Indications of vigor loss after fire in Caribbean pine (Pinus caribaea) from electrical resistance measurements

摘要: In May 1993, electrical resistance measurements were performed on trees in burned and unburned stands of Caribbean pine (Pinus caribaea Mor.) north-eastern Nicaragua to determine whether tree vigor was affected by fire. An Osmose model OZ-67 Shigometer with digital readout used collect the sample data. Computer-simulated randomization techniques evaluate significance differences between living various ages. Electrical as an index general metabolic activity – our chosen definition vigor. Results indicate a loss that comparison those did not.