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UKAID Department for International Development (R4D) 1989

The influence of management practices on the water use efficiency of rainfed crops : Evaporation from Soil

Water use efficiency

UKAID Department for International Development (R4D)

Titre : The influence of management practices on the water use efficiency of rainfed crops : Evaporation from Soil

Pays : Sahel

Projet de recherche pour le Développement :

DFID Programme : Water

Organismes de mise en œuvre
Lead Institutes : University of Reading
Managing Institutes : Rural Livelihoods Department, Department for International Development (UK) (RLD) ; University of Reading
Collaborating Institutes : International Crops Research Institute for Semi-Arid Tropics (ICRISAT)

Durée : Start Date : 01-04-1989 End Date : 30-03-1995

Objectif
1.)To apply the approach developed during the strategic phase to analyse the impact of the principal components of improved cropping systems on evaporation from the soil, with emphasis on distinguishing between the contribution of the high cost and low cost inputs.
2.)To extend the approach developed in the previous project to include feed-back between evaporation from leaves and from the soil surface.
3.)To validate in the field the process-based evaporation model developed during the first three years on a range of contrasting soils, including soils of heavier texture.
4.)To assess the extent to which soil texture influences soil evaporation, and hence the impact on productivity of management practices which reduce evaporation from the soil surface.
5.)To collaborate with the Institute of Hydrology (IH) in combining their modelling of above-ground evaporation processes with our approach to develop a comprehensive, process-based model of evaporation from sparsely vegetated land, which can be tested on data collected by IH on a past DFID-funded project.
6.)To initiate collaboration with socio-economists at NRI to identify how process-based analysis of the impact of management practices on crop production can be integrated into a socio-economic analysis.

Total Cost to DFID : £204,155

Présentation : UKAID

Page publiée le 6 décembre 2015, mise à jour le 16 octobre 2017