
LI Zongyang +4 more
doaj +1 more source
Responses of Stem Sap Flow and Diameter of Ailanthus Altissima to Soil Moisture
Shuitu baochi tongbao, 2022 [Objective] In order to understand the water use strategy of Ailanthus altissima and to formulate efficient water management measures for A. altissima, we investigated the characteristics of sap flow and radial stem variation of A.
Liu Yunjie +3 more
doaj +1 more source
Journal of Forest Science, 2023 Sap flow represents water transport from roots to leaves through the xylem and is used to describe tree transpiration. This paper proposed and tested a procedure to estimate sap flow by calculating global radiation in a digital model of the tree canopy ...
Tomáš Mikita +2 more
doaj +1 more source
A unified nomenclature for sap flow measurements [PDF]
Tree Physiology, 1997 A unified nomenclature for use in heat pulse measurement of sap flow is proposed. This unified nomenclature overcomes fundamental misunderstandings of the physics of heat and sap movement in wood. The nomenclature is also appropriate to other methodologies for sap flow measurement, such as heat balance methods.
W R, Edwards, P, Becker, J, Cermák
openaire +2 more sources
A study on sap flow rate of Mallotusphilippensis and its relationship with environmental factors
Journal of Agrometeorology, 2017 Understating of the water availability and its corresponding use by Mallotusphilippensis and its control by climatic factors can give an idea about the ecosystem interaction. The sap flow measurement taken in M. philippensis during 2014 in Barkot forest
T. WATHAM +3 more
doaj +1 more source
Sap Flow at Night in the Stems of Ailanthus Altissima and Its Determinants
Guan'gai paishui xuebao, 2023 【Background and objective】 Water ascent in plants is driven by hydraulic gradient regulated by stomatal opening and closure as well as soil water content; it is generally assumed to be approximately zero at night.
LIU Yunjie +4 more
doaj +1 more source