Climate change in south-west Australia and north-west China: challenges and opportunities for crop production
By N. Turner, Nicholas A. D. Molyneux, Sen Yang, Y. Xiong, Kadambot H. M. Siddique. 2011
99 citations recorded by the source corpus.
Predictions from climate simulation models suggest that by 2050 mean temperatures on the Loess Plateau of China will increase by 2.5 to 3.75°C, while those in the cropping region of south-west Australia will increase by 1.25 to 1.75°C. By 2050, rainfall is not expected to change on the Loess Plateau of China, while in south-west Australia rainfall is predicted to decrease by 20 to 60 mm. The frequency of heat waves and dry spells is predicted to increase in both regions. The implications of rising temperatures are an acceleration of crop phenology and a reduction in crop yields, greater risk of reproductive failure from extreme temperatures, and greater risk of crop failure. The reduction in yield from increased phenological development can be countered by selecting longer-season cultivars and taking advantage of warmer minimum temperatures and reduced frost risk to plant earlier than with current temperatures. Breeding for tolerance of extreme temperatures will be necessary to counter the increased frequency of extreme temperatures, while a greater emphasis on breeding for increased drought resistance and precipitation-use efficiency will lessen the impact of reduced rainfall. Management options likely to be adopted in south-west Australia include the introduction of drought-tolerant perennial fodder species and shifting cropping to higher-rainfall areas. On the Loess Plateau of China, food security is paramount so that an increased area of heat-tolerant and high-yielding maize, mulching with residues and plastic film, better weed and pest control and strategic use of supplemental irrigation to improve rainfall-use efficiency are likely to be adopted.
Subfields: Ecology, Evolution, Behavior and Systematics, Forestry, Global and Planetary Change
View Paper: https://www.semanticscholar.org/paper/fc48233f2ddae0d3fd22a31126b41ce5b90ce056
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In Ecology, Evolution, Behavior and Systematics
In Global and Planetary Change
Citations in the corpus
- Impacts of recent climate warming, cultivar changes, and crop management on winter wheat phenology across the Loess Plateau of China (2015, background): “Additionally, extreme events like droughts ave become more frequent across the LP (Turner et al., 2011). rop phenology would be accelerated with increasing temperature (Lobell et al., 2012).”
- Impact of future climate change on wheat production in relation to plant-available water capacity in a semiaridenvironment (2014, background): “…change impact studies in Australia conducted over the past years using biophysical process simulation models on wheat production (e.g., Wang and Connor 1996; Godden et al. 1998; van Ittersum et al. 2003; Luo et al. 2005; Anwar et al. 2007; Crimp et al. 2008; Howden et al. 2010; Turner et al. 2011).”