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| dc.contributor.author | Getachew, Genanew | |
| dc.date.accessioned | 2024-10-21T08:22:33Z | |
| dc.date.available | 2024-10-21T08:22:33Z | |
| dc.date.issued | 2024-02 | |
| dc.identifier.uri | http://ir.bdu.edu.et/handle/123456789/16055 | |
| dc.description.abstract | The aim of this study was to estimate the water footprint of selected crops in the Beles sub-basin. To accomplish this, relevant data on the chosen crops, including crop yield, area coverage, and meteorological data, were collected and analyzed. The CROPWAT model version 8.0 was employed to calculate parameters like crop water requirement, effective rainfall, and irrigation need. The CROPWAT data outputs, including effective rainfall and irrigation requirements, were inputted into Microsoft Excel to compute the green water footprint (GWF) and blue water footprint (BWF) of the selected crops. The specific objectives were to determine the GWF and BWF for the chosen crops in the study area, as well as to quantify the total yearly water volume utilized by the crops through irrigation during the growing seasons. The findings revealed discrepancies in irrigation water needs among the selected crops. For example, during the rainy season, maize crops in the Pawi area required 428.3 mm of rainwater, whereas in the Dangila area, the rainwater requirement was 404 mm. However, during the irrigated season, maize crops in Pawi had an irrigation water requirement of 579.4 mm, while in Dangila it was 570.3 mm. additionally; the water footprint of each crop was assessed. Maize crops exhibited a higher GWF during the rainy season in Pawi (818.4 m3/ton) compared to Dangila (508 m3/ton). In the irrigated season, maize crops in Pawi had a higher BWF (506.7 m3/ton) than Dangila (348.7 m3/ton). However, the maize water footprint in Dangila indicated a higher GWF (13.7 m3/ton) compared to Pawi (4.9 m3/ton). In terms of onion cultivation during the irrigated season, Dangila showed a higher BWF (416 m3/ton) than Pawi (154.8 m3/ton), with Dangila also exhibiting a higher GWF (15.9 m3/ton) compared to Pawi (1.4 m3/ton). For soybean cultivation during the rainy season in Pawi, the water footprint was determined to be 1011.1m³/ton. This study is significant for policymakers, farmers, water management authorities, and researchers as it offers insights to implement water-saving practices and enhance efficient water resource management in the study area. Therefore, this study plays a crucial role in addressing and alleviating water scarcity, especially in relation to crop cultivation. Key words: Blue Water Footprint, Green Water Footprint, Beles Sub Basin and Crop Yield, Water Use. | en_US |
| dc.language.iso | en_US | en_US |
| dc.subject | Civil and Water Resource Engineering | en_US |
| dc.title | Estimating the Water Footprint of the Selected Crops on the Beles Sub-Basin of Blue Nile Ethiopia | en_US |
| dc.type | Thesis | en_US |
