岡山大学環境理工学部研究報告 ISSN 2187-6940
Published by Faculty of Environmental Science and Technology, Okayama University

<Availability>
Some items are not available because of decision by its author or publisher.

The classification of water shortage degree of irrigated plot area in command area by LP technique, Hiikawa-karyu irrigation project, Japan

Kidtimonton Surasri
Mitsuno, Toru
Abstract
Two optimization models are formulated based on different objectives for assisting the irrigation planner in making decision on agricultural planning during drought year. The sensitive degree of water shortage area in the irrigation project are classified by those models. They are solved by simplex method. Firstly, the Two-phase method is applied to analyze the artificial variables in the formulated model. Then, the formulated model is modified after getting rid of the artificial variables to obtain the feasible solution. The agricultural planning is planned by considering the classified area with social equity and economic improvement. Crop diversification is introduced to conduct in the very sensitive water shortage area and intermittent irrigation system is introduced to operate in the moderately sensitive water shortage area. The integrated farming system, the separation of land owner and cultivator and the disposition of substitute lots system are also suggested to conduct in this study project.
Keywords
agricultural planning
Two-phase method
integrated farming
sensitive water shortage
disposition of substitute lots system
ISSN
1341-9099
NCID
AN10529213