Although the Ganges River Basin (GRB) has abundant water resources, the seasonal monsoon causes a mismatch in water supply and demand, which creates severe water-related challenges for the people living in the basin, the rapidly growing economy and the environment. Addressing these increasing challenges will depend on how people manage the basin’s groundwater resources, on which the reliance will increase further due to limited prospects for additional surface storage development.

This paper presents a Benchmark Basin initiative which was proposed in IWMI's Strategic Plan 2001-2005 as an approach to understand and beneficially influence water resources development in selected basins in a variety of agro-ecological zones.The initial task represented by this workshop is to conduct a dialogue among partners and stakeholders in the Ruhuna Basin,Sri Lanka. A major objective is to identify these issues and research and also development activities considered to be of highest priority to partners and stakeholders.

The Ganges River Basin may have a major pending water crisis. Although the basin has abundant surface water and groundwater resources, the seasonal monsoon causes a mismatch between supply and demand as well as flooding. Water availability and flood potential is high during the 3–4 months of the monsoon season. Yet, the highest demands occur during the 8–9 months of the non-monsoon period. Addressing this mismatch requires substantial additional storage for both flood reduction and improvements in water supply.

The hydrology of Holetta River and its seasonal variability is not fully studied. In addition to this, due to scarcity of the available surface water and increase in water demand for irrigation, the major users of the river are facing a challenge to allocate the available water. Therefore, the aim of this research was to investigate the water availability of Holetta River and to study the water management in the catchment. Soil and Water Assessment Tool (SWAT) modelled the rainfall runoff process of the catchment.

The purpose of this paper is to synthesize the available knowledge and lessons learned from past experiences in promoting kitchen or home gardens for food production, with a special emphasis on water management. The benefits of home gardens for better family nutrition, health status of children and mothers, and as an entry point for empowering women have been documented in some studies. However, there is very little specific evidence to confirm these benefits. The paper also reviews some of the water management practices and garden technologies used in home and market gardens.