共 16 条
[1]
CAMPBELL RS, 1957, 6 P ANN FOR S LA STA, P13
[2]
CAMPBELL RS, 1954, 488 LA AGR EXP STA B
[3]
DUVALL V. L., 1962, JOUR RANGE MANAGEMENT, V15, P14, DOI 10.2307/3894802
[4]
EHRENREICH JOHN H., 1959, JOUR RANGE MANAGEMENT, V12, P133, DOI 10.2307/3895170
[5]
HERSHFIELD DM, 1962, 40 US DEP COM WEATH
[6]
HOOVER MD, 1954, 42 US FOR SERV SOUTH
[7]
JENKINS HT, 1947, SOIL MECHANICS LABOR
[8]
LEITHEAD H. L., 1950, Journal of Range Management, V3, P95, DOI 10.2307/3893652
[9]
LINNARTZ NE, 1966, J FOREST, V64, P239
[10]
Parker K.W., 1959, TECHNIQUES METHODS M, P55