Abstract
A large number of re-vegetation fields are affected by environmental conditions, such as soil water shortage. Prior to optimum management of these fields, non-destructive testing method for stress evaluation of plant is now in urgent demand. In this study, detection of elastic waves generated from Sarcandra glabra var. flava Makino is going to be performed, applying acoustic emission (AE) method. In water stressed conditions, elastic waves are emitted from gas-liquid flow in plant vessel. The characteristics of elastic waves in soil water stress conditions could be evaluated by comparing soil pF with a rate of AE generation, which is analyzed by time series AE data. A relation between AE rate and soil pF is correlated. Thus, by detecting elastic waves by AE, the water stress condition is quantitatively evaluated.
