Impact of Climate Change on Maize Productivity in Khyber Pakhtunkhwa, Pakistan

Khan, Asim Ali; Shah, Syed Attaullah; Khan, Aftab Ahmad; Ullah, Raza

doi:10.17582/journal.sja/2019/35.2.594.601

Cited by 13 publications

(10 citation statements)

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“…The results agree with the research of (Ahmad et al 2020;Ali et al 2017;Sossou et al 2019;Zaied and Cheikh 2015). Khan et al (2019) explored that the maximum level of temperature has a negative influence on maize production while rainfall positively improves maize production in Pakistan. Area harvested is a leading factor in boosting up rice production in Turkey.…”

Section: Results Of Vecm-based Ganger Causality Tests For Model (I)supporting

confidence: 90%

Addressing the long- and short-run effects of climate change on major food crops production in Turkey

Chandio

Gökmenoğlu

Ahmad

2021

Environ Sci Pollut Res

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This study assessed the long-run (LR) and short-run (SR) impacts of climatic and non-climatic factors, i.e., CO 2 emissions (CO 2 e), average level of temperature (ALT), average level of precipitation (ALP), area harvested of wheat and rice crops (AHW and (AHR), domestic credit (DCR), and agricultural labor (ALB) on wheat and rice production (WP and RP) in Turkey by using annual time series data ranging from 1980 to 2016 and by employing several econometric techniques. The autoregressive distributed lag-bounds (ARDL) approach and the Johansen and Juselius cointegration (JJC) test confirmed a valid long-term connection among underlying variables. The estimation results from the ARDL model reveal that climatic factors such as CO 2 emissions and temperature adversely affected wheat production in the long run as well as in the short run, whereas precipitation positively improved wheat production in both periods. Further results indicate that non-climatic factors like area harvested of wheat and domestic credit positively and significantly enhanced wheat production in the long run and short run. Similarly, CO 2 emissions also adversely affected rice production in both periods, while temperature and precipitation positively contributed towards rice production in both cases. In addition, area harvested of rice positively and significantly boosted rice production in the long run as well as in the short run, while domestic credit negatively influenced rice production in the long run but in the short run positively improved rice production. Additionally, the outcomes of the VECM Granger Causality for both rice and wheat production confirm that both climatic and non-climatic variables have a strong influence on the production of both crops. This study found that climate change has a deleterious influence on both wheat and rice production; therefore, the study suggests that temperature-resistant varieties of both crops should be developed and introduced by agricultural research institutions. In addition to this, up-to-date information is more needed related to climate change, and in the farming communities, it should be provided by agricultural extension workers.

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Section: Results Of Vecm-based Ganger Causality Tests For Model (I)supporting

confidence: 90%

Addressing the long- and short-run effects of climate change on major food crops production in Turkey

Chandio

Gökmenoğlu

Ahmad

2021

Environ Sci Pollut Res

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“…The long-term coefficients of both temperature and rainfall show that a 1% increase in temperature and rainfall will increase CPD by about 0.07% and 0.10%. These results are similar to the results of Ammani et al (2013), Chandio et al (2020b), Guntukula (2020), Khan et al (2019) and Sossou et al (2020), who reported that average temperature and average rainfall have a significantly positive impact on CPD. On the other hand, Chandio et al (2020c), Khan et al (2019) and Warsame et al (2021) found that temperature has a negative effect on CPD.…”

Section: Empirical Results and Discussionsupporting

confidence: 90%

“…These results are similar to the results of Ammani et al (2013), Chandio et al (2020b), Guntukula (2020), Khan et al (2019) and Sossou et al (2020), who reported that average temperature and average rainfall have a significantly positive impact on CPD. On the other hand, Chandio et al (2020c), Khan et al (2019) and Warsame et al (2021) found that temperature has a negative effect on CPD. Similarly, CO 2 e has a significantly negative impact on it.…”

Section: Empirical Results and Discussionsupporting

confidence: 90%

Assessing the impacts of climate change on cereal production in Bangladesh: evidence from ARDL modeling approach

