共 22 条
[3]
BONNER FT, 1967, USDA SO65 FOR SERV R
[4]
BOYLE J R, 1975, Iowa State Journal of Research, V49, P297
[5]
EINSPAHR DW, 1968, 4 I PAP CHEM GEN PHY
[6]
HACSKAYLO J, 1967, OHIO AGR RES DEV CTR, V1004
[7]
HANSEN E, 1983, USDA NC78 FOR SERV G
[8]
Hansen E. A., 1979, Proceedings: Impact of intensive harvesting on forest nutrient cycling., P130
[9]
HANSEN EA, 1985, 5TH P CENTR HARDW FO, P71
[10]
HEILMAN P E, 1972, Canadian Journal of Forest Research, V2, P456, DOI 10.1139/x72-069