[1] MENG Xianyu. Tree Measurement （Third Edition）(2006).

[2] CUI Li, YAN Baoyin. Research progress on forest stock volume estimation based on remote sensing technology. Jiangsu Forestry Technology, 47, 45-49(2020).

[3] GUO Qingxi, ZHANG Feng. Estimation of forest biomass based on remote sensing information. Journal of Northeast Forestry University, 31, 13-16(2003).

[4] WANG Zongmei, YUE Cairong, LIU Qi et al. Study on forest volume estimation model based on optical and microwave remote sensing data. Journal of Southwest Agriculture, 31, 1722-1726(2018).

[5] YANG Anrong, ZHANG Chao, WANG Juan et al. Estimation of stand volume by UAV visible light remote sensing technology. Journal of Northeast Forestry University, 50, 70-75(2022).

[6] HOLMGREN J, NILSSON M, OLSSON H. Estimation of tree height and stem volume on plots-using airborne laser scanning. Forest Science, 49, 419-428(2003).

[7] MALTAMO M, EERIKAINEN K, PITKANEN J et al. Estimation of timber volume and stem density based on scanning laser altimetry and expected tree size distribution functions. Remote Sensing of Environment, 90, 319-330(2004).

[8] SCHONEBERG S, NOTHDURFT A, NUSKE R S et al. Comparison of stand volume predictions based on airborne laser scanning data versus aerial stereo images. Allgemeine Forst Und Jagdzeitung, 187, 1-13(2016).

[9] SILVA C A, KLAUBERG C, HUDAK A T et al. A principal component approach for predicting the stem volume in Eucalyptus plantations in Brazil using airborne LiDAR data. Forestry, 89, 422-433(2016).

[10] DU Zhi, CHEN Zhenxiong, MA Kaisen et al. Estimation of stock volume in southern collective forest region based on UAV LiDAR characteristic variable. Forestry Resources Management, 157-165(2021).

[11] ZHOU Yufei, WANG Zhenshi, ZHONG Yingxia et al. Research on Eucalyptus stock volume estimation technology based on UAV airborne LiDAR. Forestry and Environmental Science, 37, 7-11(2021).

[12] SU Di, GAO Xindan. Estimation of forest canopy density and volume based on UAV aerial survey data. Journal of Forestry Engineering, 5, 156-163(2020).

[13] HOPKINSON C, CHASMER L, YOUNG-POW C et al. Asse-ssing forest metrics with a ground-based scanning LiDAR. Canadian Journal of Forest Research, 34, 573-583(2004).

[14] SAARINEN N, KANKARE V, VASTARANTA M et al. Feasibility of Terrestrial laser scanning for collecting stem volume information from single trees. ISPRS-J Photogramm Remote Sensing, 123, 140-158(2017).

[15] SUN Y, LIANG X L, LIANG Z Y et al. Deriving merchantable volume in poplar through a localized tapering function from non-destructive terrestrial laser scanning. Forests, 7(2016).

[16] LIANG X L, KANKARE V, HYYPPA J et al. Terrestrial laser scanning in forest inventories. ISPRS-J Photogramm Remote Sensing, 115, 63-77(2016).

[17] CHIANUCCI F, PULETTI N, GROTTI M et al. Nondestructive tree stem and crown volume allometry in hybrid poplar plantations derived from terrestrial laser scanning. Forest Science, 66, 737-746(2020).

[18] HUA Weicheng, TIAN Jiarong, SUN Xinyu et al. Establishment of poplar taper equation and volume estimation based on TLS data. Journal of Nanjing Forestry University （Natural Science Edition）, 45, 41-48(2021).

[19] LIANG Ziyu, SUN Yuan, LIANG Xinlian et al. Extraction of trunk taper equation based on ground laser scanner. Journal of Nanjing Forestry University （Natural Science Edition）, 38, 6-10(2014).

[20] SUN Yuan, GU Weijiang, LIN Xiuyun et al. Modeling and timber making of Taxodium distichum volume based on ground laser scanning data. Journal of Central South University of Forestry and Technology, 41, 1-25(2021).

[21] XIONG Nina, WANG Jia. Algorithm for extracting volume of standing tree based on ground-based LiDAR. Journal of Forestry Engineering, 5, 143-148(2020).

[22] YANG Yuze, ZHANG Shanshan, LIN Wenshu. Establishment of Birch trunk taper equation based on ground 3D laser scanning and point cloud data. Journal of Northeast Forestry University, 46, 58-63(2018).

