7.泡桐人工林立木二元材积表

V=1.367857×10-4D1.666776H0.8936263(材积:m3)胸径(cm)树高(m)33.544.5550.0050.0060.007　　60.0070.0080.0090.010　7891011120.0090.0120.0140.0170.0110.0130.0160.0190.0230.0120.0150.0180.0220.0260.0300.0130.0170.0200.0240.0290.0330.0150.0180.0220.0270.0310.036胸径(cm)树高(m ......（本文共 9358 字 ）     [阅读本文]>>