Water demand and irrigation investment with reference to the proposed Rakaia Irrigation Scheme
Abstract
The objective of this study is to establish the economic demand
function for irrigation water in the area proposed as the Rakaia Irrigation
Scheme. The analysis is dominated by the limitations of the deterministic
approach used as the framework for the linear programming study. Data used
in the study were based on three separate sample surveys of the farmers in
the region and upon information supplied by consultants and scientists whose
knowledge was appropriate. In the first chapter the consequences of using a deterministic or stochastic seasonal construct with which to examine the derived demand for irrigation water within a region is examined. The first section of the
second chapter describes the productive characteristics of the region before
irrigation development. Succeeding sections are devoted to the development of the integer linear programming model which was used to derive the demand
function by sequential optimisations, problems in the execution of the
programming analysis, the results of the analysis and an analysis of
factors which have important effects on the temporal transition rate from
dryland to irrigation. The last section of Chapter Two is devoted to an
examination of a monetary mechanism which is shown to have an important
inflationary effect. The implications of the effect for irrigation
development and for national policies are discussed.
Finally in Chapter three, two institutional matters of particular
concern for irrigation development are discussed; the first concerns the
method of pricing water for irrigation schemes and the second some particular
problems in the present legislation affecting the appeal provisions necessary
to ensure that social welfare is maximised when public funds are invested in
large scale irrigation projects.... [Show full abstract]
Keywords
irrigation; irrigation schemes; water pricing; water resources; irrigation investment; Rakaia Irrigation SchemeFields of Research
079901 Agricultural Hydrology (Drainage, Flooding, Irrigation, Quality, etc.); 140201 Agricultural EconomicsDate
1979Type
ThesisAccess Rights
Digital thesis can be viewed by current staff and students of Lincoln University only. Print copy available for reading in Lincoln University Library.Collections
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