The Gambella wetland straddles the arid border of Isiolo and Meru Counties in northern Kenya, serving as a critical life spring for a landscape frequently pushed to the ecological edge. The river downstream from Gambella relies on two primary lifelines: the Nyambene River and natural subterranean springs within the wetland core. For over ten consecutive years, however, this lifeline was severed; water had completely stopped flowing from the wetland to downstream users during the dry seasons.

Above the wetland, sections of the Nyambene River had become degraded and characterized by bare rock, pebbles, and fractured topsoil swept away by previous storms. Excessive water abstraction and intense agricultural encroachment directly into the fragile riparian zones left little to no water for downstream pastoralists. At the wetland’s core, intensive farming, unplanned grazing, and direct watering of livestock systematically depleted the sponge-like ecosystem. By 2013, the water flow stopped altogether.

Today, the narrative has fundamentally shifted. Even under the immense pressure of prolonged dry seasons and erratic weather anomalies, the Gambella wetland is holding on resiliently. Continuous, year-round water flow returned in 2024, just two years into an intensive restoration drive steered by local communities and institutional partners. Government agencies including the National Land Commission (NLC), National Environment Management Authority (NEMA), Kenya Forest Service, and Water Resources Authority (WRA) joined the Centre for Training and Integrated Research in ASAL Development (CETRAD), the Wyss Academy for Nature and other organizations to steer the intensive processes and support with technical and financial resources.

The wetland is now discharging water consistently, carrying life-giving surface flow roughly six kilometres beyond its core. This rapid ecological turnaround was achieved through targeted, landscape-level engineering and community mobilization:

• Demarcation and Legal Protection: The wetland core was officially demarcated and gazetted as public land, permanently removing disruptive human and agricultural activities from the core.

• Targeted Indigenous Tree Planting: Community members engaged in massive reforestation campaigns, replanting 6,000 site-specific indigenous tree species to replace the lost forest canopy. These trees act as natural anchors, stabilizing the soil, reducing evaporation, and facilitating deep groundwater recharge.

• Infrastructure Relocation: To ensure that people, livestock, and wildlife retained vital water access without trampling the recovering ecosystem, water storage, piping infrastructure, and designated watering troughs were constructed entirely outside the protected core.

Today, water flowing from the restored wetland serves pastoralists migrating from as far as 15 kilometres away. Domestic water users who once spent many hours looking for scarce water now access clean water at designated distribution points and along the downstream river channel.

“Our children are attending school regularly now,” notes Leah Nasike, a community member from Atir village. “Previously, we would send them for hours to look for water. This left little time for school.”

While scientists continue to collect hydrological data to establish long-term empirical evidence, the visual indicators tell the story of recovery. At the wetland core, the indigenous trees planted at the start of the drive have matured into a thick, protective canopy. Wetland flora like reeds and native grasses have rapidly regenerated, creating a sanctuary for returning wildlife. Camera traps deployed across the zone have documented the return of apex predators and large mammals, capturing images of elephants, hyenas, leopards, and serval cats navigating a habitat they had abandoned for a decade.

To ensure these hard-won ecological gains are not lost, the local Water Resource Users Association (WRUA) and the Wetland Management Committee have instituted a polycentric governance model. Local scouts patrol the gazetted core daily to prevent illegal grazing incursions. To fund this community enforcement, a designated water manager collects nominal user fees from the infrastructure distribution points, creating a self-sustaining economy tied directly to conservation.

“When we saw that the water flow had returned, we felt the urgency of putting in place rules for managing the water, so we do not lose again. We mobilized all user communities to meetings where we consulted and agreed on the rules,” said Dabaso Boru, Chair of the Gambella Water Resource Users Association (WRUA).

Downstream in Atir village, the local water committee enforces strict water-rationing rules, limiting motorized pumping from the river to one farmer per day and prohibiting domestic laundering inside the river channel to preserve water quality for communities further down the river.

As Kenya celebrates Mazingira Day 2026, the success story emerging from the drylands of Gambella offers a profound example for national environmental policy. The late Nobel Peace Prize Laureate Prof. Wangari Maathai famously taught us that environmental restoration is never just about the physical act of putting a seedling into the ground. Rather, it is fundamentally about governance, equity, and who holds the power to decide what happens to a landscape. The communities of Gambella took that decision into their own hands, and the water is running again.

This achievement mirrors the core institutional objectives of CETRAD and the Wyss Academy for Nature. The mandate of the Wyss Academy’s East Africa Hub is to pilot scalable innovations where scientific data, community co-design, and solid legal frameworks converge to sustain both people and nature. By providing financial backing, facilitating technical expertise, and inter-agency and community coordination between Meru and Isiolo, CETRAD and the Wyss Academy have shown that community-driven stewardship is the ultimate foundation of climate change mitigation.

“Gambella’s self-driven governance processes, backed reliably by statutory laws, are absolutely critical for the long-term sustainability of this ecosystem,” emphasizes Dr. Boniface Kiteme, Director of CETRAD. “Our overriding objective is to facilitate these communities to not only restore the physical landscape but to guarantee that the ecosystem continues to robustly serve both human livelihoods and biodiversity over generations.”

As millions of citizens across the country mobilize this weekend to plant trees toward Kenya’s ambitious national target of 15 billion trees by 2032, Gambella stands as a reminder of what ‘doing it right’ looks like. A seedling is merely an initial input. The true measure of environmental restoration lies in the long-term protection of that seedling, the restoration of the overarching water-catchment functions, and the empowerment of local committees to manage the resource.

While the mid-October rains approach, the Atir community is preparing for the next phase: planting of additional indigenous trees along the fragile riverbanks and launching localized fodder production. CETRAD and the Wyss Academy urge conservation partners and communities nationwide to look beyond the single day of planting on Mazingira Day.

Article written by Amanda Koech & Beverline Isaboke