April-watching sap flow

[Watching the river flow].

PrometheusWiki | Sap flow

Sap flow measurements provide a powerful tool for quantifying plant water use and monitoring qualitative physiological responses of plants to environmental conditions. As such, sap flow methods are widely employed to investigate the agronomic, ecological, and hydrological outcomes of plant growth. The following summary provides an overview of thermodynamic sap flow measurement techniques used t...

Methods to Estimate Sap Flow

A variety of methods is available to calculate mass flow of water in the transpiration stream by using heat as a tracer. Measurements can be taken both in herbaceous and woody plants and in any conductive organ, including roots. Depending on the method, measurements are taken in the part of the conductive organ where the sensors are located, or in the whole perimeter of the conductive organ. So...

Measuring the Sap Flow of Eucalyptus Trees

We describe the design and implementation of Savia, a sensor network system for measuring the sap flow of eucalyptus trees. Unlike prior sensor network systems, which generally take a vertically integrated approach and build everything from scratch, Savia is built out of several existing sensor systems. The difficulties we encountered when combining these systems demonstrate why a vertically in...

A unified nomenclature for sap flow measurements.

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.