EFFECT OF SOIL TYPE AND IRRIGATION SYSTEMS ON WHEAT YIELD LOSSES UNDER CLIMATE CHANGE: A REVIEW

Document Type : Research articles.

Authors

1 Water Requirements and Field Irrigation Research Department; Soils, Water, and Environment Research Institute; Agricultural Research Center; Egypt.

2 Central Laboratory for Experimental Design and Statistical Analysis; Agricultural Research Center; Egypt.

Abstract

Soil type and irrigation systems could play an important role in
determination of yield losses under climate change conditions. This
concept is tackled in this review, in order to shed a light on the
importance of developing a strategy to reduce climate change risk on
wheat. In recent years, global climate change models were introduced in
Egypt and have been used to develop climate change scenarios. They are
the only tools that could provide detailed regional predictions of future
climate change. Two scenarios (A2 and B2) were developed and used to
predict the effect climate change on the yield of wheat. Wheat was
grown in eight sits in Egypt. CropSyst model was calibrated and
validated for wheat and the two climate change scenarios were
incorporated in the model. The model was run and the effect of climate
change was assessed. The results revealed that the yield of wheat will be
reduced under climate change. The percentage of yield reduction depend
upon the location of the experimental site, soil type and irrigation
system. High yield losses could occur in the Middle of Egypt, compared
with the North of Egypt. Furthermore, growing of these crops in sandy
soil and under surface irrigation will increase yield losses. Therefore, the
best way to adapt to some uncertain future climate is to improve
adaptation to present day climate variability and reduce vulnerability to
extreme events.

Keywords

Fayoum Journal of Agricultural Research and Development
Volume 27, Issue 1
January 2013
Pages 83-94

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