11.松类人工林立木二元材积表

V=0.000076051908D1.9030339H0.86055052(适用树种:赤松、黑松等)(材积:m3)胸径(cm)树高(m)33.544.55456789101112130.0030.0040.0060.0080.0100.0130.0160.0190.0220.0260.0030.0050.0070.0090.0120.0150.0180.0210.0250.0290.0040.0050.0080.0100.0130.0160.0200.0240.0280.0330.0040.0060.00 ......（本文共 5097 字 ）     [阅读本文] >>