共 17 条
[1]
CASTELLAN A, 1987, HOLZFORSCHUNG, V4, P231
[2]
COMANOR PL, 1978, NITROGEN DESERT ECOS, P31
[5]
MOORHEAD DL, 1988, IN PRESS J ARID ENV
[6]
Mulvaney B.J., 1982, METHODS SOIL ANAL 2, V2, P595