City, Country: Zambazamba catchment area, Nasandratrony, Madagascar
French partner submitting the project description: Grand Lyon Metropole
Project Owner: Grand Lyon Metropole
Prime Contractor: Etc Terra
French partners: Rhône Mediterranean Corsica Water Agency, Lyon City Council,
Foreign partners: Agrisud International, Regional authorities of Haute Matsiatra (Madagascar)
Dates of project: 2014-2017
A few words on the project…
In a region where half of the population has no access to drinking water, the Grand Lyon Métropole has been working alongside its partners since 2006 to facilitate access to drinking water and sanitation and to help towns in the region of Haute Matsiatra to shoulder their responsibilities for the management of drinking water and sanitation services.
Background or General project description
Etc Terra, an association founded in 2012, works in partnership with Agrisud International in various African countries. Its mission is to show that it is possible and beneficial to reconcile economic development and conservation of natural capital in rural regions of developing countries.
This association work alongside the grand Lyon Metropole on this project.
According to the FAO, agricultural production should more than double in developing countries by 2050. This necessary increase in production will inevitably have consequences on water resources which, in some regions of the world, have already been significantly impacted by climate change effects. Madagascar is highly exposed to such issues given the prevalence of irrigated rice-growing, which is performed by two million households. Consequently, there are frequent conflicts of interest between drinking water and agricultural uses.
In March 2014, an integrated water resources managements’ project was launched for the Zambazamba catchment area, which supplies drinking water to the town of Nasandratrony to prevent conflicts of use and to reconcile water and food security.
A development plan was developed following a participatory process involving local stakeholders.
Within this framework, three areas of work were identified:
- Protection and increase of water resources upstream of the catchment: establishment of 60 hectares of agro-forestry developments on contour lines, especially close to the water intake to promote infiltration of rainwater rather than runoff;
- Improvement of water productivity downstream of the intake through the dissemination of water-efficient practices and most importantly Systems of Rice Intensification (SRI), which have the double advantage of reducing water consumption and improving yields.
Some fifty farmers are receiving individual support to implement this process;
- Impact measurement: the system implemented is designed to measure the expected
improvement in the rainfall-runoff ratio, both at the intake and outlet of the Zambazamba catchment area. The climate impact of the project will also be evaluated at the end of the project, including the CO2 sequestration achieved through agro-forestry developments.
This project is closely connected with the drinking water supply program project CAP’EAU which is being implemented by Lyon City Council and its partners and which will benefit 4,500 persons in Nasandratrony alone.
Ultimately, the aim of this pilot project is to be replicated 1 in other municipalities in the Haute-Matsiatra region 2 and within larger catchment areas, similar to the sites involved in the Holistic Forest Conservation Program - a REDD + program (Reducing Emissions from Deforestation and Forest Degradation ) which Etc Terra and Agrisud International are also implementing in Madagascar.
Strengths of project
Through this project, Etc Terra is helping to disseminate practices with multiple benefits, including the conservation and efficient use of water resources, the diversification and increase of farmers’ incomes and climate change adaptation and mitigation.