Article(id=1309569644927738552, tenantId=1146029695717560320, journalId=1308397196074385509, issueId=1309569631556301196, articleNumber=null, orderNo=null, doi=10.11733/j.issn.1007-0435.2026.02.018, pmid=null, cstr=null, oa=null, hot=0, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1743091200000, receivedDateStr=2025-03-28, revisedDate=1747324800000, revisedDateStr=2025-05-16, acceptedDate=null, acceptedDateStr=null, onlineDate=1790155333977, onlineDateStr=2026-09-23, pubDate=null, pubDateStr=null, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1790155333977, onlineIssueDateStr=2026-09-23, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1790155333977, creator=13701087609, updateTime=1790155333977, updator=13701087609, issue=Issue{id=1309569631556301196, tenantId=1146029695717560320, journalId=1308397196074385509, year='2026', volume='34', issue='2', pageStart='377', pageEnd='744', issueExtLink='null', onlineDate='null', pubDate='1771084800000', pubDateStr='2026-02-15', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1790155330790, creator='13701087609', updateTime=1790156750858, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1309575588013244561, tenantId=1146029695717560320, journalId=1308397196074385509, issueId=1309569631556301196, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1309575588017438866, tenantId=1146029695717560320, journalId=1308397196074385509, issueId=1309569631556301196, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=559, endPage=572, ext={EN=ArticleExt(id=1309569645334586042, articleId=1309569644927738552, tenantId=1146029695717560320, journalId=1308397196074385509, language=EN, title=Aboveground Biomass Estimation in Shrub-Encroached Grasslands by Using Multi-Source UAV Remote Sensing, columnId=null, journalTitle=Acta Agrestia Sinica, columnName=null, runingTitle=null, highlight=null, articleAbstract=Shrub encroachment in grasslands, intensified by climate change and anthropogenic activities, represents a substantial threat to the health of grassland ecosystems. This underscores the pressing need for effective and precise biomass monitoring methodologies. The present study was carried out in the shrub-encroached grasslands of the Xilingol League, to investigate optimal above ground biomass (AGB) estimation model by utilizing unmanned aerial vehicle-based LiDAR and hyperspectral data validated against field measurements. Stepwise multiple linear regression, support vector machine, and random forest algorithms were employed for analysis. The results demonstrated a robust correlation between AGB and both LiDAR-derived mean canopy height and hyperspectral reflectance within the red-edge spectral region. Hyperspectral data demonstrated superior accuracy to LiDAR for herbaceous AGB inversion (R 2 =0.87 vs. 0.24), whereas LiDAR performed better than hyperspectral data for shrub AGB inversion (R 2 =0.58 vs. 0.47). Data fusion significantly improved the model performance, with the random forest model integrating features from both LiDAR and hyperspectral data achieving R 2 values of 0.88 and 0.64 for herbaceous and shrub AGB, respectively. The related findings offer critical scientific support for the sustainable utilization and precise management of shrub-encroached grasslands., authors=MA Lei-chao1,2 , WANG Xing1 , YANG Xiu-chun1 , YANG Dong1 , WANG Zi-chao1 , XING Xiao-yu1 , authorsList=MA Lei-chao, WANG Xing, YANG Xiu-chun, YANG Dong, WANG Zi-chao, XING Xiao-yu, authorCompany=1 School of Grassland Science, Beijing Forestry University, Beijing 100083, China; 2 Command Center for Natural Resources Comprehensive Survey, China Geological Survey, Beijing 100055, China, correspAuthors=null, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1309569645221339833, articleId=1309569644927738552, tenantId=1146029695717560320, journalId=1308397196074385509, language=CN, title=基于无人机多源遥感数据的灌丛草原地上生物量估算, columnId=1309565024058835950, journalTitle=草地学报, columnName=研究论文, runingTitle=null, highlight=null, articleAbstract=气候变化与人类活动加剧了全球草原灌丛化,严重威胁草原生态系统健康,亟需高效精准的生物量监测技术。本研究以锡林郭勒盟灌丛草原为研究区,基于无人机激光雷达(LiDAR)和高光谱数据,结合地面实测数据,采用逐步多元线性回归、支持向量机和随机森林等方法探究了灌丛草原地上生物量(Above-ground biomass,AGB)的最佳反演模型。结果表明,基于LiDAR数据计算的草层平均高度、高光谱数据的红边区间反射率与AGB显著相关。高光谱在草本AGB反演中优于LiDAR精度(R ²=0.87 vs. 0.24),而LiDAR较高光谱则更适用于灌木AGB反演(R ²=0.58 vs. 0.47)。数据融合能显著提升模型精度,LiDAR和高光谱数据多源特征融合的随机森林模型使草本和灌木AGB的R²分别达到0.88和0.64。相关成果可为灌丛草原可持续利用和精细化管理提供重要科学支撑。