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  • 标题:Estimation of timber assortments using low-density ALS data
  • 本地全文:下载
  • 作者:Markus Holopainen ; Mikko Vastaranta ; Jussi Rasinmäki
  • 期刊名称:ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
  • 印刷版ISSN:2194-9042
  • 电子版ISSN:2194-9050
  • 出版年度:2010
  • 卷号:XXXVIII - Part 7A
  • 页码:59-64
  • 出版社:Copernicus Publications
  • 摘要:The objective here was to analyse the effects of inventory errors on the prediction of assortment outturn volumes carried out incurrent airborne laser scanning(ALS)inventory method and forest-planning simulation computing in Finland.Harvested loggingmachine data of12clear-cutting stands(5300trees)in Evo(southern Finland)study area was used as field reference of the study.Prediction error of assortment outturn volumes contains forest inventory,stem distributiongeneration,prediction of stem form andsimulation of bucking errors.ALS inventory-related bias in estimated timber assortments ranged from-5.1m3/ha to20.5m3/ha andRMSE from6.0m3/ha to46.2m3/ha.Accuracy of the estimated stem distributions varies in different stands.The results showed thatthe accuracy of the estimates of timber assortments is considerably poorer than the accuracy of stands mean characteristics
  • 关键词:Fores ; try; I ; nventory; ; Distributed; Laser scan ; ning; Estimation
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