共 14 条
[1]
BLACKLOCK N E, 1980, Proceedings of the Nova Scotian Institute of Science, V30, P89
[2]
Carroll G.C, 1980, FORESTS FRESH PERSPE, P87
[3]
Conway E.J., 1957, MICRODIFFUSION ANAL, V4
[5]
CRITTENDEN PD, 1982, NITROGEN ECOLOGICAL
[6]
FARRAR JF, 1973, THESIS U OXFORD
[7]
Millbank J. W., 1978, Ecological Bulletins (Stockholm), P260