A water and salt balance model for the polders and islands in the Ganges delta.
Saved in:
| Title: | A water and salt balance model for the polders and islands in the Ganges delta. |
|---|---|
| Authors: | Mainuddin, M.1 (AUTHOR) mohammed.mainuddin@csiro.au, Maniruzzaman, M.2 (AUTHOR), Gaydon, D.S.3 (AUTHOR), Sarkar, S.4 (AUTHOR), Rahman, M.A.5 (AUTHOR), Sarangi, S.K.6 (AUTHOR), Sarker, K.K.7 (AUTHOR), Kirby, J.M.1 (AUTHOR) |
| Source: | Journal of Hydrology. Aug2020, Vol. 587, pN.PAG-N.PAG. 1p. |
| Subjects: | Saline waters, Water supply, Agricultural productivity, Water transfer, Water balance (Hydrology), River deltas, Cropping systems, Water management |
| Abstract: | • A novel time-series model of water and salt stores and flows in idealised polder. • Conceptually simple, but reproduces the complex water and salt behaviour observed. • Results verified with detailed crop modelling results. • Useful for investigating water and salt management procedures, and future impacts. • It is the only model which deals with the transfers of water and salt. Cropping in the polders and islands of the Ganges delta is difficult, particularly in the dry season when water is limited and salinity can damage plant growth. Cropping is generally restricted to the wet season. The limited cropping contributes to the high incidence of poverty and limited livelihood prospects in the region. Increasing crop production is desirable, and will depend upon management of the water and salt in a polder. We have developed a novel time-series model of water and salt stores and flows in an idealised polder to investigate water and salt management strategies for crop production, including strategies to cope with climate change and sea level rise. We know of no other model that simulates the overall water and salt balance of a polder, and that can assess a wide range of polder water and salt management strategies. The model adequately reproduces the dynamic water and salt behaviour observed in field data, and also agrees with results produced by a more detailed crop model. A sensitivity analysis of the model shows the results are sensitive to the key model parameters. In general, the results are more sensitive to parameters governing the transfers of salt, and less sensitive to those governing the availability of water. The crop evapotranspiration is particularly sensitive to the model parameters. The main practical consideration resulting from this simplified but robust representation of the polder salt and water balance processes is the importance of management (including drainage) to remove salt. Strategies to improve water availability, while useful, are secondary to the management of salt. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Hydrology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
|---|---|
| Header | DbId: egs DbLabel: Engineering Source An: 144631585 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
| IllustrationInfo | |
| Items | – Name: Title Label: Title Group: Ti Data: A water and salt balance model for the polders and islands in the Ganges delta. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Mainuddin%2C+M%2E%22">Mainuddin, M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> mohammed.mainuddin@csiro.au</i><br /><searchLink fieldCode="AR" term="%22Maniruzzaman%2C+M%2E%22">Maniruzzaman, M.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gaydon%2C+D%2ES%2E%22">Gaydon, D.S.</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sarkar%2C+S%2E%22">Sarkar, S.</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Rahman%2C+M%2EA%2E%22">Rahman, M.A.</searchLink><relatesTo>5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sarangi%2C+S%2EK%2E%22">Sarangi, S.K.</searchLink><relatesTo>6</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sarker%2C+K%2EK%2E%22">Sarker, K.K.</searchLink><relatesTo>7</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kirby%2C+J%2EM%2E%22">Kirby, J.M.</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Hydrology%22">Journal of Hydrology</searchLink>. Aug2020, Vol. 587, pN.PAG-N.PAG. 1p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Saline+waters%22">Saline waters</searchLink><br /><searchLink fieldCode="DE" term="%22Water+supply%22">Water supply</searchLink><br /><searchLink fieldCode="DE" term="%22Agricultural+productivity%22">Agricultural productivity</searchLink><br /><searchLink fieldCode="DE" term="%22Water+transfer%22">Water transfer</searchLink><br /><searchLink fieldCode="DE" term="%22Water+balance+%28Hydrology%29%22">Water balance (Hydrology)</searchLink><br /><searchLink fieldCode="DE" term="%22River+deltas%22">River deltas</searchLink><br /><searchLink fieldCode="DE" term="%22Cropping+systems%22">Cropping systems</searchLink><br /><searchLink fieldCode="DE" term="%22Water+management%22">Water management</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: • A novel time-series model of water and salt stores and flows in idealised polder. • Conceptually simple, but reproduces the complex water and salt behaviour observed. • Results verified with detailed crop modelling results. • Useful for investigating water and salt management procedures, and future impacts. • It is the only model which deals with the transfers of water and salt. Cropping in the polders and islands of the Ganges delta is difficult, particularly in the dry season when water is limited and salinity can damage plant growth. Cropping is generally restricted to the wet season. The limited cropping contributes to the high incidence of poverty and limited livelihood prospects in the region. Increasing crop production is desirable, and will depend upon management of the water and salt in a polder. We have developed a novel time-series model of water and salt stores and flows in an idealised polder to investigate water and salt management strategies for crop production, including strategies to cope with climate change and sea level rise. We know of no other model that simulates the overall water and salt balance of a polder, and that can assess a wide range of polder water and salt management strategies. The model adequately reproduces the dynamic water and salt behaviour observed in field data, and also agrees with results produced by a more detailed crop model. A sensitivity analysis of the model shows the results are sensitive to the key model parameters. In general, the results are more sensitive to parameters governing the transfers of salt, and less sensitive to those governing the availability of water. The crop evapotranspiration is particularly sensitive to the model parameters. The main practical consideration resulting from this simplified but robust representation of the polder salt and water balance processes is the importance of management (including drainage) to remove salt. Strategies to improve water availability, while useful, are secondary to the management of salt. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Hydrology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=144631585 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.jhydrol.2020.125008 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 1 StartPage: N.PAG Subjects: – SubjectFull: Saline waters Type: general – SubjectFull: Water supply Type: general – SubjectFull: Agricultural productivity Type: general – SubjectFull: Water transfer Type: general – SubjectFull: Water balance (Hydrology) Type: general – SubjectFull: River deltas Type: general – SubjectFull: Cropping systems Type: general – SubjectFull: Water management Type: general Titles: – TitleFull: A water and salt balance model for the polders and islands in the Ganges delta. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Mainuddin, M. – PersonEntity: Name: NameFull: Maniruzzaman, M. – PersonEntity: Name: NameFull: Gaydon, D.S. – PersonEntity: Name: NameFull: Sarkar, S. – PersonEntity: Name: NameFull: Rahman, M.A. – PersonEntity: Name: NameFull: Sarangi, S.K. – PersonEntity: Name: NameFull: Sarker, K.K. – PersonEntity: Name: NameFull: Kirby, J.M. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 08 Text: Aug2020 Type: published Y: 2020 Identifiers: – Type: issn-print Value: 00221694 Numbering: – Type: volume Value: 587 Titles: – TitleFull: Journal of Hydrology Type: main |
| ResultId | 1 |
