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