Articles
APPLICATION OF A SAP FLOW TECHNIQUE FOR CHARACTERIZING THE WHOLE TREE ARCHITECTURE, CROWNS AND ROOTS
Article number
846_23
Pages
219 – 228
Language
English
Abstract
Practical fieldwork in non-equipped experimental plots, e.g., such as those situated in difficult terrain and soil conditions in the open landscape, often requires modified research approaches for detail physiological studies.
Several variables are relatively easy to measure at the whole tree and stand levels, e.g. sap flow methods, usually applied for transpiration studies, can also be utilized other ways to characterize effective tree structures.
We demonstrate an example of how the effective tree crown (derived on the basis of diurnal dynamics of sap flow and solar radiation) and effective root distribution pattern, distinguishing superficial and sinker roots (derived on the basis of radial sap flow patterns in stem sapwood) can be inferred.
The described approaches can be applied for further scientific analysis as well as for solving different practical problems.
Several variables are relatively easy to measure at the whole tree and stand levels, e.g. sap flow methods, usually applied for transpiration studies, can also be utilized other ways to characterize effective tree structures.
We demonstrate an example of how the effective tree crown (derived on the basis of diurnal dynamics of sap flow and solar radiation) and effective root distribution pattern, distinguishing superficial and sinker roots (derived on the basis of radial sap flow patterns in stem sapwood) can be inferred.
The described approaches can be applied for further scientific analysis as well as for solving different practical problems.
Publication
Authors
J. Čermák, N. Nadezhdina
Keywords
trunk heat balance method, heat field deformation method, diurnal dynamics, efficient crown form, radial flow patterns in stems, distribution of superficial and sinker roots
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