, authors=马磊超1,2 , 王兴1 , 杨秀春1 , 杨东1 , 王子超1 , 邢晓语1 , authorsList=马磊超, 王兴, 杨秀春, 杨东, 王子超, 邢晓语, authorCompany=1 北京林业大学草业与草原学院, 北京 100083; 2 中国地质调查局自然资源综合调查指挥中心, 北京 100055, correspAuthors=null, authorNote=马磊超(1981-),男,汉族,河南沈丘人,硕士研究生,主要从事草原遥感研究,E-mail:leichaoma@126.com, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=3+edba96JuGl8KOrz1yYeQ==, pdfFileSize=4458523, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=国家自然科学基金项目 (41571105))}, authors=[Author(id=1320576453339632187, tenantId=1146029695717560320, journalId=null, articleId=1309569644927738552, orderNo=null, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=null, email=null, emailSecond=null, emailThird=null, correspondingAuthor=null, authorType=null, ext={EN=AuthorExt(id=null, tenantId=null, journalId=1308397196074385509, articleId=1309569644927738552, authorId=1320576453339632187, language=EN, stringName=MA Lei-chao, WANG Xing, YANG Xiu-chun, YANG Dong, WANG Zi-chao, XING Xiao-yu, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=null, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=null, tenantId=null, journalId=1308397196074385509, articleId=1309569644927738552, authorId=1320576453339632187, language=CN, stringName=马磊超, 王兴, 杨秀春, 杨东, 王子超, 邢晓语, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=null, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=null)], keywords=[Keyword(id=1309569645527524027, tenantId=1146029695717560320, journalId=1308397196074385509, articleId=1309569644927738552, language=CN, orderNo=1, keyword=草原地上生物量), Keyword(id=1309569645611410108, tenantId=1146029695717560320, journalId=1308397196074385509, articleId=1309569644927738552, language=CN, orderNo=2, keyword=激光雷达), Keyword(id=1309569645707879101, tenantId=1146029695717560320, journalId=1308397196074385509, articleId=1309569644927738552, language=CN, orderNo=3, keyword=高光谱), Keyword(id=1309569647373017790, tenantId=1146029695717560320, journalId=1308397196074385509, articleId=1309569644927738552, language=CN, orderNo=4, keyword=机器学习), Keyword(id=1309569647456903871, tenantId=1146029695717560320, journalId=1308397196074385509, articleId=1309569644927738552, language=CN, orderNo=5, keyword=灌丛草原), Keyword(id=1309569647591121600, tenantId=1146029695717560320, journalId=1308397196074385509, articleId=1309569644927738552, language=EN, orderNo=1, keyword=Grassland above-ground biomass), Keyword(id=1309569647675007681, tenantId=1146029695717560320, journalId=1308397196074385509, articleId=1309569644927738552, language=EN, orderNo=2, keyword=LiDAR), Keyword(id=1309569647775670978, tenantId=1146029695717560320, journalId=1308397196074385509, articleId=1309569644927738552, language=EN, orderNo=3, keyword=Hyperspectral), Keyword(id=1309569647863751363, tenantId=1146029695717560320, journalId=1308397196074385509, articleId=1309569644927738552, language=EN, orderNo=4, keyword=Machine learning), Keyword(id=1309569647964414660, tenantId=1146029695717560320, journalId=1308397196074385509, articleId=1309569644927738552, language=EN, orderNo=5, keyword=Shrub-encroached grassland)], refs=null, funds=null, companyList=null, figs=null, attaches=null, journal=Journal(id=1308395841968504927, delFlag=0, nameCn=草地学报, nameEn=Acta Agrestia Sinica, nameHistory1=null, nameHistory2=null, issn=1007-0435, eissn=null, cn=11-3362/S, coden=null, periodic=0, language=CN, oaType=null, ccby=null, superviseOffice=null, ownerOffice=null, pubOffice=null, editorOffice=null, officeType=null, aims=null, clcCode=null, officeProv=null, officeCity=null, officeAddr=null, officeZip=null, officeEmail=null, officePhone=null, editDirector=null, officeDirector=null, officeDirectorPhone=null, officeStaffNum=null, officeEmpNum=null, coverPicUrl=gCdi9sXCX82eLR6S1d4VLg==, journalPrice=null, startedYear=null, abbrevIsoEn=Acta Agrestia Sinica, journalRemark=null, publicationField=null, createdTime=1789875477545, updatedTime=1789876241473, createdBy=18614031015, updatedBy=13701087609, firstLetterCn=C, firstLetterEn=C, subjectCode=Agriculture, subjectName=null, subjectCodeEn=Agriculture, subjectNameEn=null, picCn=gCdi9sXCX82eLR6S1d4VLg==, picEn=4dKqEDfsaGuyf+bpm/3gfw==, jcr=null, cjcr=null, exts=[JournalExt(id=1308399046192812446, language=CN, name=草地学报, nameHistory1=null, nameHistory2=null, managedBy=, sponsoredBy=, publishedBy=, editorOffice=, officeProv=null, officeCity=null, officeAddr=, officeZip=, editDirector=, officeDirector=null, officePhone=null, coverPicUrl=null, journalRemark=, submitArticleUrl=null, websiteUrl=, createdTime=1789876241491, updatedTime=1789876241491, createdBy=13701087609, updatedBy=13701087609, submissionGuidelinesUrl=, submissionAuthorUrl=https://manu40.magtech.com.cn/JournalX_cdxb/authorLogOn.action, submissionEditorUrl=https://manu40.magtech.com.cn/JournalX_cdxb/editorLogOn.action, submissionReviewUrl=https://manu40.magtech.com.cn/JournalX_cdxb/expertLogOn.action, submissionCeEditorUrl=, submissionAeEditorUrl=, option={"copyright":""}), JournalExt(id=1308399046268309919, language=EN, name=Acta