DB52T 768-2012 华山松二元立木材积表 12页

ICS79.040B68DB52贵州省地方标准DB52/T768—2012华山松二元立木材积表Thebinarystandingtreevolumetableofpinusarmandi2012-09-21发布2012-10-21实施贵州省质量技术监督局发布\n\nDB52/T768—2012目次前言................................................................................II1范围...............................................................................12术语和定义.........................................................................13华山松二元立木材积模型及表.........................................................13.1华山松二元立木材积模型.........................................................23.2华山松二元立木材积表...........................................................24使用方法...........................................................................24.1径阶划分.......................................................................24.2树高阶划分.....................................................................24.3单株立木材积计算...............................................................2I\n\n学兔兔www.bzfxw.comDB52/T768—2012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。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。本标准起草人：朱松、夏忠胜、罗洪章、尹晓阳、姚祖岩、向琼、颜伟、唐玉萍。II\n\nDB52/T768—2012华山松二元立木材积表1范围本标准规定了贵州省华山松二元立木材积模型及表、使用方法，适用于贵州省海拔1200米以上区域的华山松。2术语和定义下列术语和定义适用于本文件。2.1胸径diameteratbreastheight从根颈起向上1.3米处树干的带皮直径。2.2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。2.3树高treeheight从根颈起向上到树梢的树干全部高度。2.4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。2.5材积volume指不包括枝丫的全树干体积。2.6二元立木材积表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华山松二元立木材积模型及表1\nDB52/T768—20123.1华山松二元立木材积模型(2.019601-0.0083683×(D+H))(0.47225+0.012475×(D+H))V=0.00011996×D×H式中：3V—材积，单位为m；D—胸径，单位为cm；H—树高，单位为m。3.2华山松二元立木材积表依据模型展开的华山松二元立木材积表见表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。2\nDB52/T768—20120.11230.06920.09880.13340.15160.17140.17290.19660.22220.21700.25020.24690.27940.26550.31470.30250.34260.31830.38610.36310.43350.41160.37500.46420.42850.52150.48620.43550.58410.54890.49840.61710.56630.49940.69150.64000.57250.72010.65150.56660.80740.73710.65070.90280.83010.74150.93150.83991.04220.94691.16321.06351.19071.329730.11660.2311H/mV/m0.13040.15090.11100.30750.36770.43140.34600.41510.4883表1华山松二元立木材积表0.12670.13860.16310.18920.24520.27030.32210.37690.11490.13920.15370.16850.16510.19890.18260.20050.19230.23750.21320.27650.23450.27860.32520.08330.09250.10170.10330.01140.01260.01390.02000.01520.02220.01650.02450.03070.01930.02680.03430.02910.03780.04350.03390.04130.04860.03910.04500.05370.05800.05250.05880.06500.06060.06410.07200.07490.07900.08640.08610.10090.01010.01770.02720.03830.0235345678910121416182022242628300.00740.00880.01290.0154681012141618202224262830D/cm3\nDB52/T768—20121.50651.69321.88952.09512.30982.53302.76453.00383.25063.50443.76494.03154.30384.58151.34811.51411.68841.87062.06042.25752.46152.67202.88863.11093.33863.57113.80814.04921.20321.35021.50421.66501.83222.00542.18422.36842.55752.75112.94893.15043.35543.56331.07031.19991.33541.47661.62301.77431.93022.09032.25432.42182.59242.76582.94163.11950.94831.06191.18041.30351.43091.56221.69711.83531.97632.12002.26602.41382.56332.71403H/mV/m0.83610.93501.03791.14441.25431.36721.48291.60101.72131.84331.96682.09142.21702.34310.73260.81790.90630.99771.09151.18771.28581.38561.48681.58911.69221.79591.89982.0038表1华山松二元立木材积表（续）0.63670.70950.78470.86200.94111.02181.10391.18691.27081.35511.43980.54750.60870.67160.73600.80160.86820.93551.00330.46410.51450.56610.61850.671610121416182022242628300.38550.42593234363840424446485052545658D/cm_________________________________4\n\nDB52/T768-2012