DB2104T 0028-2023 根徑-胸徑對照表 軟闊　

ICS65.020.01B60DB2104撫順市市場監(jiān)督管理局發(fā)布IDB2104/T0028-2023前言 12規(guī)范性引用文件 13術語和定義 14確定模型 25根徑-胸徑對照表建立和使用 2附錄A（規(guī)范性附錄）根徑-胸徑對照表軟闊 3DB2104/T0028-2023本文件按照GB/T1.1—2020《標準化工作導則第1部分：標準化文件的結構和起草規(guī)則》的規(guī)定起草。本文件由新賓滿族自治縣自然資源事務服務中心提出。本文件由撫順市自然資源局歸口。本文件起草單位：新賓滿族自治縣自然資源事務服務中心。本文件主要起草人：胡喜華、楊振宇、王正利、陳明海、胡文宇、孫恒坤、金山、楊振強、李云霄、王立明、余連城、翟金鳳、楊希恒、許水威、梁浩然、趙東偉、王巖、黃舜威、勇環(huán)英、紀宏、榮光、王福英、龐家舉、封福才、高鼎淇、邢錫銅、鄭揚、駱崇云、趙光杰、李霞、楊曉紅、邱健、宋殿臣、于國斌、岳杰、裴嘉倩、于躍文、許成林、王愛國、蓋闊、王守國、張軍、聶大光、王海旭、劉旭、李欽、孫濤、李利業(yè)、郭興隆、金釧、陸國輝、曹官、魏春雷、陳德輝。1DB2104/T0028-2023根徑-胸徑對照表軟闊本文件規(guī)定了撫順市《根徑-胸徑對照表軟闊》的規(guī)范性引用文件、術語和定義、確定模型、根徑-胸徑對照表建立和使用。本文件適用于軟闊的單株根徑-胸徑對照測算。2規(guī)范性引用文件下列文件對于本文件的應用是必不可少的。凡是注日期的引用文件，僅所注日期的版本適用于本文件。凡是不注日期的引用文件，其最新版本（包括所有的修改單）適用于本文件。LY/T2416林業(yè)數表編制數據采集技術規(guī)程3術語和定義下列術語和定義適用于本文件。3.1軟闊凡是木材端面硬度達到701公斤/平方厘米及其以下的，即稱軟闊葉樹種。包括白樺、山楊、柳、椴樹等。3.2胸徑樹干直徑分為帶皮直徑和去皮直徑兩種，測量單位是厘米（cm）。樹干直徑隨其在樹干上的位置不同而變化，從根頸至樹梢樹干直徑呈現(xiàn)出由大到小的變化規(guī)律。其中位于距根頸1.3m處的直徑，稱為胸高直徑，簡稱為胸徑。3.3根徑指林木距地面（坡面時上坡口）5cm處伐根圍尺直徑。3.4建模單元具有地域的連接性和行政區(qū)的完整性以及自然條件的一致性的區(qū)域組合。2DB2104/T0028-20234確定模型根徑-胸徑模型D1.3=0.771979D0.05+式中：D0.05—根徑；D1.3—胸徑。5根徑-胸徑對照表建立和使用5.1根徑-胸徑對照表建立以非線性模型為基礎，根據編表樣本根徑變化范圍，按胸徑表格式建立根徑-胸徑對照表軟闊。詳見附錄A。5.2使用范圍根徑-胸徑對照表應在編表區(qū)域內滿足編表單元條件的林木中使用，根徑徑階6cm-76cm。本文件可參照確定模型適當推算至根徑200cm。本文件的最終解釋權歸編制單位。3DB2104/T0028-2023（規(guī)范性附錄）根徑-胸徑對照表軟闊表1根徑64.74.74.84.9555.15.25.35.475.45.55.65.75.85.85.966.16.286.26.36.46.56.56.66.76.86.96.9977.17.27.37.37.47.57.67.77.77.87.988.18.18.28.38.48.58.58.68.78.88.98.999.19.29.39.39.49.59.69.79.79.89.920.020.120.120.220.320.420.520.620.620.720.820.921.021.121.121.221.321.421.521.621.621.721.821.922.022.122.122.222.322.422.522.622.622.722.822.923.023.123.123.223.323.423.523.623.623.723.823.924.024.124.124.224.324.424.524.624.624.724.824.925.025.125.125.225.325.425.525.625.625.725.825.926.026.126.226.226.326.426.526.626.726.726.826.927.027.127.227.227.327.427.527.627.727.727.827.928.028.128.228.228.328.428.528.628.728.728.828.929.029.129.229.329.329.429.529.629.729.829.829.930.04DB2104/T0028-2023根徑-胸徑對照表軟闊表1（續(xù)）根徑30.130.230.330.330.430.530.630.730.830.930.931.031.131.231.331.431.431.531.631.731.831.931.932.032.132.232.332.432.532.54032.632.732.832.933.033.033.133.233.333.44133.533.533.633.733.833.934.034.134.134.24234.334.434.534.634.634.734.834.935.035.14335.235.235.335.435.535.635.735.735.835.94436.036.136.236.336.336.436.536.636.736.84536.836.937.037.137.237.337.437.437.537.64637.737.837.937.938.038.138.238.338.438.54738.538.638.738.838.939.039.039.139.239.34839.439.539.639.639.739.839.940.040.140.14940.240.340.440.540.640.740.740.840.941.041.141.241.241.341.441.541.641.741.841.841.942.042.142.242.342.442.442.542.642.742.842.942.943.043.143.243.343.443.543.543.643.743.843.944.044.144.144.244.344.444.544.644.644.744.844.945.045.145.245.245.345.445.545.645.745.845.845.946.046.146.246.346.346.446.546.646.746.846.946.947.047.147.247.347.447.547.547.647.747.847.948.048.048.148.248.348.448.548.648.648.748.848.949.049.149.249.249.349.449.56049.649.749.849.849.950.050.150.250.350.36150.450.550.650.750.850.950.951.051.151.26251.351.451.551.551.651.751.851.952.052.16352.152.252.352.452.552.652.752.752.852.96453.053.153.253.253.353.453.553.653.753.86553.853.954.054.154.254.354.454.454.554.66654.754.854.955.055.055.155.255.355.455.56755.655.655.755.855.956.056.156.256.256.36856.456.556.656.756.756.856.957.057.157.26957.357.357.457.557.657.757.857.957.958.05DB2104/T0028-2023根徑-胸徑對照表軟闊表1（續(xù)）根徑58.158.258.358.458.558.558.658.758.858.959.059.159.159.259.359.459.559.659.759.759.859.960.0