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The boulis - An island of greenery in Sahel

by Florian Bielser | 15 September 2022
Image The boulis - An island of greenery in SahelIn Senegal, but more globally in the entire Sahelian region, water problems are increasingly worrying for populations and ecosystems. Indeed, this region is subject to a rainfall regime of only 3-4 months followed by a complete dry period of 8-9 months.

As part of its territorial diagnosis, the IRHA located existing water points in the Sine Saloum region, Senegal. These water points, locally called marigots are essential for the watering of livestock but also for all wild...
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Image Nursery at the service of the Rain Communities

In support of the "Rain Communities" project, a nursery is being built in Pokhara region to support reforestation and anti-erosion activities. Native plants with high economic value have been selected in partnership with FECOFUN (Federation of Community Foresty Users Nepal) to promote the infiltration of rainwater and to ensure better soil maintenance.


It's time to take stock of the "De terre et de pluie" project, which is completing its first year of implementation, which has been particularly eventful!

Yancoba (CTA) and the agroforestry farmers did not skimp on efforts and adaptation strategies to carry out the agroforestry campaign despite the many difficulties related to the sanitary context and the delay of the rains.

After a week of mission rich in meetings, discoveries and exchanges with local actors, agroforestry farmers and...


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In search of the blue gold

by Marine Protte-Rieg | 5 January 2021
Image In search of the blue gold

Faced with demographic growth and the future amplification of climate change and health crises, rainwater is more than ever a precious resource for the sahelian rural populations. Channeling, collecting and storing this ephemeral "blue gold" becomes vital, to guarantee the fragile balance between the different uses of water, which tend to cause more conflicts each year.

In collaboration with the Water Harvesting Lab of Florence Univesity (Italy), APAF Senegal and local stakeholders,...


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Image For participatory and inclusive territorial planning: results of the assessment (Fatick, Senegal)

The observation, identification and participatory analysis of the natural ressources degradation dynamics are at the heart of the ecosystem approach and nature-based solutions, supported by IRHA as part of its interventions and advocacy.

In the “Rain, Forest and People” project area (Fatick department, Senegal), IRHA and APAF Senegal have carried out, in close collaboration with local actors, a retrospective and multi-scale territorial diagnosis on the historical and anthropogenic...


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Harvesting "blue gold"

by Marine Protte-Rieg | 23 August 2020
Visite effectuée auprès des bénéficiaires du village de Soudiane Thiélème (commune de Djilasse, département de Fatick). A gauche de la calabash : Abdoulaye Gadiaga, Conseiller en techniques agroforestières du projet « La pluie, la forêt et les Hommes ». A droite : Mansour Ndiaye, directeur exécutif d’APAF Sénégal.

Two months after the beginning of a generous monsoon season in the “Rain, Forest and People” project area, the APAF Senegal team visited households which benefited from the construction of a Calabash in June 2020. The purpose of the visit was to check the quality of the new constructions and to measure the water level in the tanks.

The team was very much welcome by the selected families. The latter were fully satisfied and happy with their new rainwater harvesting system. According to...


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Mission completed for the IRHA Senegal team!

After ten intensive days of data collection in Keur Maba Diakhou Bamunicipality (Kaolack region), it is time to handover to the APAF Senegal team for agroforestry nurseries monitoring, in the five beneficiary villages of #ofeathandrain project!

Huge thanks to Yancoba Sall Diene, advisor in agroforestry techniques of the area and Mr. Dramé, agroforestry farmer from Mandera, teacher at high school and very committed eco-citizen, for their...


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Rachel Hosein Nisbet (RHN): How did you come to work with APAF Senegal?

Mansour Ndiaye (MN): I am a farmer’s son. After studying agronomy, I spent 23 years working in industrial agriculture. Since 1945, Senegal has grown peanuts as a monoculture crop, to supply France. I saw forests felled and chemical fertilizers and pesticides added to newly ploughed fields. But farmers’ yields still dropped. After witnessing the harm done to farmers and topsoil by industrial agriculture, I became...


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Thirty-five farmers in Senegal’s Fatick-Thiès region are ready to harvest rain! In late May, IRHA’s Florian Biesler travelled to Senegal with our director, Marc Sylvestre, to kick off the project’s calabash construction. These rainwater reservoirs will provide the first volley of farmers participating in the 'Rain, Forests, People’ agroforestry project with the means of storing harvested rainwater. This resource will provide drinking water for their families, even at the end of the...


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Field Notes from Florian Bielser

by Florian Biesler (trans. R. Nisbet) | 1 July 2019

Florian Bielser is a twenty-six-year-old MSc student of environmental engineering at the EPFL, Switzerland. He is currently on placement as an IRHA field manager. Here’s an edited translation of his Senegalese Field Journal:

Boyard N’diodiom, 25.06.2019

Marc and I arrived in Dakar at dusk on the 24th of May. Our short night’s sleep, followed by a bus journey, left me feeling groggy as we visited IRHA Blue Schools in Senegal’s main peanut processing and trading centre, Kaolack. But...


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Working with committees in seven villages located in the Fatick-Thiès region of Senegal, we have now selected thirty-five local farmers, who we will train and assist in building agroforestry parcels on their land. A further seven villages will be identified in 2020, and another cohort of approximately thirty five farmers will be selected, trained and assisted to develop agroforestry parcels. The village meetings of spring 2019 took place in school classrooms, in village squares under...


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Senegal’s rural communities live in rapidly changing natural environments. 22 % of Senegalese (13 million people) inhabit areas where soil fertility has been dramatically reduced in the past three decades, mainly through water erosion.[1] Located in Sub-Saharan Africa, the country’s grasslands increasingly experience annual bushfires, compounding the erosion of their soils. Additionally, between 2001 and 2009, the area of cropland increased by 175 %, with large areas of this zone...


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