Satellite and ground-based pasture production assessment in Niger: 1986-1988
- 1 June 1991
- journal article
- research article
- Published by Informa UK Limited in International Journal of Remote Sensing
- Vol. 12 (6), 1281-1300
- https://doi.org/10.1080/01431169108929726
Abstract
The standing crop of herbaceous biomass produced during the 2-4 month summer rainy season by the annual grasses in the Sahel zone provides an indication of resource availability for livestock for the following 9-month dry season. Combined use of NOAA advanced very high resolution radiometer (AVHRR) local area coverage (LAC) satellite data and biomass data, obtained through vegetation sampling of 25-100 km2 areas, allowed the development of a method for biomass assessment in Niger. Vegetation sampling involved both visual estimates and clipped plots (double sampling). The relationship between time-integrated normalized difference vegetation index (NDVI) statistics derived from NOAA AVHRR LAC data (dependent variable) and total herbaceous biomass (independent variable) was obtained through regression analysis. An inverse prediction was used to estimate biomass from the satellite data. Biomass maps and statistics of the grasslands were produced for the end of each rainy season: 1986, 1987 and 1988. This information is being used for planning purposes by the pastoral resource managers of the Government of Niger.Keywords
This publication has 10 references indexed in Scilit:
- Satellite remote sensing of primary production: comparison of results for Sahelian grasslands 1981-1988International Journal of Remote Sensing, 1991
- Rainfall, biomass and the pastoral economy of Niger: assessing the impact of droughtJournal of Arid Environments, 1990
- Risk, environmental variability and drought-induced impoverishment: the pastoral economy of central NigerAfrica, 1987
- Growing period and drought early warning in Africa using satellite dataInternational Journal of Remote Sensing, 1986
- Monitoring the grasslands of the Sahel 1984-1985International Journal of Remote Sensing, 1986
- Satellite remote sensing of rangelands in Botswana II. NOAA AVHRR and herbaceous vegetationInternational Journal of Remote Sensing, 1986
- Analysis of the dynamics of African vegetation using the normalized difference vegetation indexInternational Journal of Remote Sensing, 1986
- Characteristics of maximum-value composite images from temporal AVHRR dataInternational Journal of Remote Sensing, 1986
- Satellite remote sensing of total herbaceous biomass production in the senegalese sahel: 1980–1984Remote Sensing of Environment, 1985
- Satellite remote sensing of total dry matter production in the Senegalese SahelRemote Sensing of Environment, 1983