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Quantifying the response of cotton production in eastern Australia to climate change

Williams, Allyson and White, Neil and Mushtaq, Shahbaz and Cockfield, Geoff and Power, Brendan and Kouadio, Louis (2015) Quantifying the response of cotton production in eastern Australia to climate change. Climatic Change, 129 (1). pp. 183-196. ISSN 0165-0009

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Article Link(s): http://dx.doi.org/10.1007/s10584-014-1305-y

Abstract

Abstract The paper evaluates the effect of future climate change (as per the CSIRO Mk3.5 A1FI future climate projection) on cotton yield in Southern Queensland and Northern NSW, eastern Australia by using of the biophysical simulation model APSIM (Agricultural Production Systems sIMulator). The simulations of cotton production show that changes in the influential meteorological parameters caused by climate change would lead to decreased future cotton yields without the effect of CO2 fertilisation. By 2050 the yields would decrease by 17 %. Including the effects of CO2 fertilisation ameliorates the effect of decreased water availability and yields increase by 5.9 % by 2030, but then decrease by 3.6 % in 2050.
Importantly, it was necessary to increase irrigation amounts by almost 50 % to maintain adequate soil moisture levels. The effect of CO2 was found to have an important positive impact of the yield in spite of deleterious climate change. This implies that the physiological response of plants to climate change needs to be thoroughly understood to avoid making erroneous projections of yield and potentially stifling investment or increasing risk.

Item Type:Article
Business groups:Horticulture and Forestry Science
Additional Information:Climatic Change
Subjects:Agriculture > Agriculture (General) > Agricultural meteorology. Crops and climate
Plant culture > Field crops > Textile and fibre plants
Deposited On:20 Jan 2015 02:41
Last Modified:05 Oct 2016 06:33

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