This publication takes stock of the work undertaken to carry out a diagnosis of oasis agriculture in the Kiffa region (Asaba) in Mauritania based on SPOT remote sensing documents and their digital processing (December 1987 documents). A specific survey methodology is tested for land use mapping, in correlation with field work. Several oasis sites have been identified and located in order to establish a correspondence between land use and the representation of this use on color printed documents resulting from digital processing. The first tests using high-resolution satellite imagery are yielding interesting results. The themes selected have a satisfactory representability. Additional tests carried out from images taken in February-March (off-season crops in the oasis and end of grazing of the neighboring rangelands) will validate the initial work and confirm the possibility of assessing the occupation of the palm grove: area with date palm, doum palm. It might then be possible to quickly estimate areas of palm groves of different densities.