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In Pakistan, climate change is affecting water resources and also agriculture productivity. Rice-Wheat cropping zone is one of
the prone regions that use water coming from upstream of the Indus Basin in Pakistan. In this study Soil and Water Assessment
Tool (SWAT) model was used to evaluate the climate change adaptation practices in agriculture. The model was calibrated for
the years 2005-2010 at Tarbela and Mangla reservoirs. Reasonably good performance of the calibrated model was achieved
by estimated Coefficient of Determination (R2
), Nash-Sutcliffe efficiency (NSE), Percent Bias (PBIAS) at 0.87, 0.82 and 10.7
% for Tarbela and 0.70, 0.72 and 15.7 % for Mangla, respectively. Direct-Seeded Rice (DSR) practice for rice and Zero Tillage
practice for wheat crops were tested in comparison to conventional methods by using SWAT. In parallel to the modeling
approach, the field experiment was performed for two years i.e. 2016-17 and-2017-18 at district Sahiwal. The results showed
that overall water productivity of DSR was 0.58 and 0.54 kg per m3
in the year 2017 and 2018, respectively, which was higher
than Transplanting Rice Practice (TRP) having 0.43 and 0.40 kg per m3
in 2017 and 2018, respectively. In wheat crop trails,
overall water productivity of zero tillage was 1.3 and 1.2 kg per m3
in the years 2017 and 2018, respectively. Two climate
change scenarios Representative Concentration Pathways (RCP) 4.5 and 8.5 were tested in a combination of best management
practices to evaluate climate change adaptation strategies for rice-wheat cropping zones. The results showed that DSR and
Zero Tillage practices would be helpful in the future to adapt the expected climate change conditions without compromising
the yield and water productivity of rice and wheat crops.
Muhammad Mohsin Khan, Muhammad Jehanzeb Masud Cheema, Muhammad Arshad, Tasneem Khaliq. (2020) EVALUATION OF CLIMATE CHANGE ADAPTATION PRACTICES IN THE AGRICULTURE SECTOR USING SATELLITE IMAGERY IN PAKISTAN, Pakistan Journal of Agricultural Sciences, Volume 57, Issue 5.
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