Agrestia Sinica, nameHistory1=null, nameHistory2=null, managedBy=, sponsoredBy=, publishedBy=, editorOffice=, officeProv=null, officeCity=null, officeAddr=, officeZip=, editDirector=, officeDirector=null, officePhone=null, coverPicUrl=null, journalRemark=, submitArticleUrl=null, websiteUrl=, createdTime=1789876241509, updatedTime=1789876241509, createdBy=13701087609, updatedBy=13701087609, submissionGuidelinesUrl=, submissionAuthorUrl=https://manu40.magtech.com.cn/JournalX_cdxb/authorLogOn.action, submissionEditorUrl=https://manu40.magtech.com.cn/JournalX_cdxb/editorLogOn.action, submissionReviewUrl=https://manu40.magtech.com.cn/JournalX_cdxb/expertLogOn.action, submissionCeEditorUrl=, submissionAeEditorUrl=, option={"copyright":""})], databaseList=null, tenantJournalId=1308397196074385509, websiteList=[Website(id=1308429426430071695, webName=null, webTitle=null, webDomain=null, webCopyrigh=null, webIpcNo=null, seoTitle=null, seoKeywords=null, seoDescription=null, tenantJournalId=null, journalId=1308397196074385509, journalNameCn=null, journalNameEn=null, grayFlag=null, tenantId=1146029695717560320, platformId=null, journalGroupId=null, journalGroupNameCn=null, journalGroupNameEn=null, type=1, domain=https://castjournals.cast.org.cn/joweb/cdxb/CN, language=CN, createTime=1789883484704, createBy=18614031015, updateTime=1789883745058, updateBy=18614031015, name=草地学报-中文, tplId=1146099689490845704, title=草地学报, delFlag=0, indexPage=/home, props=[WebsiteProps(id=1308430669353340972, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1308429426430071695, code=articleTextType, value=kx, createTime=1789883781040, updateTime=1789883781040, creator=18614031015, updator=18614031015), WebsiteProps(id=1308430669328175145, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1308429426430071695, code=banner, value=null, createTime=1789883781034, updateTime=1789883781034, creator=18614031015, updator=18614031015), WebsiteProps(id=1308430669382701103, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1308429426430071695, code=grayFlag, value=0, createTime=1789883781047, updateTime=1789883781047, creator=18614031015, updator=18614031015), WebsiteProps(id=1308430669319786536, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1308429426430071695, code=logo, value=https://castjournals.cast.org.cn/joweb/cdxb/CN/file/pic?fileId=BZ28lIoKdB54MmA0z6K66g==, createTime=1789883781032, updateTime=1789883781032, creator=18614031015, updator=18614031015), WebsiteProps(id=1308430669395284017, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1308429426430071695, code=minRunFlag, value=0, createTime=1789883781050, updateTime=1789883781050, creator=18614031015, updator=18614031015), WebsiteProps(id=1308430669344952363, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1308429426430071695, code=picServerUrl, value=https://castjournals.cast.org.cn/joweb/cdxb/CN/file/pic, createTime=1789883781038, updateTime=1789883781038, creator=18614031015, updator=18614031015), WebsiteProps(id=1308430669391089712, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1308429426430071695, code=silenceFlag, value=0, createTime=1789883781049, updateTime=1789883781049, creator=18614031015, updator=18614031015), WebsiteProps(id=1308430669336563754, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1308429426430071695, code=staticResourcePath, value=https://castjournals.cast.org.cn/joweb/cast_kjdb_cn_619/, createTime=1789883781036, updateTime=1789883781036, creator=18614031015, updator=18614031015), WebsiteProps(id=1308430669361729581, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1308429426430071695, code=themeColor, value=null, createTime=1789883781042, updateTime=1789883781042, creator=18614031015, updator=18614031015), WebsiteProps(id=1308430669370118190, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1308429426430071695, code=themeStyle, value=null, createTime=1789883781044, updateTime=1789883781044, creator=18614031015, updator=18614031015)]), Website(id=1308429426501374870, webName=null, webTitle=null, webDomain=null, webCopyrigh=null, webIpcNo=null, seoTitle=null, seoKeywords=null, seoDescription=null, tenantJournalId=null, journalId=1308397196074385509, journalNameCn=null, journalNameEn=null, grayFlag=null, tenantId=1146029695717560320, platformId=null, journalGroupId=null, journalGroupNameCn=null, journalGroupNameEn=null, type=1, domain=https://castjournals.cast.org.cn/joweb/cdxb/EN, language=EN, createTime=1789883484721, createBy=18614031015, updateTime=1789883716139, updateBy=18614031015, name=草地学报-英文, tplId=1146101810881728533, title=Acta