4.南方型意杨人工林立木二元材积表

V=5.588911×10-5(D2H)0.9235978(适用品系:I69/55、I63/51、I72/58)(材积:m3)胸径(cm)树高(m)44.555.5656789101112130.0040.0040.0060.0080.0050.0070.0090.0120.0140.0050.0070.0100.0130.0160.0190.0230.0060.0080.0110.0140.0170.0210.0250.0290.033胸径(cm)树高(m)6.577.588.5678910111213 ......（本文共 7350 字 ）     [阅读本文]>>