Explaining NDVI trends in northern Burkina Faso

Special issue dedicated to Professor Anette Reenberg

Auteur(s) et Affiliation(s)

RASMUSSEN, K.

Dept. of Geosciences and Natural Resource Management, Univ., Copenhagen, Danemark

FENSHOLT, R.

Dept. of Geosciences and Natural Resource Management, Univ., Copenhagen, Danemark

FOG, B.

Dept. of Geosciences and Natural Resource Management, Univ., Copenhagen, Danemark

RASMUSSEN, L.V.

Dept. of Geosciences and Natural Resource Management, Univ., Copenhagen, Danemark

YANOGO, I.

Dept. of Geography, Univ., Ouagadougou, Burkina Faso

Description :
The aim of the paper is to explain this distinct pattern of NDVI trends in northern Burkina Faso. When studied over the period 2000-2012, using NDVI data from the MODIS sensor the spatial pattern of NDVI trends indicates that non-climatic factors are involved. By relating NDVI trends to landscape elements and land use change the AA. demonstrate that NDVI trends in the north-western parts of the study area are mostly related to landscape elements, while this is not the case in the south-eastern parts, where rapidly changing land use, including expansion of irrigation, plays a major role. It is inferred that a process of increased redistribution of fine soil material, water and vegetation from plateaus and slopes to valleys, possibly related to higher grazing pressure, may provide an explanation of the observed pattern of NDVI trends. Further work will focus on testing this hypothesis.

Type de document :
Article de monographie

Source :
Geografisk tidsskrift, issn : 1903-2471, 2014, vol. 114, n°. 1, p. 17-24, nombre de pages : 8, Références bibliographiques : 25 ref.

Date :
2014

Identifiants :
eurl : http://dx.doi.org/10.1080/00167223.2014.890522, doi : http://dx.doi.org/10.1080/00167223.2014.890522

Editeur :
Pays édition : Danemark, Kobenhavn, Det Kongelige Danske Geografiske Selskab

Langue :
Anglais