Agrestia Sinica, delFlag=0, indexPage=/home, props=[WebsiteProps(id=1308430635979264030, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1308429426501374870, code=articleTextType, value=kx, createTime=1789883773083, updateTime=1789883773083, creator=18614031015, updator=18614031015), WebsiteProps(id=1308430635954098203, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1308429426501374870, code=banner, value=null, createTime=1789883773077, updateTime=1789883773077, creator=18614031015, updator=18614031015), WebsiteProps(id=1308430636000235553, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1308429426501374870, code=grayFlag, value=0, createTime=1789883773088, updateTime=1789883773088, creator=18614031015, updator=18614031015), WebsiteProps(id=1308430635945709594, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1308429426501374870, code=logo, value=https://castjournals.cast.org.cn/joweb/cdxb/EN/file/pic?fileId=BZ28lIoKdB54MmA0z6K66g==, createTime=1789883773075, updateTime=1789883773075, creator=18614031015, updator=18614031015), WebsiteProps(id=1308430636012818467, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1308429426501374870, code=minRunFlag, value=0, createTime=1789883773091, updateTime=1789883773091, creator=18614031015, updator=18614031015), WebsiteProps(id=1308430635970875421, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1308429426501374870, code=picServerUrl, value=https://castjournals.cast.org.cn/joweb/cdxb/EN/file/pic, createTime=1789883773081, updateTime=1789883773081, creator=18614031015, updator=18614031015), WebsiteProps(id=1308430636004429858, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1308429426501374870, code=silenceFlag, value=0, createTime=1789883773089, updateTime=1789883773089, creator=18614031015, updator=18614031015), WebsiteProps(id=1308430635962486812, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1308429426501374870, code=staticResourcePath, value=https://castjournals.cast.org.cn/joweb/cast_kjdb_en_623/, createTime=1789883773079, updateTime=1789883773079, creator=18614031015, updator=18614031015), WebsiteProps(id=1308430635987652639, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1308429426501374870, code=themeColor, value=null, createTime=1789883773085, updateTime=1789883773085, creator=18614031015, updator=18614031015), WebsiteProps(id=1308430635991846944, tenantId=1146029695717560320, journalId=null, journalGroupId=null, siteId=1308429426501374870, code=themeStyle, value=null, createTime=1789883773086, updateTime=1789883773086, creator=18614031015, updator=18614031015)])], journalTitle=草地学报, weixinUrl=null, journalUrl=https://manu40.magtech.com.cn/Jweb_cdxb, iacademicId=null, status=1, seqNo=null, journalTitleEn=Acta Agrestia Sinica, journalPhotoCn=gCdi9sXCX82eLR6S1d4VLg==, journalPhotoEn=4dKqEDfsaGuyf+bpm/3gfw==, journalFirstLetter=C, journalRecommend=null, journalNew=null, journalCollection=null, jcrJf=null, cjcrJf=null, jcrJfStr=null, cjcrJfStr=null, submissionFirstDecision=null, sciSubjectClassification=null, casSubjectClassification=null, citeScore=null, totalCitationFrequency=null, icpCode=null, psCode=null, advertisingLicenseCode=null, copyrightInformation=null, country=null, option=, provinceCode=null, provinceName=null, collectFlag=false, interPubPlatform=, interPubPlatformUrl=null), detailUrlCn=https://castjournals.cast.org.cn/joweb/cdxb/CN/10.11733/j.issn.1007-0435.2026.02.018, detailUrlEn=https://castjournals.cast.org.cn/joweb/cdxb/EN/10.11733/j.issn.1007-0435.2026.02.018, pdfUrlCn=https://castjournals.cast.org.cn/joweb/cdxb/CN/PDF/10.11733/j.issn.1007-0435.2026.02.018, pdfUrlEn=https://castjournals.cast.org.cn/joweb/cdxb/EN/PDF/10.11733/j.issn.1007-0435.2026.02.018, aliStartDate=null, aliEndDate=null, collectionFlag=false, citedCount=null, citedUrl=null, previewStatus=0, delFlag=0, hasFullText=0, orderTime=1771084800000, fullTextJson=null, articleText=null, reference=FANG J Y,YANG Y H,MA W H,et al. Ecosystem carbon stocks and their changes in China’s grasslands[J]. SCIENTIA SINICA Vitae ,2010,40(7):566-576 方精云,杨元合,马文红,等. 中国草地生态系统碳库及其变化[J]. 中国科学: 生命科学,2010,40(7):566-576 GRÜN A L,STRASKRABA S,SCHULZ S,et al. Long-term effects of environmentally relevant concentrations of silver nanoparticles on microbial biomass,enzyme activity,and functional genes involved in the nitrogen cycle of loamy soil[J]. Journal of Environmental Sciences ,2018,69:12-22 LIU Z,CHEN R,SONG Y,et al. Aboveground biomass and water storage allocation in alpine willow shrubs in the Qilian Mountains in China[J]. Journal of Mountain Science ,2015,12(1):207-217 XU B,YANG X C,HOU X Y,et al. Advance of technology of remote sensing monitoring for grassland vegetation[J]. Science & Technology Review ,2007(9):5-8 徐斌,杨秀春,侯向阳,等. 