共 45 条
[3]
BALTENSPERGER BH, 1987, J SOIL WATER CONSERV, V42, P60
[4]
Barr C.J., 1993, Countryside Survey 1990-Main Report
[7]
Baudry J., 1988, B ECOLOGY, V19, P523
[8]
BAUDRY J, 1999, PAYSAGES AGRAIRES EN, P129
[9]
Bazin P., 1994, Revue Forestiere Francaise (Nancy), V46, P130