No.3FORESTRESOURCESMANAGEMENT第3期June20232023年6月林业资源管理基于LiDAR技术的杉木人工林碳储量估算研究闫保银,姜文龙,范俊俊?,项铮,黄俊3(1.南京国图信息产业有限公司,南京210000;2.金陵科技学院,南京210038;3.南京逐鹿景观工程有限公司,南京210028)摘要:采用机载LiDAR技术对江苏连云港南云台林场杉木人工林进行林分因子调查,基于调查结果和含碳系数,运用生物量方程法估测生物量和碳储量,旨在为杉木林经营管理和开展固碳增汇提供依据。结果表明:1)y=4.6642e127(R=0.8012)为胸径优选反演模型;2)杉木人工林碳储量随径级的增大而不断增加,其地上碳储量(4.31~72.79hm²)显著高于地下碳储量(1.17~21.44hm²),在全株碳储量(5.48~94.23/hm²)中占绝对优势;3)对比不同径组间全株碳储量倍数关系,中径组是小径组的3.4倍;大径组是中径组的2.68倍;特大径组是大径组的1.89倍,碳储量增速随径级增大呈逐渐降低趋势;4)从杉木碳储量在不同器官中的分配来看,树干和树枝中的碳储量随径级的增加而增多,叶片随径级的增加而减少。关键词:LiDAR;杉木;碳汇;碳储量中图分类号:S757.2文献标识码:A文章编号:1002-6622(2023)03-0134-06D0I:10.13466/j.cnki.lyzygl.2023.03.018ResearchonCarbonStorageEstimationofCunninghamialanceolataPlantationBasedonLiDARTechnologyYANBaoyin',JIANGWenlong',FANJunjun²,XIANGZheng',HUANGJun3(1.NanjingGTMAPInformationIndustryCO.Ltd,Nangjing210000,China;2.JinglinInstituteofTechnology,Nanjing210038,China;3.NanjingZhuLuJingGuanInformationIndustryCO.Ltd,Nangjing210028,China)Abstract:Inthisstudy,theairborneLiDARtechnologywasusedtoinvestigatethestandfactorsoftheCunninghamialanceolataplantationinNanyuntaiForestFarm.Basedonthesurveyresults,thebiomassandcarbonstoragewereestimatedusingthebiomassequationmethodcombinedwiththecarboncoefficient,inordertoprovideabasisforthemanagementofCunninghamialanceolata'andthedevelopmentofcarbonsequestrationandsinkincreaseactities.Theresultsindicatethat1)y=4.642ea1237(R?=0.8012)is123theoptimalinversionequationfordiameteratbreastheight(DBH);2)ThecarbonstorageofCunninghamialanceolataplantationincreasedwiththeincreaseofDBHclass,anditsabovegroundcarbonstorage4.31~72.79t/hm')wassign...