Construction and Economic Evaluation of Small Water-Saving Farmland Water Conservancy

Abstract

Small farmland irrigation and water conservancy facilities form an important part of the county-level agricultural infrastructure and one of the key factors that affect agricultural production. The paper takes the Jiyang County in Shandong Province as a case to explain ways to address water shortage and underdeveloped small farmland irrigation and water conservancy utilizing dedicated investment to construct small water-saving farmland irrigation and water conservancy projects. In the 2011 project, 9 pumping stations will be built and 9 low-pressure pipeline irrigation systems will be deployed, with a total of 6,204m3/h designed pumping capacity and 450KW installed capacity that cover an irrigation area of 18,200mu. After completion of the project, the whole county’s effective irrigation area, water-saving irrigation area, efficient water-saving irrigation area, irrigation water efficiency and the overall grain production capacity will be increased significantly with improved benefits from increased yield, saved land, reduced labor and improved water efficiency. The national economic evaluation shows that the project is feasible. The construction of small water-saving farmland irrigation and water conservancy projects is, to certain extent, typical and universal, and can be referred to by the counties, municipalities and district elsewhere across the country in their respective efforts in small farmland irrigation and water conservancy constructions. Therefore, the project is worth recommending.