river management; paddy field; hydraulic structure; irrigation development
Abstract :
[en] Pursat River, one of the tributaries, flows into the Great Lake Tonle Sap, located in Pursat province, 187 km from Phnom Penh. Pursat River originates in Kbal Kmaoch Mountain at an elevation of 1,425m. The main stream joins with Prey Khlong River and Arai River which originate in Orall Mountain at the elevation of 1,813m, the highest mountain in Cambodia.
Large of paddy field in the province is irrigated by the river. The lack of year round management of irrigation system along the river is a serious constraint to social and economic development, and poverty reduction in the province.
The objective of the research is to discover the appropriate way to develop the irrigation system along the river. The study attempts to uncover the historical development of the river and water use along the river. The research also reveals the appropriate way to put the right system to the right place.
The analysis will review the estimation of river flow and total annual flow, an amount of water to be withdrawn from the river, which will be simulated based on meteorological and hydrologic data, and field investigation.
