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Ashfaq Ahmad
Researcher at University of Agriculture, Faisalabad
Publications - 131
Citations - 3259
Ashfaq Ahmad is an academic researcher from University of Agriculture, Faisalabad. The author has contributed to research in topics: Irrigation & Climate change. The author has an hindex of 29, co-authored 117 publications receiving 2232 citations.
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Journal ArticleDOI
Multi-model projections of future climate and climate change impacts uncertainty assessment for cotton production in Pakistan.
Muhammad Habib ur Rahman,Muhammad Habib ur Rahman,Ashfaq Ahmad,Xuechun Wang,Aftab Wajid,Wajid Nasim,Manzoor Hussain,Burhan Ahmad,Ishfaq Ahmad,Zulfiqar Ali,Wajid Ishaque,Muhammad Awais,Vakhtang Shelia,Vakhtang Shelia,Shakeel Ahmad,Shah Fahd,Mukhtar Alam,Hidayat Ullah,Gerrit Hoogenboom,Gerrit Hoogenboom +19 more
TL;DR: In this article, the uncertainty associated with projected climate change impacts on cotton yield in Punjab, Pakistan using 29 general circulation models (GCMs) under high and moderate representative concentration pathway (RCP) scenarios (4.5 and 8.5) at near-term (2010-2039) and mid-century (2040-2069) time spans.
Journal ArticleDOI
Quantification the impacts of climate change and crop management on phenology of maize-based cropping system in Punjab, Pakistan
Ghulam Abbas,Shakeel Ahmad,Ashfaq Ahmad,Wajid Nasim,Zartash Fatima,Sajjad Hussain,Muhammad Habib ur Rehman,Muhammad Azam Khan,Mirza Hasanuzzaman,Shah Fahad,Kenneth J. Boote,Gerrit Hoogenboom +11 more
TL;DR: It is suggested that earlier late sowing and shifts of cultivars requiring high total growing degree day during 1980–2014, have partially mitigated the negative impact of climate change on phenology of both spring and autumn grown maize.
Impact of Climate Change on the Rice–Wheat Cropping System of Pakistan
Ashfaq Ahmad,Muhammad Ashfaq,Syed Aftab Wajid,Ghulam Rasul,Syed AftabWajid,Tasneem Khaliq,Fahd Rasul,Umer Saeed,Muhammad Habib ur Rahman,Jamshad Hussain,Irfan Ahmad Baig,Syed Asif Ali Naqvi,Syed Ahsan Ali Bokhari,Shakeel Ahmad,Wajid Naseem,Gerrit Hoogenboom,Roberto O. Valdivia +16 more
Journal ArticleDOI
Using GIS tools to detect the land use/land cover changes during forty years in Lodhran District of Pakistan
Sajjad Hussain,Muhammad Mubeen,Ashfaq Ahmad,Waseem Akram,Hafiz Mohkum Hammad,Mazhar Ali,Nasir Masood,Asad Amin,Hafiz Umar Farid,Syeda Refat Sultana,Shah Fahad,Depeng Wang,Wajid Nasim +12 more
TL;DR: LULC change with soil types, temperature, and NDVI, NDBI, and slope classes was common in the study area, and the conversions of bare soil into vegetation area and built-up area were major changes in the past 40 years in Lodhran district.
Journal ArticleDOI
Quantification of Climate Warming and Crop Management Impacts on Cotton Phenology.
Shakeel Ahmad,Qaiser Abbas,Ghulam Abbas,Zartash Fatima,Atique-ur-Rehman,Sahrish Naz,Haseeb Younis,Rana Jahan Zeb Khan,Wajid Nasim,Muhammad Habib ur Rehman,Ashfaq Ahmad,Ghulam Rasul,Muhammad Azam Khan,Mirza Hasanuzzaman +13 more
TL;DR: Applying the cropping system model CSM-CROPGRO-Cotton model indicated that the model-predicted phenology accelerated more due to warming trends than field-observed phenology, and new cotton cultivars which have higher thermal times and are high temperature tolerant should be evolved.