Effect of shallow groundwater table on crop water requirements and crop yields

2005 ◽  
Vol 76 (1) ◽  
pp. 24-35 ◽  
Author(s):  
M.A. Kahlown ◽  
M. Ashraf ◽  
Zia-ul-Haq
Keyword(s):  
Crop Yields ◽  
Shallow Groundwater ◽  
Groundwater Table ◽  
Crop Water ◽  
Water Requirements ◽  
Crop Water Requirements ◽  
Shallow Groundwater Table

scholarly journals Assessing Crop Water Requirements and a Case for Renewable-Energy-Powered Pumping System for Wheat, Cotton, and Sorghum Crops in Sudan

Energies ◽  
2021 ◽  
Vol 14 (23) ◽  
pp. 8133
Author(s):  
Zafar A. Khan ◽  
Muhammad Imran ◽  
Jamal Umer ◽  
Saeed Ahmed ◽  
Ogheneruona E. Diemuodeke ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Crop Yields ◽  
Renewable Energy Sources ◽  
Cost Effective ◽  
Electrical Energy ◽  
Crop Water ◽  
Water Shortages ◽  
Water Requirements ◽  
Climate Conditions ◽  
Crop Water Requirements

Climate change is changing global weather patterns, with an increase in droughts expected to impact crop yields due to water scarcity. Crops can be provided with water via underground pumping systems to mitigate water shortages. However, the energy required to pump water tends to be expensive and hazardous to the environment. This paper explores different sites in Sudan to assess the crop water requirements as the first stage of developing renewable energy sources based on water pumping systems. The crop water requirements are calculated for different crops using the CROPWAT and CLIMWAT simulation tools from the Food and Agriculture Organization (FAO) of the United Nations. Further, the crop water requirements are translated into electrical energy requirements. Accurate calculations of the energy needed will help in developing cost-effective energy systems that can help in improving yields and reducing carbon emissions. The results suggest that the northern regions tend to have higher energy demands and that the potential for renewable energy should be explored in these regions, which are more susceptible to drought and where crops tend to be under higher stress due to adverse climate conditions.

A modelling platform for climate change impact on local and regional crop water requirements

2021 ◽  
Vol 255 ◽  
pp. 107005
Author(s):  
Sara Masia ◽  
Antonio Trabucco ◽  
Donatella Spano ◽  
Richard L. Snyder ◽  
Janez Sušnik ◽  
...  
Keyword(s):  
Climate Change ◽  
Climate Change Impact ◽  
Crop Water ◽  
Water Requirements ◽  
Crop Water Requirements ◽  
Change Impact

Satellite based calculation of spatially distributed crop water requirements for cotton and wheat cultivation in Fergana Valley, Uzbekistan

2013 ◽  
Vol 110 ◽  
pp. 88-98 ◽  
Author(s):  
Christopher Conrad ◽  
Maren Rahmann ◽  
Miriam Machwitz ◽  
Galina Stulina ◽  
Heiko Paeth ◽  
...  
Keyword(s):  
Crop Water ◽  
Water Requirements ◽  
Crop Water Requirements ◽  
Wheat Cultivation ◽  
Spatially Distributed

Past and future changes in regional crop water requirements in Northwest China

2018 ◽  
Vol 137 (3-4) ◽  
pp. 2203-2215 ◽  
Author(s):  
Xiaoyan Song ◽  
Songbai Song ◽  
Zhi Li ◽  
Wenbin Liu ◽  
Jiuyi Li ◽  
...  
Keyword(s):  
Northwest China ◽  
Crop Water ◽  
Water Requirements ◽  
Crop Water Requirements

scholarly journals Geological and geomorphological conditions of Archar-Orsoya lowland as a factor for the formation of groundwater chemical composition and in risk of its contamination

2021 ◽  
Vol 35 (1) ◽  
pp. 63-70
Author(s):  
Sava Kolev ◽  
Mila Trayanova
Keyword(s):  
Chemical Composition ◽  
Sand Dunes ◽  
Shallow Groundwater ◽  
Groundwater Table ◽  
Danube River ◽  
Shallow Water Table ◽  
The Danube River ◽  
Sandy Layer ◽  
Shallow Groundwater Table ◽  
Landslide Slope

The Archar-Orsoya lowland is situated in the Danube floodplain west of the town of Lom, NW Bulgaria. It is aligned in a west-east direction along the Danube River and to the south it is bounded by a high landslide slope, built of Pliocene clays and sands. Parallel to the shore, sand dunes are formed with lowered sections between them, in which there are conditions for swamping. The lowland is made up of the alluvial sediments of the Danube, represented by a lower gravelly-sandy layer and an upper sandy-clayey layer. In the gravelly-sandy layer unconfined groundwater is accumulated, with shallow water table – from 0.5 to 7 m beneath the surface. Groundwater is recharged by infiltration of precipitation, surface water and groundwater, which laterally flows into the alluvium from adjacent aquifers. At high waters, the Danube River suppresses the formed groundwater flow and temporarily feeds it. Due to the described formation conditions in the lowland, the chemical composition of groundwater is formed under the influence of intense dynamics and has a low TDS (total dissolved solids). The shallow groundwater table and the corresponding thin unsaturated zone are a prerequisite for easy groundwater contamination with components entering from the surface. Therefore, a map of depth to groundwater table is drawn to identify the most vulnerable areas.

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