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Land surface phenology in a West African savannah: impact of land use, land cover and fire

Gessner, Ursula and Knauer, Kim and Künzer, Claudia and Dech, Stefan (2015) Land surface phenology in a West African savannah: impact of land use, land cover and fire. In: Remote Sensing Time Series Revealing Land Surface Dynamics Springer. pp. 203-223. doi: 10.1007/978-3-319-15967-6. ISBN 978-3-319-15966-9. ISSN 1567-3200.

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Phenological change and variation have become increasingly relevant topics in global change science due to recognition of their importance for ecosystem functioning and biogeophysical processes. Remote sensing time series offer great potential for assessing phenological dynamics at landscape, regional and global scales. Even though a number of studies have investigated phenology, mostly with a focus on climatic variability, we do not yet have a detailed understanding of phenological cycles and respective biogeographical patterns. This is particularly true for biomes like the tropical savannas, which cover approximately one eighth of the global land surface. Savannas are often characterized by high human population density and growth, one example being the West African Sudanian savanna. The phenological characteristics in these regions can be assumed to be particularly influenced by agricultural land use and fires, in addition to climatic variability. This study analyses the spatio-temporal patterns of land surface phe-nology in a Sudanian savanna landscape of southern Burkina Faso based on time series of the Moderate Resolution Spectroradiometer (MODIS), and on multi-temporal Landsat data. The analyses focus on influences of fire, land use, and vegetation structure on phenological patterns, and disclose the effects of long-term fire frequency, as well as the short-term effects of burning on the vegetation dynamics observed in the following growing season. Possibilities of further improvements for remote sensing based analyses of land surface phenology are seen in using earth observation datasets of increased spatial and temporal resolution as well as in linking phenological metrics from remote sensing with actual biological events observed on the ground.

Item URL in elib:https://elib.dlr.de/96779/
Document Type:Book Section
Title:Land surface phenology in a West African savannah: impact of land use, land cover and fire
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Journal or Publication Title:Remote Sensing Time Series Revealing Land Surface Dynamics
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 203-223
EditorsEmailEditor's ORCID iD
Künzer, Claudiaclaudia.kuenzer@dlr.deUNSPECIFIED
Dech, StefanStefan.dech@dlr.deUNSPECIFIED
Wagner, WolfgangTU WienUNSPECIFIED
Keywords:Phenology, West Africa, Fire, Land Cover, Vegetation Dynamics, Time Series, Burkina Faso
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - Vorhaben Fernerkundung der Landoberfläche (old)
Location: Oberpfaffenhofen
Institutes and Institutions:German Remote Sensing Data Center > Land Surface
German Remote Sensing Data Center > Leitungsbereich DFD
Deposited By: Gessner, Ursula
Deposited On:23 Jun 2015 09:10
Last Modified:23 Jun 2015 09:10

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