Chandio

Jiang

Fatima

et al. 2022

IJCCSM

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Purpose This study aims to examine the impacts of climate change (CC), measured average annual rainfall, average annual temperature and carbon dioxide (CO2e) on cereal production (CPD) in Bangladesh by using the annual dataset from 1988–2014, with the incorporation of cereal cropped area (CCA), financial development (FD), energy consumption (EC) and rural labor force as important determinants of CPD. Design/methodology/approach This study used an auto-regressive distributive lag (ARDL) model and several econometric approaches to validate the long- and short-term cointegration and the causality directions, respectively, of the scrutinized variables. Findings Results of the bounds testing approach confirmed the stable long-term connections among the underlying variables. The estimates of the ARDL model indicated that rainfall improves CPD in the short-and long-term. However, CO2e has a significantly negative impact on CPD both in the short-and long-term. Results further showed that temperature has an adverse effect on CPD in the short-term. Among other determinants, CCA, FD and EC have significantly positive impacts on CPD in both cases. The outcomes of Granger causality indicated that a significant two-way causal association is running from all variables to CPD except temperature and rainfall. The connection between CPD and temperature is unidirectional, showing that CPD is influenced by temperature. All other variables also have a valid and significant causal link among each other. Additionally, the findings of variance decomposition suggest that results are robust, and all these factors have a significant influence on CPD in Bangladesh. Research limitations/implications These findings have important policy implications for Bangladesh and other developing countries. For instance, introduce improved cereal crop varieties, increase CCA and familiarizes agricultural credits through formal institutions on relaxed conditions and on low-interest rates could reduce the CPD’s vulnerability to climate shocks. Originality/value To the best of the authors’ knowledge, this study is the first attempt to examine the short- and long-term impacts of CC on CPD in Bangladesh over 1988–2014. The authors used various econometrics techniques, including the ARDL approach, the Granger causality test based on the vector error correction model framework and the variance decomposition method.

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“…Certainly, plant cooling takes place through transpiration ( Curtis, 1936 ), which needs soil moisture. Outside Europe and Africa, specifically in Khyber Pakhtunkhwa (Pakistan), an analysis of maize yield between years 1996 and 2015 also showed that precipitation has a positive effect in maize productivity, while elevated temperatures have a deleterious impact ( Khan et al, 2019 ). In the United States, maize yield losses, from 1959 to 2004, were due to increased evaporative demand and subsequent water supply depletion, which was induced by high temperatures ( Lobell et al, 2013 ).…”

Section: Effects Of Drought and Heat On Maize Crop Productivitymentioning

confidence: 99%

Maize stomatal responses against the climate change

Serna

2022

Front. Plant Sci.

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Drought and heat, in the context of climate change, are expected to increase in many agricultural areas across the globe. Among current abiotic stresses, they are the most limiting factors that influence crop growth and productivity. Maize is one of most widely produced crops of the world, being the first in grain production with a yield that exceeded 1.1 billion tons in 2021. Despite its wide distribution in semi-arid regions, it is highly vulnerable to climate change, which triggers important losses in its productivity. This article explores how maize yield may persevere through climate change by focusing on the stomatal regulation of gas exchange. The emerging picture unravels that maize copes with drought stress by reducing stomatal size and stomatal pore area, and increasing stomatal density, which, in turn, reduces transpiration and photosynthetic rate. When drought and heat co-occur, heat enhances stomatal response to drought stress. To avoid plant heat damage, the decline in stomatal aperture could trigger the expansion of the distance of action, from the longitudinal leaf veins, of ZmSHR1, which might act to positively regulate ZmSPCHs/ZmICE1 heterodimers, increasing the stomatal density. Only when drought is not very severe, elevated CO2 levels reduce yield losses. The knowledge of the upcoming climate changes together with the prediction of the developmental and physiological stomatal responses will allow not only to anticipate maize yield in the next years, but also to contribute to the correct decision-making in the management of this important crop.

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Impact of Climate Change on Maize Productivity in Khyber Pakhtunkhwa, Pakistan

Cited by 13 publications

References 0 publications

Addressing the long- and short-run effects of climate change on major food crops production in Turkey

Addressing the long- and short-run effects of climate change on major food crops production in Turkey

Assessing the impacts of climate change on cereal production in Bangladesh: evidence from ARDL modeling approach

Maize stomatal responses against the climate change

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