草原植被遥感监测方法研究进展[J]. 科技导报,2007(9):5-8 KNAPP N,FISCHER R,CAZCARRA-BES V,et al. Structure metrics to generalize biomass estimation from LiDAR across forest types from different continents[J]. Remote Sensing of Environment ,2020,237:111597 ZHAO Y J,LIU X L,WANG Y,et al. UAV-based individual shrub aboveground biomass estimation calibrated against terrestrial LiDAR in a shrub-encroached grassland[J]. International Journal of Applied Earth Observation and Geoinformation ,2021,101:102358 JIN Y X,XU B,YANG X C, et al. Remote sensing dynamic estimation of grass production in Xilinguole, Inner Mongolia[J]. SCIENTIA SINICA Vitae ,2011,41(12):1185-1195 金云翔,徐斌,杨秀春,等. 内蒙古锡林郭勒盟草原产草量动态遥感估算[J]. 中国科学:生命科学,2011,41(12):1185-1195 HE L,LI A N,YIN G F,et al. Retrieval of Grassland Aboveground Biomass through Inversion of the PROSAIL Model with MODIS Imagery[J]. Remote Sensing ,2019,11(13):1597 GAO H Y,HOU M J, GE J,et al. Hyperspectral Estimation of Aboveground Biomass of Alpine Grassland based on Random Forest Algorithm[J]. Acta Agrestia Sinica ,2021,29(8):1757-1768 高宏元,侯蒙京,葛静,等. 基于随机森林的高寒草地地上生物量高光谱估算[J]. 草地学报,2021,29(8):1757-1768 XING X Y,YANG X C,XU B,et al. Remote sensing estimation of grassland aboveground biomass based on random forest[J]. Journal of Geo-information Science ,2021,23(7):1312-1324 邢晓语,杨秀春,徐斌,等. 基于随机森林算法的草原地上生物量遥感估算方法研究[J]. 地球信息科学学报,2021,23(7):1312-1324 SHEN X J,LIU Y W,LIU B H,et al. Effect of shrub encroachment on land surface temperature in semi-arid areas of temperate regions of the Northern Hemisphere[J]. Agricultural and Forest Meteorology ,2022,320:108943 BAZEZEW M N,HUSSIN Y A,KLOOSTERMAN E H. Integrating Airborne LiDAR and Terrestrial Laser Scanner forest parameters for accurate above-ground biomass/carbon estimation in Ayer Hitam tropical forest, Malaysia[J]. International Journal of Applied Earth Observation and Geoinformation ,2018,73:638-652 GUO Q H,LIU J,TAO S L,et al. Perspectives and prospects of LiDAR in forest ecosystem monitoring and modeling[J]. Chinese Science Bulletin ,2014,59(6):459-478 郭庆华,刘瑾,陶胜利,等. 激光雷达在森林生态系统监测模拟中的应用现状与展望[J]. 科学通报,2014,59(6):459-478 YAO X C,QU Y T,CHANG W J,et al. Estimation of grassland biomass using MODIS data and plant community characteristics[J]. Chinese Journal of Eco-Agriculture ,2017,25(4):530-541 姚兴成,曲恬甜,常文静,等. 基于MODIS数据和植被特征估算草地生物量[J]. 中国生态农业学报,2017,25(4):530-541 YANG S X,ZHANG W J,FENG Q S,et al. Monitoring of grassland herbage accumulation by remote sensing using MODIS daily surface reflectance data in the Qingnan Region[J]. Acta Prataculturae Sinica ,2016,25(8):14-26 杨淑霞,张文娟,冯琦胜,等. 基于MODIS逐日地表反射率数据的青南地区草地生长状况遥感监测研究[J]. 草业学报,2016,25(8):14-26 SONG K X,JIANG F G,HU Z D,et al. Remote sensing inversion of above-ground biomass of grassland in the Tibet Autonomous Region. Acta Ecologica Sinica ,2023,43(13):5600-5613 宋柯馨,蒋馥根,胡宗达,等. 西藏自治区草地地上生物量遥感反演研究[J]. 生态学报,2023,43(13):5600-5613 HUANG J X,WU J,LI C B,et al. Remote sensing retrieval of grassland above-ground biomass in tianzhu county based on Sentinel-2 and Landsat 8 data[J]. Acta Agrestia Sinica ,2021,29(9):2023-2030 黄家兴,吴静,李纯斌,等. 基于Sentinel-2和Landsat 8数据的天祝县草地地上生物量遥感反演[J]. 草地学报,2021,29(9):2023-2030 TONG X,YANG Z L,ZHANG Y R,et al. Estimation of pasture aboveground biomass using different orders of differential hyperspectral vegetation indices[J]. Acta Agrestia Sinica ,2022,30(9):2438-2448 童新,杨震雷,张亦然,等. 基于不同阶微分高光谱植被指数的牧区草场地上生物量估算[J]. 草地学报,2022,30(9):2438-2448 ZHANG Y R,LIU Y X,TONG X,et al. Hyperspectral remote sensing inversion of meadow aboveground biomass based on an XGBoost algorithm[J]. Acta Prataculturae Sinica ,2021,30(4):1-12 张亦然,刘廷玺,童新,等. 基于XGBoost算法的草甸地上生物量的高光谱遥感反演[J]. 草业学报,2021,30(4):1-12 YIN X F,WANG C G, WANG H C,et al. Study on biomass estimation of desert steppe based on hyperspectral characteristic[J]. Journal of Agricultural Mechanization Research ,2018,40(10):154-159 殷晓飞,王春光,王海超,等. 基于高光谱特征参数荒漠草原生物量估测研究[J]. 农机化研究,2018,40(10):154-159 TIBSHIRANI R. Regression shrinkage and selection via the lasso[J]. Journal of the Royal Statistical Society Series B:Statistical Methodology ,1996,58(1):267-288 VAPNIK V N. The nature of statistical learning theory [M]. Cham:Springer New York,2000:156-163 CHEN A,WANG X,ZHANG M,et al. Fusion of LiDAR and multispectral data for aboveground biomass estimation in mountain grassland[J]. Remote Sensing ,2023,15:405 XU C,ZHAO D,ZHENG Z,et al. Correction of UAV LiDAR-derived grassland canopy height based on scan angle[J]. Frontiers in Plant Science ,2023,14:1108109 XU K H,SHI Z,MA L C,et al. Retrieval of grassland aboveground biomass based on airborne LiDAR and SuperView-1 data[J]. Acta Prataculturae Sinica ,2023,32(5):40-49 许开宏,施招,马磊超,等. 