Integrated Water Management Decision Support System for Seberang Perak Paddy Estate

A study was carried out to develop an integrated water management decision support system for the Seberang Perak paddy estate. The decision support system incorporated results from a database management system, a model base management system and a rule based knowledge base system. The domain exp...

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Main Author:	Mohamed Najim, Mohamed Mujithaba
Format:	Thesis
Language:	English English
Published:	2004
Subjects:	Decision support systems
Online Access:	http://psasir.upm.edu.my/id/eprint/484/1/1549574.pdf
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id	my-upm-ir.484
record_format	uketd_dc
spelling	my-upm-ir.4842013-05-27T06:48:39Z Integrated Water Management Decision Support System for Seberang Perak Paddy Estate 2004-07 Mohamed Najim, Mohamed Mujithaba A study was carried out to develop an integrated water management decision support system for the Seberang Perak paddy estate. The decision support system incorporated results from a database management system, a model base management system and a rule based knowledge base system. The domain experts’ knowledge on integrated water management were collected together with other secondary historical data that were used in the modeling approach to generate more knowledge on different combinations of possible scenarios. The modeling approaches used in the knowledge generation was evapotranspiration modeling, a flow routing modeling, a water balance modeling and a crop growth and a yield modeling. A GIS was used in the output model to make the decision support system outputs more effective in their presentation. The evapotranspiration modeling tested the suitability of a few methods to predict evapotranspiration in the project area using 45 years of weather data. The results suggested applying the Penman-Monteith, the Pan or the Blaney-Criddle models for the project area seems to be the best. Because of its worldwide applicability, the Penman-Monteith model was utilized in the study. The flow routing routine performed showed good agreement with measured data. Evapotranspiration estimates, flow routing and water balance applied to each of the field plots for all possible scenarios, suggested alternative decisions for the better performance of the paddy estate. All these results were coded to rules and kept in knowledge bases that will be posted as outputs for user queries. Major problem identified in the Seberang Perak paddy estate was the land preparation water management. Land preparation needs to be completed within 16 days so that the targeted 250% cropping intensity could be achieved. This is only possible when canals are flowing full and a part of the total water requirements is supplemented with rainfall. The modeling approach suggested many possible alternate scenarios and decision alternatives, which were gathered in the knowledge bases. The knowledge generated through modeling approach was always verified with domain experts from the sub-estates concerned. The acceptable knowledge were then coded to pseudocodes and translated to rules of the knowledge bases. All the added rules to the knowledge bases were verified and validated for the proper functioning of the decision support system components. All the knowledge-based modules (menu module, crop schedule, land preparation water management, second supply water management, supply after fertilizer application, yield modeling and drainage management) were linked under a same platform. The outputs and results of these components are linked with a GIS and other relevant information. Decision support systems 2004-07 Thesis http://psasir.upm.edu.my/id/eprint/484/ http://psasir.upm.edu.my/id/eprint/484/1/1549574.pdf application/pdf en public phd doctoral Universiti Putra Malaysia Decision support systems Faculty of Engineering English
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English English
topic	Decision support systems
spellingShingle	Decision support systems Mohamed Najim, Mohamed Mujithaba Integrated Water Management Decision Support System for Seberang Perak Paddy Estate
description	A study was carried out to develop an integrated water management decision support system for the Seberang Perak paddy estate. The decision support system incorporated results from a database management system, a model base management system and a rule based knowledge base system. The domain experts’ knowledge on integrated water management were collected together with other secondary historical data that were used in the modeling approach to generate more knowledge on different combinations of possible scenarios. The modeling approaches used in the knowledge generation was evapotranspiration modeling, a flow routing modeling, a water balance modeling and a crop growth and a yield modeling. A GIS was used in the output model to make the decision support system outputs more effective in their presentation. The evapotranspiration modeling tested the suitability of a few methods to predict evapotranspiration in the project area using 45 years of weather data. The results suggested applying the Penman-Monteith, the Pan or the Blaney-Criddle models for the project area seems to be the best. Because of its worldwide applicability, the Penman-Monteith model was utilized in the study. The flow routing routine performed showed good agreement with measured data. Evapotranspiration estimates, flow routing and water balance applied to each of the field plots for all possible scenarios, suggested alternative decisions for the better performance of the paddy estate. All these results were coded to rules and kept in knowledge bases that will be posted as outputs for user queries. Major problem identified in the Seberang Perak paddy estate was the land preparation water management. Land preparation needs to be completed within 16 days so that the targeted 250% cropping intensity could be achieved. This is only possible when canals are flowing full and a part of the total water requirements is supplemented with rainfall. The modeling approach suggested many possible alternate scenarios and decision alternatives, which were gathered in the knowledge bases. The knowledge generated through modeling approach was always verified with domain experts from the sub-estates concerned. The acceptable knowledge were then coded to pseudocodes and translated to rules of the knowledge bases. All the added rules to the knowledge bases were verified and validated for the proper functioning of the decision support system components. All the knowledge-based modules (menu module, crop schedule, land preparation water management, second supply water management, supply after fertilizer application, yield modeling and drainage management) were linked under a same platform. The outputs and results of these components are linked with a GIS and other relevant information.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Mohamed Najim, Mohamed Mujithaba
author_facet	Mohamed Najim, Mohamed Mujithaba
author_sort	Mohamed Najim, Mohamed Mujithaba
title	Integrated Water Management Decision Support System for Seberang Perak Paddy Estate
title_short	Integrated Water Management Decision Support System for Seberang Perak Paddy Estate
title_full	Integrated Water Management Decision Support System for Seberang Perak Paddy Estate
title_fullStr	Integrated Water Management Decision Support System for Seberang Perak Paddy Estate
title_full_unstemmed	Integrated Water Management Decision Support System for Seberang Perak Paddy Estate
title_sort	integrated water management decision support system for seberang perak paddy estate
granting_institution	Universiti Putra Malaysia
granting_department	Faculty of Engineering
publishDate	2004
url	http://psasir.upm.edu.my/id/eprint/484/1/1549574.pdf
_version_	1747810231548641280

Integrated Water Management Decision Support System for Seberang Perak Paddy Estate

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