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© 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

Abstract

El Niño and La Niña Southern Oscillation (ENSO) are major drivers that affect climatic variables in many countries. Therefore, ENSO mediated variation in climatic factors have significant consequences for crop production. We studied ENSO mediated variations in temperature and rainfall in the five coastal districts of Bangladesh during 1951–2017, and the impacts on major crops production were analyzed using growing degree day (GDD) index. Statistical analyses were performed on different climatic parameters in relation to ENSO events and locations. Results indicate that ENSO events had significant influence on monthly, seasonal and annual temperature and rainfall amounts (p < 0.05). Specifically, maximum temperature under ENSO phases were higher during Kharif-I and Kharif-II seasons than neutral years. In contrast, the minimum temperature was higher in neutral years than ENSO events during Rabi season. Averaged across stations, annual mean maximum temperature was 0.5 and 0.23 °C higher during El Niño and La Niña compared to neutral years. Rainfall was higher during neutral years compared to El Niño and La Niña. These changes in seasonal temperature variably changed crop GDD in different locations and thus, crop growth duration and crop yield. Therefore, this study provides a general understanding to ENSO mediated impacts on coastal agriculture in Bangladesh.

Details

Title
Remote Impacts from El Niño and La Niña on Climate Variables and Major Crops Production in Coastal Bangladesh
Author
Sattar, Md Abdus 1   VIAFID ORCID Logo  ; Shamim Mia 2   VIAFID ORCID Logo  ; Afroza Akter Shanta 1 ; A K M Abdul Ahad Biswas 1 ; Fulco Ludwig 3 

 Department of Disaster Risk Management, Patuakhali Science and Technology University, Patuakhali 8602, Bangladesh; [email protected] (A.A.S.); [email protected] (A.K.M.A.A.B.) 
 Department of Agronomy, Patuakhali Science and Technology University, Patuakhali 8602, Bangladesh; [email protected] 
 Department of Environmental Sciences, Wageningen University, 6700 AA Wageningen, The Netherlands; [email protected] 
First page
1449
Publication year
2021
Publication date
2021
Publisher
MDPI AG
e-ISSN
20734433
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2601998902
Copyright
© 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.