Kalu Ganga

The Kalu Ganga is a Sri Lankan river. The river begins in Sri Padhaya and runs for 129 kilometers (80 miles) before reaching the sea at Kalutara. It is one of the longest rivers in Sri Lanka. The Ratnapura and Kalutara Districts, as well as the city of Ratnapura, are crossed by the Black River. The river's main sources of water are the Central Province's hilly forests and the Sinharaja Forest Reserve.

The Kalu Ganga basin is one of Sri Lanka's most important river basins, receiving heavy rainfall and high discharges. The lower flood plain is subject to regular flooding as a result of its hydrological and topographical characteristics, which has a significant impact on the socioeconomic profile. Many experts have looked into climatic changes in the country's major river basins in recent years, but none have looked at climatic changes in the Kalu Ganga basin. As a result, the goal of this research was to look into precipitation trends in the Kalu Ganga basin.

The Kalu Ganga rises at an altitude of 2250 meters in the wet zone's central hills, collects rainwater on the western slopes, and flows 129 kilometers to the sea at Kalutara. The upper section of the basin features severe grades, whereas the lower part has modest gradients. The river basin's lower flood plain is subjected to regular flooding during the Southwest monsoon season as a result of these hydrological and physical factors. As a result, because the lower flood plain of Kalu Ganga is heavily populated and a prospective rice production area, the socio-economic profile is greatly harmed.

Length: 129 kilometers (80 miles)