Fourteen years of rangeland mapping at I.E.M.V.T.
Purpose of mapping - two-fold option
Criteria to be strictly followed in rangeland cartography
Homogeneity of presentation
Evolution of the presentation of rangeland cartography at I.E.M.V.T. over the past 14 years
Conclusions and wishes
The search for a cartographic methodology applicable to the Sahelian pasturelands
Data on the Sahel
Proposals for a methodology
Factors determining the selection of scales for pastureland maps
The reconnaissance plan (or map) of pasturelands
The synthesis map
The inventory map
Classification of grassy formations by the structure of the vegetation
1. Ranking of criteria
2. Organization of classification
3. Naming of herbaceous formations
Review of the discussions
Techniques and cost
Contents and utilization
Under the Chairmanship of Mr. SORA ADI, Southern Rangelands Project Manager, Ministry of Agriculture, Ethiopia.
5.1. Transcription of data from aerial photographs to base maps.
5.2. Cartographic conventions, i.e. aridity, vegetation, land form, soil, etc.
5.3. Form of presentation.
5.4. Choice of scale.
Chairman: SORA ADI
Rapporteur: E. TRUMP
Discussion leader: G. BOUDET
G. LAMARQUE; C. CAZABAT; G. DE WISPELAERE; A. BLAIR RAINS; B. DESCOINGS.