This chapter aims to describe and clarify the present irrigation and drainage management system and the actual water distribution and farmer behavior in the delta using case studies conducted at several sites in the middle delta covering the field, on-farm and basin levels. Using these cases, the chapter will clarify the differences in water management between paddy and non-paddy areas, the upstream-downstream problems, and the comparison between the traditional and improved systems. This chapter also describes the movement of water and salt at both the basin and field levels. Through elucidating the realities of water management, this chapter will provide information on the special characteristics of water management of the delta. It is necessary to account for these characteristics in order to understand the expected impacts of water conservation actions on the water management in the delta.
All Science Journal Classification (ASJC) codes
- Environmental Science(all)
- Earth and Planetary Sciences(all)
- Economics, Econometrics and Finance(all)
- Business, Management and Accounting(all)