DB52T 822-2013 软阔二元立木材积表 12页

ICS79.040B68DB52贵州省地方标准DB52/T822—2013软阔二元立木材积表Thebinarystandingtreevolumetableofsoftwoodspecies2013-06-09发布2013-07-09实施贵州省质量技术监督局发布\n\nDB52/T822—2013目次前言................................................................................II1范围..............................................................................12术语和定义........................................................................13二元立木材积模型及表..............................................................24使用方法..........................................................................2单株立木材积可将实测胸径、树高带入模型直接计算，或将实测胸径、树高整化后查表1。但实测胸径超过表列范围和超出适用范围的软阔树种应慎用。.........................................2I\n\n学兔兔www.bzfxw.comDB52/T822—2013前言本标准按照GB/T1.1—2009《标准化工作导则第1部分：标准的结构和编写》给出的规则起草。请注意：本文件的某些内容可能涉及专利，本文件的发布机构不承担识别这些专利的责任。本标准由贵州省林业厅提出并归口。本标准起草单位：贵州省森林资源管理站、贵州省林业调查规划院。本标准起草人：罗洪章、夏忠胜、朱松、尹晓阳、韩郸、顾永顺、颜伟、陈婷、杨婷。II\n\nDB52/T822—2013软阔二元立木材积表1范围本标准规定了贵州省软阔树种（组）二元立木材积模型及表、使用方法。本标准主要适用于枫香、桦木、香椿、杨树、朴树等常见软阔树种（组）。2术语和定义下列术语和定义适用于本文件。2.1软阔树种（组）softwoodspecies包括枫香、桦木、香椿、杨、柳、桉、檫、泡桐、楝、枫杨、榆、木荷、其他软阔等。2.2胸径diameteratbreastheight从根颈起向上1.3m处树干的带皮直径。2.3径阶diameterclass林木胸径的整化，即把一定范围内的胸径用该范围的中间值来表示。2.4树高treeheight从根颈起向上到树梢的树干全部高度。2.5树高阶treeheightclass林木树高的整化，即把一定范围内的树高用该范围的中间值来表示。2.6材积volume指不包括枝丫的全树干体积。2.71\nDB52/T822—2013二元立木材积表binarystandingtreevolumetable指依据立木材积与胸径、树高两个因子间的关系而编制的立木材积计量数表。3二元立木材积模型及表3.1软阔二元立木材积模型1.89885(0.85616+0.00064635×(D+H))V=0.000073624×D×H..................(1)式中：3V—材积，单位为立方米（m）；D—胸径，单位为厘米（cm）；H—树高，单位为米（m）。3.2软阔二元立木材积表依据模型展开的软阔二元立木材积见表1。4使用方法4.1径阶划分径阶按2cm整化，如5.0cm～6.9cm为6径阶。4.2树高阶划分树高10m以下按1m级距分级，如2.5m～3.4m为3树高阶；10m以上按2m级距分级，如11.0m～12.9m为12树高阶。但9.5m～10.9m为10树高阶。4.3单株立木材积计算单株立木材积可将实测胸径、树高带入模型直接计算，或将实测胸径、树高整化后查表1。但实测胸径超过表列范围和超出适用范围的软阔树种应慎用。2\nDB52/T822—2013表1软阔二元立木材积表H/mD/cm345678910121416182022242628303V/m40.00260.00340.00410.00480.00550.00620.00680.007560.00730.00890.01040.01190.01340.01480.01630.01910.021980.01540.01800.02060.02310.02570.02820.03310.03800.0428100.03150.03540.03930.04310.05070.05820.06560.0730120.05020.05570.06120.07190.08260.09310.10360.1140140.06750.07490.08220.09670.11100.12520.13930.1534160.09680.10630.12500.14350.16190.18020.19840.2167180.12140.13330.15680.18010.20320.22620.24910.27200.2949200.16330.19220.22080.24910.27730.30550.33360.36180.3899220.19630.23110.26550.29960.33360.36750.40140.43530.4693240.27350.31420.35470.39500.43520.47540.51560.5559260.31940.36710.41440.46160.50860.55570.60270.64990.6972280.36880.42400.47880.53330.58780.64220.69670.75130.80600.8610300.42180.48500.54770.61030.67260.73500.79750.86000.92280.98583\nDB52/T822—2013表1软阔二元立木材积表（续）H/mD/cm678910121416182022242628303V/m320.55010.62140.69240.76330.83420.90510.97631.04761.1192340.61930.69970.77980.85970.93971.01971.10001.18051.2613360.69260.78270.87240.96201.05161.14131.23131.32151.4121380.77020.87040.97041.07021.17001.26991.37011.47071.5717400.85190.96291.07371.18421.29481.40561.51671.62821.7401420.93771.06021.18231.30421.42621.54841.67091.79391.9174441.02781.16231.29631.43021.56421.69841.83301.96802.1037461.12221.26921.41581.56221.70871.85562.00282.15062.2991481.38091.54071.70031.86002.02002.18052.34172.5036501.49761.67111.84442.01792.19182.36622.54142.7173521.80701.99482.18272.37102.56002.74972.9403_________________________________4\n\nDB52/T822-2013