Informations et ressources scientifiques
sur le développement des zones arides et semi-arides

Titre : Supporting Investment Decisions in Water and Land Management in Volta-Niger Basins

Pays/Région : Burkina Faso, Ghana

Durée  : January 1, 2015 - December 31, 2016

Descriptif
A number of agricultural water management (AWM) and resource recovery & reuse (RRR) solutions for improved agricultural productivity have been proposed and technically verified in the Volta-Niger region. However, their effectiveness in terms of multiple ecosystem services delivery, environmental health, adoption factors and returns on investment (RoI) are largely unknown and the potential of some interventions might be over- or undervalued. Using ecosystem-based approach, this project will assess the effectiveness, adoptability and RoI of selected AWM and RRR interventions to draw lessons and recommendations for their scaling up and business feasibility potential. Four interventions have been selected for analysis : (1) Small water infrastructure for small holder irrigation ; (2) Drip irrigation ; (3) Safe and productive water reuse ; and (4) Nutrient and organic matter recovery from waste. We will analyse the economic and environmental effects of these interventions - alone and in combination - in the landscape by mapping ecosystem services, assessing their benefits and trade-offs as well as addressing gender and equity issues and the potential of these interventions in poverty alleviation and ecosystem health. Selected interventions will be assessed using three analytical modules : (1) Assessment of the potential changes in the delivery of ecosystem services (2) Assessment of the attitudes and perceptions on barriers and opportunities of adoption/out-scaling of the interventions by different stakeholders and for selected geographical areas ; and (3) Analysis and proposition of ‘business models’ for up- or out-scaling of the selected interventions beyond conventional donor support to ensure sustainability. The analyses will provide evidence to our next users including government agencies, development partners and private sectors that could support their investment decisions.

Collaborateurs : iDE-Burkina Faso, Kwame Nkrumah University of Science and Technology(KNUST), West Africa Science Centre for Climate Change and Adapted Land use (WASCAL), Women in Agricultural Development (WIAD),

Financement : WLE

Présentation : IWMI