Water productivity in South Asia: spatial and temporal variations
This chapter assesses the variations and options for improving water productivity to address water risks and insecurity in South Asian countries. The water productivity indicators of focus are physical water productivity (PWP)—the production per unit of water use, and economic water productivity (EW...
| Autores principales: | , , , |
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| Formato: | Capítulo de libro |
| Lenguaje: | Inglés |
| Publicado: |
Springer
2025
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/174362 |
| _version_ | 1855530932126089216 |
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| author | Amarasinghe, Upali Sikka, Alok Perera, Madhusha Alahacoon, Niranga |
| author_browse | Alahacoon, Niranga Amarasinghe, Upali Perera, Madhusha Sikka, Alok |
| author_facet | Amarasinghe, Upali Sikka, Alok Perera, Madhusha Alahacoon, Niranga |
| author_sort | Amarasinghe, Upali |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | This chapter assesses the variations and options for improving water productivity to address water risks and insecurity in South Asian countries. The water productivity indicators of focus are physical water productivity (PWP)—the production per unit of water use, and economic water productivity (EWP), the value of production per unit of water use. A significant potential exists to increase PWP in many South Asian countries and regions with no water scarcity. These regions require increased access to water. However, increasing EWP should take precedence under water-scarce conditions. The latter may require reducing water-intensive crop areas and diversifying to less water-intensive crops. |
| format | Book Chapter |
| id | CGSpace174362 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | CGSpace1743622025-04-29T04:49:14Z Water productivity in South Asia: spatial and temporal variations Amarasinghe, Upali Sikka, Alok Perera, Madhusha Alahacoon, Niranga water productivity climate change water scarcity rainfall patterns mixed farming vulnerability water use This chapter assesses the variations and options for improving water productivity to address water risks and insecurity in South Asian countries. The water productivity indicators of focus are physical water productivity (PWP)—the production per unit of water use, and economic water productivity (EWP), the value of production per unit of water use. A significant potential exists to increase PWP in many South Asian countries and regions with no water scarcity. These regions require increased access to water. However, increasing EWP should take precedence under water-scarce conditions. The latter may require reducing water-intensive crop areas and diversifying to less water-intensive crops. 2025-04-13 2025-04-29T04:48:31Z 2025-04-29T04:48:31Z Book Chapter https://hdl.handle.net/10568/174362 en Open Access Springer Amarasinghe, Upali; Sikka, Alok; Perera, Madhusha; Alahacoon, Niranga. 2025. Water productivity in South Asia: spatial and temporal variations. In Mabhaudhi, T.; Chimonyo, V. G. P.; Senzanje, A.; Chivenge, P. P. (Eds.). Enhancing water and food security through improved agricultural water productivity: new knowledge, innovations and applications. Singapore: Springer. pp.223-240. [doi: https://doi.org/10.1007/978-981-96-1848-4_10] |
| spellingShingle | water productivity climate change water scarcity rainfall patterns mixed farming vulnerability water use Amarasinghe, Upali Sikka, Alok Perera, Madhusha Alahacoon, Niranga Water productivity in South Asia: spatial and temporal variations |
| title | Water productivity in South Asia: spatial and temporal variations |
| title_full | Water productivity in South Asia: spatial and temporal variations |
| title_fullStr | Water productivity in South Asia: spatial and temporal variations |
| title_full_unstemmed | Water productivity in South Asia: spatial and temporal variations |
| title_short | Water productivity in South Asia: spatial and temporal variations |
| title_sort | water productivity in south asia spatial and temporal variations |
| topic | water productivity climate change water scarcity rainfall patterns mixed farming vulnerability water use |
| url | https://hdl.handle.net/10568/174362 |
| work_keys_str_mv | AT amarasingheupali waterproductivityinsouthasiaspatialandtemporalvariations AT sikkaalok waterproductivityinsouthasiaspatialandtemporalvariations AT pereramadhusha waterproductivityinsouthasiaspatialandtemporalvariations AT alahacoonniranga waterproductivityinsouthasiaspatialandtemporalvariations |