基于机载激光雷达与高景一号数据的草原地上生物量反演研究[J]. 草业学报,2023,32(5):40-49 CHEN A,XU C,ZHANG M,et al. Cross-scale mapping of above-ground biomass and shrub dominance by integrating UAV and satellite data in temperate grassland[J]. Remote Sensing of Environment ,2024,304:114024 WULAN T Y,BAO G,WUYUN D J,et al. Hyper-spectral remote sensing estimates of aboveground biomass of grassland[J]. Journal of Inner Mongolia Normal University (Natural Science Edition) ,2015,44(5):660-666 乌兰吐雅,包刚,乌云德吉,等. 草地地上生物量高光谱遥感估算研究[J].内蒙古师范大学学报(自然科学汉文版),2015,44(5):660-666 THOMSON E R,SPIEGEL M P,ALTHUIZEN I H J,et al. Multiscale mapping of plant functional groups and plant traits in the High Arctic using field spectroscopy, UAV imagery and Sentinel-2A data[J]. Environmental Research Letters ,2021,16(5):055006 REN H R,ZHOU G S,ZHANG X S. Estimation of green aboveground biomass of desert steppe in Inner Mongolia based on red-edge reflectance curve area method[J]. Biosystems Engineering ,2011,109(4):385-395 MUTANGA O, SKIDMORE A K. Red edge shift and biochemical content in grass canopies[J]. ISPRS journal of Photogrammetry and Remote Sensing ,2007,62(1):34-42)
草地学报
|研究论文
2026
, 34
(2) :
559
-572
基于无人机多源遥感数据的灌丛草原地上生物量估算
全屏
[Author(id=1320576453339632187, tenantId=1146029695717560320, journalId=null, articleId=1309569644927738552, orderNo=null, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=null, email=null, emailSecond=null, emailThird=null, correspondingAuthor=null, authorType=null, ext={EN=AuthorExt(id=null, tenantId=null, journalId=1308397196074385509, articleId=1309569644927738552, authorId=1320576453339632187, language=EN, stringName=MA Lei-chao, WANG Xing, YANG Xiu-chun, YANG Dong, WANG Zi-chao, XING Xiao-yu, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=null, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=null, tenantId=null, journalId=1308397196074385509, articleId=1309569644927738552, authorId=1320576453339632187, language=CN, stringName=马磊超, 王兴, 杨秀春, 杨东, 王子超, 邢晓语, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=null, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=null)]
马磊超, 王兴, 杨秀春, 杨东, 王子超, 邢晓语
作者信息
作者简介:
马磊超(1981-),男,汉族,河南沈丘人,硕士研究生,主要从事草原遥感研究,E-mail:leichaoma@126.com
Aboveground Biomass Estimation in Shrub-Encroached Grasslands by Using Multi-Source UAV Remote Sensing
MA Lei-chao, WANG Xing, YANG Xiu-chun, YANG Dong, WANG Zi-chao, XING Xiao-yu
Affiliations
1 School of Grassland Science, Beijing Forestry University, Beijing 100083, China; 2 Command Center for Natural Resources Comprehensive Survey, China Geological Survey, Beijing 100055, China
doi: 10.11733/j.issn.1007-0435.2026.02.018
文章导航
气候变化与人类活动加剧了全球草原灌丛化,严重威胁草原生态系统健康,亟需高效精准的生物量监测技术。本研究以锡林郭勒盟灌丛草原为研究区,基于无人机激光雷达(LiDAR)和高光谱数据,结合地面实测数据,采用逐步多元线性回归、支持向量机和随机森林等方法探究了灌丛草原地上生物量(Above-ground biomass,AGB)的最佳反演模型。结果表明,基于LiDAR数据计算的草层平均高度、高光谱数据的红边区间反射率与AGB显著相关。高光谱在草本AGB反演中优于LiDAR精度(R ²=0.87 vs. 0.24),而LiDAR较高光谱则更适用于灌木AGB反演(R ²=0.58 vs. 0.47)。数据融合能显著提升模型精度,LiDAR和高光谱数据多源特征融合的随机森林模型使草本和灌木AGB的R²分别达到0.88和0.64。相关成果可为灌丛草原可持续利用和精细化管理提供重要科学支撑。
草原地上生物量
/
激光雷达
/
高光谱
/
机器学习
/
灌丛草原
Shrub encroachment in grasslands, intensified by climate change and anthropogenic activities, represents a substantial threat to the health of grassland ecosystems. This underscores the pressing need for effective and precise biomass monitoring methodologies. The present study was carried out in the shrub-encroached grasslands of the Xilingol League, to investigate optimal above ground biomass (AGB) estimation model by utilizing unmanned aerial vehicle-based LiDAR and hyperspectral data validated against field measurements. Stepwise multiple linear regression, support vector machine, and random forest algorithms were employed for analysis. The results demonstrated a robust correlation between AGB and both LiDAR-derived mean canopy height and hyperspectral reflectance within the red-edge spectral region. Hyperspectral data demonstrated superior accuracy to LiDAR for herbaceous AGB inversion (R 2 =0.87 vs. 0.24), whereas LiDAR performed better than hyperspectral data for shrub AGB inversion (R 2 =0.58 vs. 0.47). Data fusion significantly improved the model performance, with the random forest model integrating features from both LiDAR and hyperspectral data achieving R 2 values of 0.88 and 0.64 for herbaceous and shrub AGB, respectively. The related findings offer critical scientific support for the sustainable utilization and precise management of shrub-encroached grasslands.
