Electrical Resistance as Indicator of State of Health and Survival Prognosis of Silver Fir from Air Polluted Areas

1990

S. 17-26

3 Abb., 3 Lit. Ang.

Unselbständiges Werk

200047416

Measuring electrical resistance (ER) of living tissues at the tree base proved to be a sensitive method for assessing tree condition and survival changes of declined trees in air polluted areas. In 400 test trees periodic determinations of ER using "shigometer" and "conditiometer" were made and their survival changes assessed.