[23] LIANG X, HYYPPA J, KAARTINEN H et al. International benchmarking of terrestrial laser scanning approaches for forest inventories. ISPRS-J Photogramm Remote Sensing, 144, 137-179(2018).

[24] QIU Qin, ZHANG Wenge, WANG Lei et al. Estimation of single wood factor of Picea schrenkiana var. tianshanica forest based on backpack LiDAR. Forestry Resource Management, 99-109(2021).

[25] NI Yuan, YANG Hong, YI Juping et al. Research on point cloud denoising of airborne LiDAR based on Terrasolid. Surveying and Mapping and Spatial Geographic Information, 44, 204-209(2021).

[26] ZHAO X Q, GUO Q H, SU Y J et al. Improved progressive TIN densification filtering algorithm for airborne LiDAR data in forested areas. ISPRS-J Photogramm Remote Sensing, 117, 79-91(2016).

[27] TAO S L, WU F F, GUO Q H et al. Segmenting tree crowns from terrestrial and mobile LiDAR data by exploring ecological theories. ISPRS-J Photogramm Remote Sensing, 110, 66-76(2015).

[28] PUESCHEL P, NEWNHAM G, ROCK G et al. The influence of scan mode and circle fitting on tree stem detection， stem diameter and volume extraction from terrestrial laser scans. ISPRS-J Photogramm Remote Sens, 77, 44-56(2013).

[29] ZHOU Yongliang. Research on circle detection algorithm and parameter data management(2012).

[30] LI Chunming, FU Zhuo. Research on three conifer species taper equations based on nonlinear mixed effect model. Journal of Southwest Forestry University（Natural Science Edition）, 41, 118-124(2021).

[31] KOZAK A M D, SMITH JHG. Taper functions and their application in forest inventory. Forest Science, 278-283(1969).

[32] ORMEROD D W. A simple bole model. Forestry Chronicle, 43, 136-143(1973).

[33] ZENG Weisheng, LIAO Zhiyun. Research on taper equation. Scientia Siluricae, 32-38(1997).

[34] YAN Ruohai, WU Fuzhen. Research on product volume variation estimation system. Journal of Nanjing Forestry University （Natural Science Edition）, 16, 31-37(1992).

[35] SU Rui. Research on localization and prediction method based on Bootstrap(2018).

[36] CEN Juyan. Study on dynamic model of binary standing volume of Eucalyptus plantation in Guangxi. Journal of South China Agricultural University, 28, 91-95(2007).

[37] ZHANG Wei, CEN Juyan, QIN Xudong et al. Study on binary volume model of DBH and height of Chinese fir in Guangxi. Guangxi Forestry Science, 49, 397-402(2020).

[38] HUANG Xu, JIA Weiwei, WANG Qiang et al. Single wood factor extraction of Larch by backpack LiDAR. Forest Engineering, 35, 14-21(2019).

[39] WEI Jing. Study on the relationship between DBH and tree height. Journal of Hubei University for Nationalities （Natural Science Edition）, 32, 190-191(2014).

[40] LIN Xiuyun, SUN Yuan, LIU Chenxi et al. Modeling and timber making of chinese fir volume based on ground laser scanning data. Journal of Northeast Forestry University, 50, 33-39(2022).

[41] LIAO Zuhui. Study on the compilation of eucalyptus plantation volume table and volume table in FuJian. Fujian Forestry Science and Technology, 17-20(2005).

[42] LINDBERG E, HOLMGREN J, OLOFSSON K et al. Estimation of stem attributes using a combination of terrestrial and airborne laser scanning. European Journal of Forest Research, 131, 1917-1931(2012).

[43] HAUGLIN M, GOBAKKEN T, ASTRUP R et al. Estimating single-tree crown biomass of norway spruce by airborne laser scanning： A comparison of methods with and without the use of terrestrial laser scanning to obtain the ground reference data. Forests, 5, 384-403(2014).

[44] LIU L X, PANG Y, LI Z Y et al. Combining airborne and terrestrial laser scanning technologies to measure forest understorey volume. Forests, 8(2017).

[45] GAO S, ZHANG Z N, CAO L. Individual tree structural parameter extraction and volume table creation based on near-field LiDAR Data： A case study in a subtropical planted forest. Sensors, 21(2021).

[46] GOU Bingrong. Inversion of Betula platyphylla volume by combining ground-based LiDAR and UAV LiDAR(2021).