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Abstract

The analysis of global vegetation index data has brought new views on the seasonal and interannual variability in ecological conditions at the scale of biomes. These data have been used to produced broad scale land cover maps and to assess biomass production and overall vegetation conditions. Given the large seasonal, interannual and spatial variations in ecosystem attributes (in particular in Africa), is it reasonable to consider that, for mapping purposes, there are identifiable biome boundaries which are discrete in space and stable in time? The cover shows a contour plot of a 9 years time series of the ratio between surface temperature and the Normalized Difference Vegetation Index (NDVI) monthly composites for a transect (15.00 N to 20.00 S) along the 22.00 E meridian. The plot identifies the surface biophysical state, from low vegetation activity (in dark brown) to high vegetation activity (in dark green). The figure shows also the correspondence between sharp discontinuities in vegetation dynamics and biome boundaries from the biome map of Africa.

Additional information

Authors: MALINGREAU J-P, JRC Ispra (IT);EHRLICH D, JRC Ispra (IT);LAMBIN E F, JRC Ispra (IT)
Bibliographic Reference: Article: International Journal of Remote Sensing (1996)
Record Number: 199610125 / Last updated on: 1996-03-01
Category: PUBLICATION
Original language: en
Available languages: en