Grassland above-ground biomass
/
LiDAR
/
Hyperspectral
/
Machine learning
/
Shrub-encroached grassland
马磊超, 王兴, 杨秀春, 杨东, 王子超, 邢晓语.
基于无人机多源遥感数据的灌丛草原地上生物量估算.
草地学报,
2026
, 34
(2)
: 559
-572
.
DOI: 10.11733/j.issn.1007-0435.2026.02.018
MA Lei-chao, WANG Xing, YANG Xiu-chun, YANG Dong, WANG Zi-chao, XING Xiao-yu.
Aboveground Biomass Estimation in Shrub-Encroached Grasslands by Using Multi-Source UAV Remote Sensing[J].
Acta Agrestia Sinica ,
2026
, 34
(2)
: 559
-572
.
DOI: 10.11733/j.issn.1007-0435.2026.02.018
参考文献
引证文献
FANG J Y,YANG Y H,MA W H,et al. Ecosystem carbon stocks and their changes in China’s grasslands[J]. SCIENTIA SINICA Vitae ,2010,40(7):566-576 方精云,杨元合,马文红,等. 中国草地生态系统碳库及其变化[J]. 中国科学: 生命科学,2010,40(7):566-576 GRÜN A L,STRASKRABA S,SCHULZ S,et al. Long-term effects of environmentally relevant concentrations of silver nanoparticles on microbial biomass,enzyme activity,and functional genes involved in the nitrogen cycle of loamy soil[J]. Journal of Environmental Sciences ,2018,69:12-22 LIU Z,CHEN R,SONG Y,et al. Aboveground biomass and water storage allocation in alpine willow shrubs in the Qilian Mountains in China[J]. Journal of Mountain Science ,2015,12(1):207-217 XU B,YANG X C,HOU X Y,et al. Advance of technology of remote sensing monitoring for grassland vegetation[J]. Science & Technology Review ,2007(9):5-8 徐斌,杨秀春,侯向阳,等. 草原植被遥感监测方法研究进展[J]. 科技导报,2007(9):5-8 KNAPP N,FISCHER R,CAZCARRA-BES V,et al. Structure metrics to generalize biomass estimation from LiDAR across forest types from different continents[J]. Remote Sensing of Environment ,2020,237:111597 ZHAO Y J,LIU X L,WANG Y,et al. UAV-based individual shrub aboveground biomass estimation calibrated against terrestrial LiDAR in a shrub-encroached grassland[J]. International Journal of Applied Earth Observation and Geoinformation ,2021,101:102358 JIN Y X,XU B,YANG X C, et al. Remote sensing dynamic estimation of grass production in Xilinguole, Inner Mongolia[J]. SCIENTIA SINICA Vitae ,2011,41(12):1185-1195 金云翔,徐斌,杨秀春,等. 内蒙古锡林郭勒盟草原产草量动态遥感估算[J]. 中国科学:生命科学,2011,41(12):1185-1195 HE L,LI A N,YIN G F,et al. Retrieval of Grassland Aboveground Biomass through Inversion of the PROSAIL Model with MODIS Imagery[J]. Remote Sensing ,2019,11(13):1597 GAO H Y,HOU M J, GE J,et al. Hyperspectral Estimation of Aboveground Biomass of Alpine Grassland based on Random Forest Algorithm[J]. Acta Agrestia Sinica ,2021,29(8):1757-1768 高宏元,侯蒙京,葛静,等. 基于随机森林的高寒草地地上生物量高光谱估算[J]. 草地学报,2021,29(8):1757-1768 XING X Y,YANG X C,XU B,et al. Remote sensing estimation of grassland aboveground biomass based on random forest[J]. Journal of Geo-information Science ,2021,23(7):1312-1324 邢晓语,杨秀春,徐斌,等. 基于随机森林算法的草原地上生物量遥感估算方法研究[J]. 地球信息科学学报,2021,23(7):1312-1324 SHEN X J,LIU Y W,LIU B H,et al. Effect of shrub encroachment on land surface temperature in semi-arid areas of temperate regions of the Northern Hemisphere[J]. Agricultural and Forest Meteorology ,2022,320:108943 BAZEZEW M N,HUSSIN Y A,KLOOSTERMAN E H. Integrating Airborne LiDAR and Terrestrial Laser Scanner forest parameters for accurate above-ground biomass/carbon estimation in Ayer Hitam tropical forest, Malaysia[J]. International Journal of Applied Earth Observation and Geoinformation ,2018,73:638-652 GUO Q H,LIU J,TAO S L,et al. Perspectives and prospects of LiDAR in forest ecosystem monitoring and modeling[J]. Chinese Science Bulletin ,2014,59(6):459-478 郭庆华,刘瑾,陶胜利,等. 激光雷达在森林生态系统监测模拟中的应用现状与展望[J]. 科学通报,2014,59(6):459-478 YAO X C,QU Y T,CHANG W J,et al. Estimation of grassland biomass using MODIS data and plant community characteristics[J]. Chinese Journal of Eco-Agriculture ,2017,25(4):530-541 姚兴成,曲恬甜,常文静,等. 基于MODIS数据和植被特征估算草地生物量[J]. 中国生态农业学报,2017,25(4):530-541 YANG S X,ZHANG W J,FENG Q S,et al. Monitoring of grassland herbage accumulation by remote sensing using MODIS daily surface reflectance data in the Qingnan Region[J]. Acta Prataculturae Sinica ,2016,25(8):14-26 杨淑霞,张文娟,冯琦胜,等. 