计算36 5.271
材积(M3)检尺长度(m)
检尺径(cm)检尺长度
(m)根数
单位体积
(M3)
总体积
(M3)
检尺径
(cm)
2.0 2.2 2.4 2.5 2.6 2.8
3.0 3.2
4 3.00.0073-40.00410.00470.00630.0056#####0.00660.00730.0080 6 3.00.0134-60.00790.00890.01000.0105#####0.01220.01340.0147 8 3.00.0210-80.01300.01500.01600.0170#####0.02000.02100.0230 10 3.00.0310-100.01900.02200.02400.0250#####0.02900.03100.0340 12 3.00.0430-120.02700.03000.03300.0350#####0.04000.04300.0470 14 3.00.0580-140.03600.04000.04500.0470#####0.05400.05800.0630 16 3.060.07500.450160.04700.05200.05800.0600#####0.06900.07500.0810 18 3.010.09300.093180.05900.06500.07200.0760#####0.08600.09300.1010 20 3.0100.1140 1.140200.07200.08000.08800.0920#####0.10500.11400.1230 22 3.030.13700.411220.08600.09600.10600.1110#####0.12600.13700.1470 24 3.080.1610 1.288240.10200.11400.12500.1310#####0.14900.16100.1740 26 3.030.18800.564260.12000.13300.14600.1530#####0.17400.18800.2030 28 3.030.21700.651280.13800.15400.16900.1770#####0.20100.21700.2340 30 3.00.2480-300.15800.17600.19300.2020#####0.23000.24800.2670 32 3.010.28100.281320.18000.19900.21900.2300#####0.26000.28100.3020 34 3.00.3160-340.20200.22400.24700.2580#####0.29300.31600.3400 36 3.00.3530-360.22600.25100.27600.2890#####0.32700.35300.3800 38 3.010.39300.393380.25200.27900.30700.3210#####0.36400.39300.4220 40 3.00.4340-400.27800.30900.34000.3550#####0.40200.43400.4660 42 3.00.4770-420.30600.34000.37400.3910#####0.44200.47700.5120 44 3.00.5220-440.33600.37200.40900.4280#####0.48400.52200.5610 46 3.00.5700-460.36700.40600.44700.4670#####0.52800.57000.6120 48 3.00.6190-480.39900.44200.48600.5080#####0.57400.61900.6650 50 3.00.6710-500.43200.47900.52600.5500#####0.62200.67100.7200 52 3.00.7240-520.46700.51800.56900.5940#####0.67200.72400.7770
本标准适用于所有树种的原木材积计算
1、检尺径自4～12厘米的小径原木材积由公式 V=0.7854L(D+0.45L+0.2)^2÷10000确定。
2、检尺径自14厘米以上的原木材积由公式 V=0.7854L［D+0.5L+0.005L2+0.000125L(14-L)2×(D-10)］^2÷10000确两式中：V---材积，立方米；L---检尺长，米；D---检尺径，厘米。
0.004086
0.0041
(14-L)2×(D-10)］^2÷10000确定。