DOI: 10.1016/j.jag.2014.10.013
Scopus记录号: 2-s2.0-84945252577
论文题名: Red-edge vegetation indices for detecting and assessing disturbances in Norway spruce dominated mountain forests
作者: Adamczyk J ; , Osberger A
刊名: International Journal of Applied Earth Observation and Geoinformation
ISSN: 15698432
出版年: 2015
卷: 37 起始页码: 90
结束页码: 99
语种: 英语
英文关键词: Forest disturbance
; Mountain regions
; Obia
; Rapideye
; Red-edge reflectance
; Worldview-2
Scopus关键词: accuracy assessment
; detection method
; disturbance
; edge effect
; environmental monitoring
; image classification
; montane forest
; mountain region
; RapidEye
; vegetation index
; WorldView
; Norway
; Picea abies
英文摘要: Here we propose an approach to enhance the detection and assessment of forest disturbances in mountain areas based on red-edge reflectance. The research addresses the need for improved monitoring of areas included in the European Natura 2000 network. Thirty-eight vegetation indices (VI) are assessed for sensitivity to topographic variations. A separability analysis is performed for the resulting set of ten VI whereby two VI (PSSRc2, SR 800/550) are found most suitable for threshold-based OBIA classification. With a correlation analysis (SRCC) between VI and the training samples we identify Datt4 as suitable to represent the magnitude of forest disturbance. The provided information layers illustrate two combined phenomena that were derived by (1) an OBIA delineation and (2) continuous representation of the magnitude of forest disturbance. The satisfactory accuracy assessment results confirm that the approach is useful for operational tasks in the long-term monitoring of Norway spruce dominated forests in mountainous areas, with regard to forest disturbance. © 2014 Elsevier B.V.. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/79512
Appears in Collections: 气候变化事实与影响
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作者单位: Warsaw University of Life Sciences, Faculty of Forestry, Nowoursynowska 159 Street, Warsaw, Poland; University of Salzburg, Department of Geoinformatics - Z-GIS, Salzburg, Austria
Recommended Citation:
Adamczyk J,, Osberger A. Red-edge vegetation indices for detecting and assessing disturbances in Norway spruce dominated mountain forests[J]. International Journal of Applied Earth Observation and Geoinformation,2015-01-01,37