1.毛白杨人工林立木二元材积表

V=-2.554327×10-3+7.426068×10-4D+3.316892×10-5(D2H)0.986431(材积:m3)胸径(cm)树高(m)33.544.55567891011120.0040.0050.0070.0040.0060.0080.0040.0060.0090.0110.0140.0170.0050.0070.0090.0120.0150.0190.0050.0070.0100.0130.0170.0200.0240.028胸径(cm)树高(m)5.566.577.550.0050 ......（本文共 7682 字 ）     [阅读本文]>>