Assessing climate change impacts on pearl millet under arid and semi-arid environments using CSM-CERES-Millet model
- 10 January 2019
- journal article
- research article
- Published by Springer Science and Business Media LLC in Environmental Science and Pollution Research
- Vol. 26 (7), 6745-6757
- https://doi.org/10.1007/s11356-018-3925-7
Abstract
Climate change adversely affects food security all over the world, especially in developing countries where the increasing population is confronting food insecurity and malnutrition. Crop models can assist stakeholders for assessment of climate change in current and future agricultural production systems. The aim of this study was to use of system analysis approach through CSM-CERES-Millet model to quantify climate change and its impact on pearl millet under arid and semi-arid climatic conditions of Punjab, Pakistan. Calibration and evaluation of CERES-Millet were performed with the field observations for pearl millet hybrid 86M86. Mid-century (2040–2069) climate change scenarios for representative concentration pathway (RCP) 4.5 and RCP 8.5 were generated based on an ensemble of selected five general circulation models (GCMs). The model was calibrated with optimum treatment (15-cm plant spacing and 200 kg N ha−1) using field observations on phenology, growth and grain yield. Thereafter, pearl millet cultivar was evaluated with remaining treatments of plant spacing and nitrogen during 2015 and 2016 in Faisalabad and Layyah. The CERES-Millet model was calibrated very well and predicted the grain yield with 1.14% error. Model valuation results showed that there was a close agreement between the observed and simulated values of grain yield with RMSE ranging from 172 to 193 kg ha−1. The results of future climate scenarios revealed that there would be an increase in Tmin (2.8 °C and 2.9 °C, respectively, for the semi-arid and arid environment) and Tmax (2.5 °C and 2.7 °C, respectively, for the semi-arid and arid environment) under RCP4.5. For RCP8.5, there would be an increase of 4 °C in Tmin for the semi-arid and arid environment and an increase of 3.7 °C and 3.9 °C in Tmax, respectively, for the semi-arid and arid environment. The impacts of climate changes showed that pearl millet yield would be reduced by 7 to 10% under RCPs 4.5 and 8.5 in Faisalabad and 10 to 13% in Layyah under RCP 4.5 and 8.5 for mid-century. So, CSM-CERES-Millet is a useful tool in assessing the climate change impacts.This publication has 39 references indexed in Scilit:
- Yield Forecasting of Spring Maize Using Remote Sensing and Crop Modeling in Faisalabad-Punjab PakistanJournal of the Indian Society of Remote Sensing, 2018
- Assessing the impact of climate variability on maize using simulation modeling under semi-arid environment of Punjab, PakistanEnvironmental Science and Pollution Research, 2018
- Optimizing irrigation and nitrogen requirements for maize through empirical modeling in semi-arid environmentEnvironmental Science and Pollution Research, 2018
- Water Use and Yield of Millet Under the Zai System: Understanding the Processes Using SimulationPublished by Springer Science and Business Media LLC ,2012
- Food Security: The Challenge of Feeding 9 Billion PeopleScience, 2010
- Adapting agriculture to climate changeProceedings of the National Academy of Sciences of the United States of America, 2007
- Socio-economic and climate change impacts on agriculture: an integrated assessment, 1990–2080Philosophical Transactions Of The Royal Society B-Biological Sciences, 2005
- Contribution of agrometeorology to the simulation of crop production and its applicationsAgricultural and Forest Meteorology, 2000
- Long‐term nitrogen balance for pearl millet (Pennisetum glaucum L.) in an acid sandy soil of NigerJournal of Plant Nutrition and Soil Science, 1993
- Fate and efficiency of N fertilizers applied to pearl millet in NigerPlant and Soil, 1990