Overview
Chahi sub-catchment is found in Kisoro district, South Western Uganda. Chahi sub-catchment lies at an approximate altitude of 1,981 m above sea level. Geographically it is bounded by longitudes 29°40’ and 29°50’ East and latitudes 1°15’ and 1°05’ South. The catchment is located in the southern part of Kisoro district.

The area is characterized with high population which is 16,457 people with a population density of 324 persons per square kilometre and an annual population growth rate estimated at 2.8% (Cornelius, et al., 2008). The climate of Chahi sub-catchment is sub-humid with a mean annual rainfall of 1100mm. It experiences minimum and maximum temperatures of 100c and 260c respectively. The rainfall pattern is bimodal with peaks during long rains during March-May and short rains during September-December (Kisoro District Local Government, 2008). Most soils in the catchment are volcanic andosols which are relatively fertile and porous in nature but susceptible to extreme soil erosion from any drop of rainfall (FARA, 2009). This catchment drains into Lake Mulehe. Like in most parts of Uganda, agriculture is the major economic activity of Chahi sub-catchment and main source of income for the population employing 90% of the total working population. Majority of the population practice subsistence farming with hardly any disposable income. Crops grown include; maize, sorghum, Irish potatoes, sweet potatoes, cabbages, beans, onions and tomatoes. Livestock is kept by some people on a subsistence level.

Bufundi Water Catchment is geographically located in Kabale district, and located between 1014’S and 1026’S latitudes and 29048’E and 290 55’E longitudes and it covers an area of up to 20 square kilometers. The terrain is dominated by hills and valleys ranging between 12 to 50% but some as great as 80% (FARA, 2009). Bufundi has a bimodal rainfall pattern that provides opportunity for two cropping seasons in a year. The “long rains” occur in mid-February and June while the “short rains” occur from mid-September to mid-December. The average annual rainfall in the catchment varies between 900 mm to 2200 mm with a mean annual temperature of 16.7ºc.Soils are volcanic andosols which are relatively fertile in but susceptable to extereme soil erosion (FARA, 2009). This catchment drains various small streams and rivers into Lake Bunyonyi. The soils in the catchment are volcanic andosols which are relatively fertile in nature but susceptable to extereme soil erosion from any drop of rainfall (FARA, 2008). This catchment is drained by various water sources including small aquifers, various small streams and rivers  that flow in the valley bottom wetland and drain into Lake Bunyonyi. Land in this catchment is scarce as a result of over population and land fragmentation, among the most land use practices is crop farming, livestock, pastures, woodlots under eucalyptus as well as limited agro forestry. Despite the small size holdings, farmers in the catchment tend to grow a number of crops important among them are potatos, beans, and sorghum, though grown on small areas other cops of high importance are sweet potatos, maize and a number of vegetables like  cabbages and carrots.