Irrigation To Meet Growing Food Demand With
Climate Change, Salinity And Water Trade
Author(s)
J. Connor, K. Schwabe & D. King
Abstract
There is increasing demand for water due to rising world population and wealth.
This, coupled with lower supplies of freshwater due to possible climate change,
suggests further stress on an already over-allocated resource. Additionally,
environmental concerns relating to low flow levels, and salinity may exacerbate
the ability of irrigated agricultural regions to increase agricultural production.
The objective of this research is to investigate the potential impacts of climate
change induced water scarcity on irrigated agricultural productivity, water
demand, and profitability. The extent to which output capacity is constrained by
rising salinity levels and institutional regulating water trade are evaluated for a
River Murray, Australia case study.
Keywords: irrigated agriculture, salinity, climate change, water scarcity.
1 Introduction
Recent trends in population growth, forecasting an average of nearly a billion
more people every decade, suggest commensurate increases in food production
will be required to meet future global demands. While the largest increases in
food demand will occur in developing countries due to increases in both
populations and daily calorie intake, the agricultural lands most capable of
meeting these increases are likely to be located in developed countries,
particularly the United States, with a sizeable increase in exports from Australia
and Eastern Europe also likely (Anderson et al. [1]).
Given that the productivity of irrigated land is nearly three times greater than
that of rain-fed land, significant increases in food production will most likely be
met by expansion and intensification of irrigation, which currently produces over
Keywords
irrigated agriculture, salinity, climate change, water scarcity.
Related Book
Other papers in this volume
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