ICS65.020B05DB52贵州省地方标准DB52/T710-2011杉木相对树高曲线表TherelativetreeheightcurvetableofChineseFire2011-02-25发布2011-03-01实施贵州省质量技术监督局发布DB52/T710-2011I目次前言................................................................................II1范围..............................................................................12术语和定义........................................................................13相对树高曲线模型及表..............................................................23.1杉木中心产区相对树高曲线模型及表..............................................23.2杉木一般产区相对树高曲线模型及表..............................................24使用方法..........................................................................24.1相对胸径计算..................................................................24.2相对树高计算..................................................................24.3树高计算......................................................................2DB52/T710-2011II前言为满足计算贵州省杉木单株立木树高或径阶平均木树高、减少野外调查树高测量工作量的需要,依据相对树高与相对胸径的关系,特制定本标准。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。本标准主要起草人:夏忠胜、朱松、罗洪章、尹晓阳、张江平、舒明灿、姚祖岩、向琼。DB52/T710-20111杉木相对树高曲线表1范围本标准规定了贵州省杉木依据相对胸径计算的相对树高。本标准适用于杉木中心产区、一般产区。2术语和定义2.1中心产区thecentralproductionarea指贵州省锦屏、黎平、从江、榕江、雷山、台江、剑河、天柱、三都等9个杉木生产力较高的县。2.2一般产区thegeneralproductionarea指贵州省除锦屏、黎平、从江、榕江、雷山、台江、剑河、天柱、三都等9个县以外的其他杉木分布区域。2.3胸径thediameteratbreastheight从根颈起向上1.3m处树干的带皮直径。2.4树高thetreeheight从根颈起向上到树梢的树干全部高度。2.5相对树高therelativetreeheight指样地各径阶平均树高或单株立木树高与样地平均树高的比值。2.6相对胸径therelativediameteratbreastheight指样地各径阶平均胸径、单株立木胸径与样地平均胸径的比值。2.7相对树高曲线therelativetreeheightcurve指林分中各径阶平均树高与林分平均高的比值和各径阶平均直径与林分平均直径的比值之间的相关曲线。DB52/T710-201123相对树高曲线模型及表3.1杉木中心产区相对树高曲线模型及表中心产区相对树高曲线模型如公式(1):RH=(1-e(-1.14778))-1.02952×(1-e(-1.14778).RD)1.02592.......................(1)式中:RH—相对树高,%;RD—相对胸径,%;e—自然对数。依据该模型展开的相对树高曲线表见表1。3.2杉木一般产区相对树高曲线模型及表杉木一般产区相对树高曲线模型如公式(2):RH=(1-e(-1.21432))-1.11642×(1-e(-1.21432).RD)1.11642.......................(2)式中:RH—相对树高,%;RD—相对胸径,%;e—自然对数。依据该模型展开的相对树高曲线表见表2。4使用方法4.1相对胸径计算根据样地每木检尺结果计算出样地平均胸径,以样地各径阶平均胸径或各株立木胸径除以样地平均胸径得到各径阶相对胸径或各株立木相对胸径。4.2相对树高计算计算单株立木相对树高、径阶相对树高可根据单株立木、径阶相对胸径查表1、表2,或将单株立木、径阶相对胸径带入模型(1)、(2)直接计算。4.3树高计算4.3.1根据样地每木检尺结果计算出样地平均胸径,再选3~5株平均样木实测胸径、树高计算出胸径平均值、树高平均值。4.3.2以平均木的平均胸径与样地平均胸径的比值作为修正系数,乘以平均木的平均树高作为样地平均树高。4.3.3用相对树高曲线模型(1)、(2)计算或将表1、表2中的估计值乘以样地平均树高得到各样木或各径阶的树高估计值。表1杉木中心产区相对树高曲线表RD/%RH/%RD/%RH/%RD/%RH/%0.150.2231.351.1582.501.393DB52/T710-20113表1杉木中心产区相对树高曲线表(续)RD/%RH/%RD/%RH/%RD/%RH/%0.200.2911.401.1762.551.3980.250.3561.451.1932.601.4030.300.4171.501.2092.651.4070.350.4761.551.2242.701.4110.400.5311.601.2382.751.4150.450.5831.651.2512.801.4180.500.6321.701.2642.851.4220.550.6791.751.2762.901.4250.600.7231.801.2872.951.4280.650.7651.851.2983.001.4310.700.8041.901.3083.051.4340.750.8421.951.3183.101.4360.800.8772.001.3273.151.4390.850.9112.051.3353.201.4410.900.9422.101.3433.251.4430.950.9722.151.3513.301.4451.001.0002.201.3583.351.4471.051.0272.251.3653.401.4491.101.0522.301.3713.451.4501.151.0752.351.3773.501.4521.201.0982.401.3833.551.4541.251.1192.451.3883.601.4551.301.139表2杉木一般产区相对树高曲线表RD/%RH/%RD/%RH/%RD/%RH/%0.150.2001.351.1652.501.4030.200.2671.401.1832.551.4070.250.3321.451.2002.601.4120.300.3941.501.2172.651.4160.350.4531.551.2322.701.4200.400.5101.601.2472.751.4230.450.5641.651.2612.801.4270.500.6151.701.2742.851.4300.550.6641.751.2862.901.4330.600.7101.801.2972.951.4360.650.7541.851.3083.001.439DB52/T710-20114表2杉木一般产区相对树高曲线表(续)RD/%RH/%RD/%RH/%RD/%RH/%0.700.7951.901.3183.051.4410.750.8341.951.3283.101.4440.800.8712.001.3373.151.4460.850.9062.051.3453.201.4480.900.9392.101.3533.251.4500.950.9712.151.3613.301.4521.001.0002.201.3683.351.4541.051.0282.251.3753.401.4551.101.0542.301.3813.451.4571.151.0792.351.3873.501.4581.201.1022.401.3923.551.4601.251.1242.451.3983.601.4611.301.145_________________________________DB52/T710-2011