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Climate change and the behaviour of meteorological drought and its impact on wheat yield |
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| รหัสดีโอไอ | |
| Creator | 1. Hasan Jamal Al-Bazaz 2. Omar M.A. Mahmood Agha |
| Title | Climate change and the behaviour of meteorological drought and its impact on wheat yield |
| Publisher | Faculty of Engineering, Khon Kaen University |
| Publication Year | 2567 |
| Journal Title | Engineering and Applied Science Research |
| Journal Vol. | 51 |
| Journal No. | 2 |
| Page no. | 248-258 |
| Keyword | Climate change, Drought, Trend analysis, Wheat, SPI, CZI |
| URL Website | https://ph01.tci-thaijo.org/index.php/easr/index |
| Website title | Engineering and Applied Science Research |
| ISSN | 2539-6161 |
| Abstract | Climate change is the most prominent issue in this decade. The expected impacts of this change have become a reality, with rising sea levels and long, intense heat waves occurring globally. The present study examines the characteristics of drought in Nineveh Governorate and its impact on the wheat crop. Two drought indices were used in the study: (1) the Standardised Precipitation Index (SPI) and (2) the Chinese Z Index (CZI). The study used climate data on rainfall and temperature for the period 1990–2020 from eight meteorological stations distributed in the study area. Results showed a nonsignificant decrease in rainfall and an increase in maximum and minimum temperatures. Results also showed that the highest recurrence rates of drought (recorded at the Tal-Abta) are 51.2% and 56% for SPI and CZI, whereas the lowest rates (recorded at Mosul, Sheikhan and Sinjar) are 45.1% and 50.8% for SPI and CZI, respectively. The two drought indices match in identifying wet and dry periods, with R2 values ranging from 0.84 to 0.94. Furthermore, a relationship was found between productivity and climatic drought indices and it was concluded that wheat productivity is more significantly influenced by the distribution of rainfall than by drought. The current study can help demonstrate the extent of climate change’s impacts on wheat productivity. Thus, the results can contribute to planning and managing agricultural production according to climate change. |
