气候变化领域集成服务门户(CCPortal): A comparison of area-based forest attributes derived from airborne laser scanner, small-format and medium-format digital aerial photography

CCPortal

DOI	10.1016/j.jag.2018.12.002
	A comparison of area-based forest attributes derived from airborne laser scanner, small-format and medium-format digital aerial photography
	Iqbal I.A.; Musk R.A.; Osborn J.; Stone C.; Lucieer A.
发表日期	2019
ISSN	15698432
起始页码	231
结束页码	241
卷号	76
英文摘要	Forest inventory operations have greatly benefitted from remotely sensed data particularly airborne laser scanning (ALS) which has become a popular technology choice for large-area forest inventories. For remote regions, for fragmented estates or for single stand-level inventories ALS may be unsuitable because of the high cost of data acquisition. Point cloud data generated from digital aerial photography (DAP) is emerging as a cost-effective alternative to ALS. In this study we compared area-based forest inventory attributes derived from point cloud datasets sourced from ALS, small-format and medium-format digital aerial photography (SFP and MFP). Non-parametric modelling approach, namely RandomForest, was employed to model forest structural attributes at both plot- and stand-levels. The results were evaluated using field data collected at 105 inventory plots. At plot-level, the maximum difference among relative RMSEs of basal area (BA), top height (H top ), stocking (N) and total stem volume (TSV) of the three datasets was 2.46%, 0.55%, 13.29% and 2.53%, respectively. At stand-level, the maximum difference among relative RMSEs of BA, H top , N and TSV of the three datasets was 3.86%, 1.25%, 7.85% and 6.04%, respectively. This study demonstrates the robustness of DAP across different sensors, and thus informs forest managers planning data acquisition solutions to best suit their operational needs. © 2018 Elsevier B.V.
英文关键词	Airborne laser scanning; Digital aerial photography; Forest inventory; Image point cloud; Medium-format photography; Photogrammetry; Pinus radiata; Random Forest; Small-format photography
语种	英语
scopus关键词	aerial photography; airborne sensing; comparative study; coniferous tree; data acquisition; digital photogrammetry; forest inventory; forest management; Pinus radiata
来源期刊	International Journal of Applied Earth Observation and Geoinformation
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/156521
作者单位	School of Technology, Environments and Design, University of Tasmania, Hobart, 7001, Australia; Timberlands Pacific Proprietary Limited, 113-115 Cimitiere Street, Launceston, 7250, Australia; Department of Primary Industry – NSW, 10 Valentine Ave, Parramatta, NSW 2124, Australia
推荐引用方式 GB/T 7714	Iqbal I.A.,Musk R.A.,Osborn J.,et al. A comparison of area-based forest attributes derived from airborne laser scanner, small-format and medium-format digital aerial photography[J],2019,76.
APA	Iqbal I.A.,Musk R.A.,Osborn J.,Stone C.,&Lucieer A..(2019).A comparison of area-based forest attributes derived from airborne laser scanner, small-format and medium-format digital aerial photography.International Journal of Applied Earth Observation and Geoinformation,76.
MLA	Iqbal I.A.,et al."A comparison of area-based forest attributes derived from airborne laser scanner, small-format and medium-format digital aerial photography".International Journal of Applied Earth Observation and Geoinformation 76(2019).