The ‘Agro-ecological Land Resources Assessment for Agricultural Development Planning — A Case Study of Kenya’, is a case study concerned with the development and implementation of a national level methodology for the determination of land use potentials of land resources of individual districts for policy formulation and development planning. The programme has been carried out by FAO and IIASA in collaboration with the Government of Kenya.
The work is described in a main report entitled: Resources Data Base and Land Productivity. This main report is supported by technical annexes which deal with details.
This technical annex describes the model for the assessment of soil loss due to water erosion and its related impact on productivity of land. Effects of selected conservation measures for reducing soil loss together with costs implications of these measures are included.
This annex is based on the work described in Mitchell (1986). For details of the derivation of equations and values, reference should be made to the above mentioned report. This annex describes the soil erosion and productivity model, which quantifies implications of alternative land uses in terms of topsoil loss due to erosion and its impact on the productivity of land under different assumed soil conservation measures. The climatic and soil resources inventories on which the model operates are described in Technical Annex 1.
FIGURE 2.1
Schematic presentation of the soil erosion and productivity model
