Danny23-bioenergy/yacouba-loop-simulation

A Python simulation of the Yacouba Loop — combining Zaï pits, biochar, and managed grazing to halt desertification in the Sahel. ## yacouba-loop-simulation A Python simulation of the Yacouba Loop — combining Zaï pits, biochar, and managed grazing to halt desertification in the Sahel. The Yacouba Loop Inspired by Yacouba Sawadogo written by Danny Nawa Muyunda ## Simulation of Integrated Land Restoration & Biochar Systems This project is a simulation modeling the synergy between traditional African wisdom and modern bioenergy technology. It demonstrates how managed grazing, strategic grass planting, and Zaï pits — enhanced by biochar from mobile solar-powered pyrolysis kilns that can fit on a vehicle (Toyota cruiser 70 series, Nissan, Land rover — can halt desertification and restore village ecosystems. --- ## The Problem The Sahara Desert expands at a rate of 48km per year, swallowing fertile land and disrupting the global climate. - **Displacement:** In 2022 alone, roughly 2.6 million people were displaced by Saharan expansion. - **Conflict:** The loss of arable land fuels clashes between farmers and herders over dwindling resources. - **Causes:** A mix of natural cycles (Orbital Precession) and human impact (58% due to overgrazing, deforestation, and unsustainable deep-plowing). --- ## 💡 The Solution The Yacouba Loop creates a self-sustaining cycle of fertility: 1. **Construction:** Digging Zaï pits (traditional water-harvesting basins) to trap runoff. 2. **Soil Loading:** Adding biochar to the pits to increase water retention and nutrient storage. 3. **Revegetation:** Planting a strategic mix of native grasses: - *Cenchrus biflorus* (Cram-cram) — feeds the animals - *Chrysopogon zizanioides* (Vetiver) — protects the Zaï pits - *Panicum turgidum* (Afezu) — acts as the natural anchor 4. **Managed Grazing:** Allowing livestock to graze in a controlled manner, providing the manure needed for the next cycle of biochar. The manure is mixed with local biomass and converted to biochar using solar thermal energy. --- ## 🛠️ Conceptual Design: Mobile Solar Pyrolysis Kiln A low-cost, field- …