globalchange  > 气候变化事实与影响
DOI: 10.1016/j.jag.2015.06.008
Scopus记录号: 2-s2.0-84943604192
论文题名:
Forest inventories by LiDAR data: A comparison of single tree segmentation and metric-based methods for inventories of a heterogeneous temperate forest
作者: Latifi H; , Fassnacht F; E; , Müller J; , Tharani A; , Dech S; , Heurich M
刊名: International Journal of Applied Earth Observation and Geoinformation
ISSN: 15698432
出版年: 2015
卷: 42
起始页码: 162
结束页码: 174
语种: 英语
英文关键词: Area-based method ; Forest structure inventory ; Landscape level management ; LiDAR ; Single tree segment-based method ; Spatial model
Scopus关键词: algorithm ; environmental disturbance ; environmental management ; forest inventory ; landscape protection ; lidar ; national park ; silviculture ; spatial planning ; temperate forest ; Bavaria ; Bavarian Forest National Park ; Central Europe ; Germany
英文摘要: Inventories of temperate forests of Central Europe mainly rely on terrestrial measurements. Rapid alterations of forests by disturbances and multilayer silvicultural systems increasingly challenge the use of conventional plot based inventories, particularly in protected areas. Airborne LiDAR offers an alternative or supplement to conventional inventories, but despite the possibility of obtaining such remote sensing data, its operational use for broader areas in Central Europe remains experimental. We evaluated two methods of forest inventory that use LiDAR data at the landscape level: the single tree segment-based method and an area-based method. We compared a set of structural forest attributes modeled by these methods with a conventional forest inventory of the highly heterogeneous forest of the Bavarian Forest National Park (Germany), which partially includes stands affected by severe natural disturbances. Area-based models were accurate for all structural attributes, with cross-validated average root mean squared error ranging from ~3.4 to ~13.4 in the best modeling case. The coefficients of variation for the mapped area-based estimations were mostly minor. The area-based estimations were varied but highly correlated (Pearson's correlations between ~ 0.56 and 0.85) with single tree segmentation estimations; undetected trees in the single tree segmentat-based method were the main sources of inconsistency. The single tree segment-based method was highly correlated (~ 0.54 to 0.90) with data from ground-based forest inventories. The single tree-based algorithm delivered highly reliable estimates for a set of forest structural attributes that are of interest in forest inventories at the landscape scale.Werecommend LiDAR forest inventories at the landscape scale in both heterogeneous commercial forests and large protected areas in the central European temperate sites. © 2015 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/79569
Appears in Collections:气候变化事实与影响

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作者单位: Department of Remote Sensing in Cooperation with German Aerospace Center, University of Würzburg, Oswald-Külpe-Weg 86, Würzburg, Germany; Institute for Geography and Geoecology, Karlsruhe Institute of Technology, Kaiserstr 12, Karlsruhe, Germany; Department of Nature Protection and Research, Bavarian Forest National Park, Freyunger Str. 2, Grafenau, Germany; Institute of Remote Sensing, Anna University, Sardar Patel Rd., Chennai, India; German Remote Sensing Data Center (DFD), German Aerospace Center (DLR), Wessling, Germany

Recommended Citation:
Latifi H,, Fassnacht F,E,et al. Forest inventories by LiDAR data: A comparison of single tree segmentation and metric-based methods for inventories of a heterogeneous temperate forest[J]. International Journal of Applied Earth Observation and Geoinformation,2015-01-01,42
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