Biamah, E.K., 2005. Coping with Drought: Options for soil and water management in semi-arid Kenya. Tropical Resource Management Papers No. 58 (2005).

Citation:
KIPNGETICH PROFBIAMAHELIJAH. "Biamah, E.K., 2005. Coping with Drought: Options for soil and water management in semi-arid Kenya. Tropical Resource Management Papers No. 58 (2005).". In: Wageningen University and Research Centre Publication. ISBN 90-6754-861-8. Also published as thesis (2005) by Wageningen University, ISBN 90-8504-178-3. Kisipan, M.L.; 2005.

Abstract:

In semi arid Kenya, episodes of agricultural droughts of varying severity and duration occur. The occurrence of these agricultural droughts is associated with seasonal rainfall variability and can be reflected by seasonal soil moisture deficits that significantly affect crop productivity. Model simulation of the stochastic behaviour of dry and wet spells and rainsums provides some insights into: the differences in rainfall characteristics within an agricultural watershed; and distribution and reliability of seasonal rainfall for various uses. The longest dry spell analysis is of practical relevance to the selection of the best conservation practices (including conservation tillage) for soil and water management whilst the largest rainsum analysis can be used to determine the watershed runoff volume and discharges that would assist in the design of flood and erosion control structures, and the design of runoff water catchment systems (RWCS), which are essential for supplementary irrigation in semi arid Kenya. This study adopted an agro-hydrologic systems approach to the mitigation of agricultural drought at micro, meso and macro scale levels within an agricultural watershed. This approach had its premise that many agricultural drought problems in unstable ecosystems are best solved through farmers interventions at the micro scale level, conservation planning at the meso scale level and resource management at the macro scale level. Thus, the adopted agro-hydrologic systems approach is holistic and aimed at optimizing soil and water management in hydrologically defined geographical areas. The three levels of agricultural drought mitigation should be hierarchical and must consider all factors influencing the hydrologic and hydraulic properties of dominant soils in semi arid Kenya.

Notes:

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