irrigation management transfer to farmers is one of the important and necessary issues for irrigation planners globally. irrigation management transfer or participatory irrigation management by water users’ associations (wua) is a widespread strategy in the world and a good way to remove the country's irrigation and drainage systems problems. the main objective of this research was respons...

When categorizing water management alternatives, to meet water needs, water transfer is seen as an option that tends to supply more water. Most developing countries where limited water resources are available with high spatiotemporal dispersion, favor this option. The numbers of such projects that have been proposed, implemented, and operated in recent years evidence the desirability of this al...

Establishing satisfactory estimation methods of lake evaporation has been crucial vital for research and management of water resources and ecosystems. Determining the accurate method to estimate evaporation from reservoirs in the investigation and management of water resources is very important. Hence, in this study eight empirical methods such as; Makkink, DeBruin-Kejiman, Penman, Priestley-Ta...

Establishing satisfactory estimation methods of lake evaporation has been crucial vital for research and management of water resources and ecosystems. Determining the accurate method to estimate evaporation from reservoirs in the investigation and management of water resources is very important. Hence, in this study eight empirical methods such as; Makkink, DeBruin-Kejiman, Penman, Priestley-Ta...

Farmers’ participation in the maintenance and operation of water facilities has a positive impact on their attitude and internal trends and incentives to have closer cooperation with Regional Water Organization. The transfer of irrigation management to farmers enhances the productivity of water facilities and ultimately, results in efficient water use in agriculture. In order to evaluate the ef...

In large countries with sharp temporal and spatial variation in water resources, interbasin water transfer projects seem to be an ultimate solution to ease water shortage and secure a balanced economic development among different regions. However, such projects are prone to problems and controversies, and may challenge the established basin management, legal system and policy making procedure w...

conclusions unless there are well-thought out strategies for minimizing the undesirable impact on the environment, it is not advisable that such projects be permitted. results the results showed that the negative environmental and social impacts of the project outweighed the positive impacts in terms of type, number, and intensity. materials and methods a checklist containing the positive, nega...

the purpose of this study was to investigate the challenges of agricultural water management from farmers’ viewpoint. the statistical population consisted of 5297 farmers in karaj county. a total number of 142 farmers were selected applying cochran’s formula. the sample was drawn using stratified sampling method with proportional allocation. to collect data, a questionnaire was developed. to en...

Water is an indispensable resource for human life and social economic development. But Oswaldo de Rivero (2003) notes that ninety-seven percent of all water on the planet salty, only 3% fresh three-quarters it concentrated in inaccessible places such as polar regions glaciers. Therefore, a small fraction earth's accessible rivers, lakes groundwater. According to international hydrological studi...