DOI: 10.1016/j.jag.2016.06.025
Scopus记录号: 2-s2.0-84997771197
论文题名: The relationship between satellite-derived indices and species diversity across African savanna ecosystems
作者: Mapfumo R ; B ; , Murwira A ; , Masocha M ; , Andriani R
刊名: International Journal of Applied Earth Observation and Geoinformation
ISSN: 15698432
出版年: 2016
卷: 52 起始页码: 306
结束页码: 317
语种: 英语
英文关键词: Remote sensing
; Savanna
; Species diversity
; Spectral variation hypothesis
Scopus关键词: NDVI
; remote sensing
; satellite data
; savanna
; species diversity
; spectral analysis
; woodland
; Africa
英文摘要: The ability to use remotely sensed diversity is important for the management of ecosystems at large spatial extents. However, to achieve this, there is still need to develop robust methods and approaches that enable large-scale mapping of species diversity. In this study, we tested the relationship between species diversity measured in situ with the Normalized Difference Vegetation Index (NDVI) and the Coefficient of Variation in the NDVI (CVNDVI) derived from high and medium spatial resolution satellite data at dry, wet and coastal savanna woodlands. We further tested the effect of logging on NDVI along the transects and between transects as disturbance may be a mechanism driving the patterns observed. Overall, the results of this study suggest that high tree species diversity is associated with low and high NDVI and at intermediate levels is associated with low tree species diversity and NDVI. High tree species diversity is associated with high CVNDVI and vice versa and at intermediate levels is associated with high tree species diversity and CVNDVI. © 2016 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/80035
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Geography and Environmental Science, University of Zimbabwe, P.O. Box MP 167, Harare, Zimbabwe; Centre for International Forestry Research (CIFOR), P.O. Box 0113 BOCBD, Bogor, Indonesia
Recommended Citation:
Mapfumo R,B,, Murwira A,et al. The relationship between satellite-derived indices and species diversity across African savanna ecosystems[J]. International Journal of Applied Earth Observation and Geoinformation,2016-01-01,52