Agricultural water use and management in arid and semiarid areas: Current situation and measures for improvement
Water is rapidly becoming scarcer especially in arid and semiarid areas such as Central West Asia and North Africa Region (CWANA), while irrigated agriculture is critical for national and world food security in these regions. Due to huge gaps between crop demands and rainfall, most countries of thes...
| Autores principales: | , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
2006
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/40921 |
| _version_ | 1855533563379712000 |
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| author | Dehghanisanij, H. Oweis, Theib Y. Qureshi, Asad Sarwar |
| author_browse | Dehghanisanij, H. Oweis, Theib Y. Qureshi, Asad Sarwar |
| author_facet | Dehghanisanij, H. Oweis, Theib Y. Qureshi, Asad Sarwar |
| author_sort | Dehghanisanij, H. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Water is rapidly becoming scarcer especially in arid and semiarid areas such as Central West Asia and North Africa Region (CWANA), while irrigated agriculture is critical for national and world food security in these regions. Due to huge gaps between crop demands and rainfall, most countries of these regions cannot have productive form of agriculture without assured irrigation supplies. Continues decrease in the surface water resources has put enormous pressure on groundwater resources and as a results; throughout the regions groundwater tables are declining. Since water is the most limited factor in these regions, improving the productivity of existing water resources is an attractive alternative to sustain irrigated agriculture. There is a strong need to educate farmers to shift their thinking from "maximizing crop yields? to " optimizing crop yields? . The results show that substantial and sustainable improvements in water productivity can be achieved through integrated farm-resources management. On-farm irrigation water management techniques such as deficit irrigation if coupled with better cropping patterns together with appropriate cultural practices, and improved genetic make-up will help to achieve this objective. Conventional water-management and cropping pattern guidelines, designed to maximize yield per unit area, need to be revised for achieving maximum water productivity. The wide ranges in recorded crop water productivities suggest that agricultural production can be maintained to its current level by using 20 to 40% less water if new water management practices are adopted. This paper reviews the current situation of water scarcity, agricultural water productivity, and suggests options for sustainable management of land and water resources in these regions. |
| format | Journal Article |
| id | CGSpace40921 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2006 |
| publishDateRange | 2006 |
| publishDateSort | 2006 |
| record_format | dspace |
| spelling | CGSpace409212023-06-12T19:07:56Z Agricultural water use and management in arid and semiarid areas: Current situation and measures for improvement Dehghanisanij, H. Oweis, Theib Y. Qureshi, Asad Sarwar water deficit irrigated farming water use efficiency irrigation efficiency water conservation precipitation groundwater evapotranspiration drip irrigation furrow irrigation sprinkler irrigation optimization Water is rapidly becoming scarcer especially in arid and semiarid areas such as Central West Asia and North Africa Region (CWANA), while irrigated agriculture is critical for national and world food security in these regions. Due to huge gaps between crop demands and rainfall, most countries of these regions cannot have productive form of agriculture without assured irrigation supplies. Continues decrease in the surface water resources has put enormous pressure on groundwater resources and as a results; throughout the regions groundwater tables are declining. Since water is the most limited factor in these regions, improving the productivity of existing water resources is an attractive alternative to sustain irrigated agriculture. There is a strong need to educate farmers to shift their thinking from "maximizing crop yields? to " optimizing crop yields? . The results show that substantial and sustainable improvements in water productivity can be achieved through integrated farm-resources management. On-farm irrigation water management techniques such as deficit irrigation if coupled with better cropping patterns together with appropriate cultural practices, and improved genetic make-up will help to achieve this objective. Conventional water-management and cropping pattern guidelines, designed to maximize yield per unit area, need to be revised for achieving maximum water productivity. The wide ranges in recorded crop water productivities suggest that agricultural production can be maintained to its current level by using 20 to 40% less water if new water management practices are adopted. This paper reviews the current situation of water scarcity, agricultural water productivity, and suggests options for sustainable management of land and water resources in these regions. 2006 2014-06-13T14:48:44Z 2014-06-13T14:48:44Z Journal Article https://hdl.handle.net/10568/40921 en Limited Access Dehghanisanij, H.; Oweis, T.; Qureshi, Asad Sarwar. 2006. Agricultural water use and management in arid and semiarid areas: Current situation and measures for improvement. Annals of Arid Zone, 45(2):1-24. |
| spellingShingle | water deficit irrigated farming water use efficiency irrigation efficiency water conservation precipitation groundwater evapotranspiration drip irrigation furrow irrigation sprinkler irrigation optimization Dehghanisanij, H. Oweis, Theib Y. Qureshi, Asad Sarwar Agricultural water use and management in arid and semiarid areas: Current situation and measures for improvement |
| title | Agricultural water use and management in arid and semiarid areas: Current situation and measures for improvement |
| title_full | Agricultural water use and management in arid and semiarid areas: Current situation and measures for improvement |
| title_fullStr | Agricultural water use and management in arid and semiarid areas: Current situation and measures for improvement |
| title_full_unstemmed | Agricultural water use and management in arid and semiarid areas: Current situation and measures for improvement |
| title_short | Agricultural water use and management in arid and semiarid areas: Current situation and measures for improvement |
| title_sort | agricultural water use and management in arid and semiarid areas current situation and measures for improvement |
| topic | water deficit irrigated farming water use efficiency irrigation efficiency water conservation precipitation groundwater evapotranspiration drip irrigation furrow irrigation sprinkler irrigation optimization |
| url | https://hdl.handle.net/10568/40921 |
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