DOI: 10.1016/j.jag.2017.04.005
Scopus记录号: 2-s2.0-85030853144
论文题名: Adapting a Natura 2000 field guideline for a remote sensing-based assessment of heathland conservation status
作者: Schmidt J ; , Fassnacht F ; E ; , Neff C ; , Lausch A ; , Kleinschmit B ; , Förster M ; , Schmidtlein S
刊名: International Journal of Applied Earth Observation and Geoinformation
ISSN: 15698432
出版年: 2017
卷: 60 起始页码: 61
结束页码: 71
语种: 英语
英文关键词: Calluna vulgaris
; Hyperspectral
; Key species index
; Monitoring
; Structure-from-Motion (SfM)
; UAV
Scopus关键词: adaptive management
; biomonitoring
; conservation status
; habitat quality
; mapping
; nature conservation
; remote sensing
; Calluna
; Calluna vulgaris
英文摘要: Remote sensing can be a valuable tool for supporting nature conservation monitoring systems. However, for many areas of conservation interest, there is still a considerable gap between field-based operational monitoring guidelines and the current remote sensing-based approaches. This hampers application in practice of the latter. Here, we propose a remote sensing approach for mapping the conservation status of Calluna-dominated Natura 2000 dwarf shrub habitats that is closely related to field mapping schemes. We transferred the evaluation criteria of the field guidelines to three related variables that can be captured by remote sensing: (1) coverage of the key species, (2) stand structural diversity, and (3) co-occurring species. Continuous information on these variables was obtained by regressing ground reference data from field surveys and UAV flights against airborne hyperspectral imagery. Merging the three resulting quality layers in an RGB representation allowed for illustrating the habitat quality in a continuous way. User-defined thresholds can be applied to this stack of quality layers to derive an overall assessment of habitat quality in terms of nature conservation, i.e. the conservation status. In our study, we found good accordance of the remotely sensed data with field-based information for the three variables key species, stand structural diversity and co-occurring vegetation (R2 of 0.79, 0.69, and 0.71, respectively) and it was possible to derive meaningful habitat quality maps. The conservation status could be derived with an accuracy of 65%. In interpreting these results it should be considered that the remote sensing based layers are independent estimates of habitat quality in their own right and not a mere replacement of the criteria used in the field guidelines. The approach is thought to be transferable to similar regions with minor adaptions. Our results refer to Calluna heathland which we consider a comparably easy target for remote sensing. Hence, the transfer of field guidelines to remote sensing indicators was rather successful in this case but needs further evaluation for other habitats. © 2017 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/79991
Appears in Collections: 气候变化事实与影响
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作者单位: Institute of Geography and Geoecology, Karlsruhe Institute of Technology, Karlsruhe, Germany; Department of Computational Landscape Ecology, UFZ – Helmholtz Centre for Environmental Research, Leipzig, Germany; Geoinformation in Environmental Planning Lab, Technical University of Berlin, Berlin, Germany
Recommended Citation:
Schmidt J,, Fassnacht F,E,et al. Adapting a Natura 2000 field guideline for a remote sensing-based assessment of heathland conservation status[J]. International Journal of Applied Earth Observation and Geoinformation,2017-01-01,60