3NICOLOTTI G, SOCCO L V, MARTINIS R, et al. Application and comparison of three tomographic techniques for detection of decay in trees[ J]. Journal of Arboriculture, 2003, 29 (2) : 66- 78.
4BRAZEE N J, MARRA R E, GOCKE L, et al, Non-destructive assessment of internal decay in three hardwood species of northeastern North America using sonic and electrical impedance tomography [ J]. Forestry, 2011, 84 ( 1 ) : 33-39.
5BIEKER D, KEHR R, WEBER G, et al. Non-destructive monitoring of early stages of white rot by Trametes versicolor in Fraxinus e.reelsior[ J ]. Annals of Forest Science, 2010, 67(2): 123-127.
