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71

The marshlands are the most physically and chemically

heterogeneous of all aquatic ecosystems in Rwanda.

They are seasonal wetlands. The water table is near or

above the lowest ground surface during the wet season

and the floodplains are generally narrow (less than

200 m wide) or fairly short in length (REMA 2011). The

most recent inventory of wetlands conducted in 2008

by the Rwanda Environment Management Authority,

showed that Rwanda has 860 marshlands covering

an area of 278,536 ha (10.6 per cent of the country’s

surface area) and 101 lakes covering a total of 149,487

ha (REMA 2011). The biggest marshlands are clustered

around the rivers. The Rugezi and Kamiranzovu

wetlands are high altitude wetlands; most of the others

are at low altitude.

Over recent years, enormous pressure has been exerted

on the water and wetland resources of Rwanda through

a variety of emerging and increasing uses driven

by the growing population. Some of these threats

include agricultural intensification, pollution, invasive

species, overuse and an inadequate institutional

framework to manage the wetlands. Some of these

threats have affected both the quantity and quality of

the water supply. Climate change is also contributing

to degradation of swamps. With decreasing amounts

of rainfall, the hydrological regime of wetlands is

increasingly under threat.

Rwanda’s Marshlands

Rwandanmarshlands

Bugesera marshes along the Nyabarongo River