TY - JOUR
T1 - Monitoring agricultural drought using geospatial techniques
T2 - A case study of Thal region of Punjab, Pakistan
AU - Amin, Muhammad
AU - Khan, Mobushir Riaz
AU - Hassan, Sher Shah
AU - Khan, Aftab Ahmad
AU - Imran, Muhammad
AU - Goheer, Muhammad Arif
AU - Hina, Syeda Mahlaqa
AU - Perveen, Abida
N1 - Publisher Copyright:
© IWA Publishing 2020.
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2020/6/10
Y1 - 2020/6/10
N2 - The Thal region of Punjab often experiences dry weather conditions with extreme variability in rainfall on a spatiotemporal scale during Rabi cropping season. The current study assesses the impacts of agriculture drought on wheat crops for 2000–2015. MOD13Q1 and CHIRPS data were used for identifying and assessing variation in agricultural drought patterns and severity. SPI, NDVI, VCI, STVI and wheat crop yield anomalies were computed to characterize the gravity of drought across the Thal region. The results indicate that the wheat Rabi cropping seasons of the years 2000–2002 experienced extreme agricultural drought, with a spatial difference in severity level causing low and poor yield, while the years 2011 and 2014 were almost normal among all the years, leaving varied impacts on wheat yield. The combined agricultural risk map was generated by integrating the agricultural and meteorological droughts severity maps. The combined risk map generated using weighted overlay analysis of all the parameters indicate that the total Thal area can be classified into slight, moderate and no drought covering 28.12, 12.76, and 59.12% respectively of the total area. Hence an agricultural risk map would be extremely helpful as a tool to guide the decision-making process for monitoring drought risk on agricultural productivity.
AB - The Thal region of Punjab often experiences dry weather conditions with extreme variability in rainfall on a spatiotemporal scale during Rabi cropping season. The current study assesses the impacts of agriculture drought on wheat crops for 2000–2015. MOD13Q1 and CHIRPS data were used for identifying and assessing variation in agricultural drought patterns and severity. SPI, NDVI, VCI, STVI and wheat crop yield anomalies were computed to characterize the gravity of drought across the Thal region. The results indicate that the wheat Rabi cropping seasons of the years 2000–2002 experienced extreme agricultural drought, with a spatial difference in severity level causing low and poor yield, while the years 2011 and 2014 were almost normal among all the years, leaving varied impacts on wheat yield. The combined agricultural risk map was generated by integrating the agricultural and meteorological droughts severity maps. The combined risk map generated using weighted overlay analysis of all the parameters indicate that the total Thal area can be classified into slight, moderate and no drought covering 28.12, 12.76, and 59.12% respectively of the total area. Hence an agricultural risk map would be extremely helpful as a tool to guide the decision-making process for monitoring drought risk on agricultural productivity.
KW - Agricultural drought
KW - CHIRPS
KW - GIS and RS
KW - Meteorological drought
KW - Remote sensing
UR - https://www.mendeley.com/catalogue/c0311f12-1f98-36b9-b514-79c4ad09f412/
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U2 - 10.2166/wcc.2020.232
DO - 10.2166/wcc.2020.232
M3 - Article
SN - 2040-2244
VL - 11
SP - 203
EP - 216
JO - Journal of Water and Climate Change
JF - Journal of Water and Climate Change
IS - 1S
ER -