E3S Web Conf.
Volume 37, 2018The Sixth International Congress “Water, Waste and Environment” (EDE6-2017)
|Number of page(s)||7|
|Published online||25 May 2018|
Climate Change Impact on Rainfall: How will Threaten Wheat Yield?
Geosciences, Patrimony useful Substances lab, Department of Geology, Faculty of Sciences, UMI - Meknes, Morocco
2 Regional Center for Agricultural Research - URGDRNESR, Meknes, Morocco
* Corresponding author: firstname.lastname@example.org;
Climate change has a significant impact on the environmental condition of the agricultural region. Meknes has an agrarian economy and wheat production is of paramount importance. As most arable area are under rainfed system, Meknes is one of the sensitive regions to rainfall variability and consequently to climate change. Therefore, the use of changes in rainfall is vital for detecting the influence of climate system on agricultural productivity. This article identifies rainfall temporal variability and its impact on wheat yields. We used monthly rainfall records for three decades and wheat yields records of fifteen years. Rainfall variability is assessed utilizing the precipitation concentration index and the variation coefficient. The association between wheat yields and cumulative rainfall amounts of different scales was calculated based on a regression model. The analysis shown moderate seasonal and irregular annual rainfall distribution. Yields fluctuated from 210 to 4500 Kg/ha with 52% of coefficient of variation. The correlation results shows that wheat yields are strongly correlated with rainfall of the period January to March. This investigation concluded that climate change is altering wheat yield and it is crucial to adept the necessary adaptation to challenge the risk.
Key words: Climate change / wheat yield / rainfall variability / precipitation / concentration index.
© The Authors, published by EDP Sciences, 2018
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (http://creativecommons.org/licenses/by/4.0/).
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