Effect of Reservoir Hedging on Crop Yield Under Deficit Irrigation Conditions

by Arathi T. Seshan,
K. Srinivasan,



Document Type: Proceeding Paper

Part of: North American Water and Environment Congress & Destructive Water

Abstract:

In case of irrigation projects, irrigation scheduling at the field has a direct bearing on yield crops. Hence, the various reservoir operating policies considered have to be evaluated based on crop yield, before selecting the policy to be adopted. Keeping this in view, the effects of hedging on crop yield are investigated in this paper, considering a wide range of hedged operating policies at the reservoir level. At the field level, the objective is to maximise the sum of the relative yields of all crops considered. The allocation of water to crops in the field is determined by dynamic programming, in which soil moisture contribution is accounted. The case example taken up for the study is the Malaprabha reservoir project in Southern India, which is drought-prone.

Subject Headings: Crops | Reservoirs | Irrigation | Soil water | Case studies | Water shortage | Project management | India | Asia

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