Rethinking Water Scarcity: The Role of Land Management in Africa

Water scarcity in Africa has traditionally been addressed through large-scale infrastructure projects such as dams, deep wells, and desalination plants. While these measures have provided short-term relief, they often overlook the underlying issue: the rapid runoff of rainwater due to degraded land and vegetation. Healthy landscapes naturally absorb and slowly release water, but degraded areas lead to immediate runoff, erosion, and flooding, reducing groundwater recharge.

This situation is not solely a climatic issue but a result of land-use decisions that have prioritized infrastructure over the maintenance of soils and local hydrological cycles. Centralized systems have often replaced local practices that managed water through dispersion rather than concentration. Consequently, increasing investments are needed to compensate for territories that no longer retain water effectively, turning water insecurity into a persistent management challenge.

Addressing this issue requires recognizing the limitations of technological solutions. While infrastructure like desalination plants and inter-basin transfers can supply water, they do not restore the conditions necessary for sustainable water availability. Rehydrating degraded territories through soil restoration, vegetation recovery, and landscape-scale water retention can reduce flood risks, strengthen food systems, lower energy dependence, and stabilize rural livelihoods. These benefits, though often overlooked in conventional cost–benefit analyses, are crucial for long-term social and ecological stability.

Restoring hydrological cycles involves governance challenges, including decisions on land use, recognition of diverse knowledge systems, and the time horizons guiding public investment. Effective coordination across ministries, legal frameworks that protect long-term ecological processes, and valuing local and traditional practices are essential. The state's role should focus on redefining success metrics to include risk reduction and system stabilization, rather than solely measuring infrastructure outputs.

Ultimately, water sovereignty extends beyond infrastructure. It encompasses a society's ability to maintain the ecological conditions that allow water to remain where it falls, circulate locally, and support life over time. Addressing water scarcity requires confronting structural realities and recognizing that it is fundamentally a management issue, not just a technical one.