Water stress is one of the major growth-limiting factors in the Sudano—Sahelian Zone of West Africa. Due to the complex interactions of multiple growth restricting factors, a scientific quantification of water deficits on plant growth is complicated. Deterministic plant growth models (e.g. SWASUC model, CERES—Millet model) are able to describe the interactions between growth-determining factors and the environment. The development of simulation models would therefore be helpful in the classification of potential production zones for the northern part of Burkina Faso. Before plant growth models can be built up and applied, local measurements, calibration and verification are required. Many simulation results from models (see Fechter 1993) indicated that growth restriction factors other than water stress, i.e. low soil fertility or soil properties which affect soil moisture, had a significant influence on yield formation. The exploration of soil properties is of fundamental importance in the African Sahel to detect possible agricultural sites. By the combination of relief, soil types and soil water content sites for potential land use are derived. The derived field data have to be transfered to patterns in aerial photos and spectral signatures of satellite images (mainly Landsat TM and Spot XS) in order to link the field data to remote sensing information. For integrating field data to remote sensing data, robust parameters have to be found, and advanced RS techniques like RGB to USGS Munsell Color transformation or the calculation of specific indices (i.e. redness index or brightness index) have to be used.
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- Evaluation of Potential Land Use Sites in Dry Areas of Burkina Faso with the Help of Remote Sensing
- Springer Berlin Heidelberg
Systemische Notwendigkeit zur Weiterentwicklung von Hybridnetzen