基于MODIS逐日地表反射率数据的青南地区草地生长状况遥感监测研究[J]. 草业学报,2016,25(8):14-26 SONG K X,JIANG F G,HU Z D,et al. Remote sensing inversion of above-ground biomass of grassland in the Tibet Autonomous Region. Acta Ecologica Sinica ,2023,43(13):5600-5613 宋柯馨,蒋馥根,胡宗达,等. 西藏自治区草地地上生物量遥感反演研究[J]. 生态学报,2023,43(13):5600-5613 HUANG J X,WU J,LI C B,et al. Remote sensing retrieval of grassland above-ground biomass in tianzhu county based on Sentinel-2 and Landsat 8 data[J]. Acta Agrestia Sinica ,2021,29(9):2023-2030 黄家兴,吴静,李纯斌,等. 基于Sentinel-2和Landsat 8数据的天祝县草地地上生物量遥感反演[J]. 草地学报,2021,29(9):2023-2030 TONG X,YANG Z L,ZHANG Y R,et al. Estimation of pasture aboveground biomass using different orders of differential hyperspectral vegetation indices[J]. Acta Agrestia Sinica ,2022,30(9):2438-2448 童新,杨震雷,张亦然,等. 基于不同阶微分高光谱植被指数的牧区草场地上生物量估算[J]. 草地学报,2022,30(9):2438-2448 ZHANG Y R,LIU Y X,TONG X,et al. Hyperspectral remote sensing inversion of meadow aboveground biomass based on an XGBoost algorithm[J]. Acta Prataculturae Sinica ,2021,30(4):1-12 张亦然,刘廷玺,童新,等. 基于XGBoost算法的草甸地上生物量的高光谱遥感反演[J]. 草业学报,2021,30(4):1-12 YIN X F,WANG C G, WANG H C,et al. Study on biomass estimation of desert steppe based on hyperspectral characteristic[J]. Journal of Agricultural Mechanization Research ,2018,40(10):154-159 殷晓飞,王春光,王海超,等. 基于高光谱特征参数荒漠草原生物量估测研究[J]. 农机化研究,2018,40(10):154-159 TIBSHIRANI R. Regression shrinkage and selection via the lasso[J]. Journal of the Royal Statistical Society Series B:Statistical Methodology ,1996,58(1):267-288 VAPNIK V N. The nature of statistical learning theory [M]. Cham:Springer New York,2000:156-163 CHEN A,WANG X,ZHANG M,et al. Fusion of LiDAR and multispectral data for aboveground biomass estimation in mountain grassland[J]. Remote Sensing ,2023,15:405 XU C,ZHAO D,ZHENG Z,et al. Correction of UAV LiDAR-derived grassland canopy height based on scan angle[J]. Frontiers in Plant Science ,2023,14:1108109 XU K H,SHI Z,MA L C,et al. Retrieval of grassland aboveground biomass based on airborne LiDAR and SuperView-1 data[J]. Acta Prataculturae Sinica ,2023,32(5):40-49 许开宏,施招,马磊超,等. 基于机载激光雷达与高景一号数据的草原地上生物量反演研究[J]. 草业学报,2023,32(5):40-49 CHEN A,XU C,ZHANG M,et al. Cross-scale mapping of above-ground biomass and shrub dominance by integrating UAV and satellite data in temperate grassland[J]. Remote Sensing of Environment ,2024,304:114024 WULAN T Y,BAO G,WUYUN D J,et al. Hyper-spectral remote sensing estimates of aboveground biomass of grassland[J]. Journal of Inner Mongolia Normal University (Natural Science Edition) ,2015,44(5):660-666 乌兰吐雅,包刚,乌云德吉,等. 草地地上生物量高光谱遥感估算研究[J].内蒙古师范大学学报(自然科学汉文版),2015,44(5):660-666 THOMSON E R,SPIEGEL M P,ALTHUIZEN I H J,et al. Multiscale mapping of plant functional groups and plant traits in the High Arctic using field spectroscopy, UAV imagery and Sentinel-2A data[J]. Environmental Research Letters ,2021,16(5):055006 REN H R,ZHOU G S,ZHANG X S. Estimation of green aboveground biomass of desert steppe in Inner Mongolia based on red-edge reflectance curve area method[J]. Biosystems Engineering ,2011,109(4):385-395 MUTANGA O, SKIDMORE A K. Red edge shift and biochemical content in grass canopies[J]. ISPRS journal of Photogrammetry and Remote Sensing ,2007,62(1):34-42
2026年第34卷第2期
PDF下载
117
22
引用本文
BibTeX
文章信息
doi: 10.11733/j.issn.1007-0435.2026.02.018
接收时间:2025-03-28
首发时间:2026-09-23
收稿日期:2025-03-28
修回日期:2025-05-16
https://castjournals.cast.org.cn/joweb/cdxb/CN/10.11733/j.issn.1007-0435.2026.02.018
复制链接
引用本文
BibTeX
2种不同金属材料的力学参数
科 Family 属数 Number of genus 种数 Number of species 占总种数比例 Percentage of total species (%) 属 Genus 种数 Number of species 占总种数比例 Percentage of total species (%) 鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78 小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39 多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39 红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87 小菇属 Mycena 11 5.26 光柄菇属 Pluteus 5 2.39 红菇属 Russula 17 8.13 栓菌属 Trametes 5 2.39
关闭全屏
BibTeX
EndNote
RefWorks
TxT