Decision Support System DSS for sustainable watershed management in Dong Nai Watershed - Vietnam

Loi N.K., . and Tangtham N., . (2005) Decision Support System DSS for sustainable watershed management in Dong Nai Watershed - Vietnam. [Proceedings Paper]

In this study DSS was developed using linear programming LP goal programming GP and geographic information system GIS for sustainable watershed management in Dong Nai watershed Vietnam. A case study approach was undertaken using what-if planning scenarios. The multi-objective linear programming MOLP techniques and GIS have been applied to display the optimum land resource allocation in different scenario in order to evaluate the sustainable strategy of land development in a watershed. The information incorporated into the optimization objectives include economic benefits characterized by net income sediment yield and water discharge. The constraint set thereby consists of the limitations of carrying capacity of various land-use programs and assimilative capacity corresponding to different impacts on water quantity and sediment yield. Type of spatial planning problems described in this paper allocates different land uses across a geographical region subject to a variety of constraints and conflicting management objectives. This complex land use planning decisions were made not only on what to do selection of activities but also on where to do it i.e. relocate a new set of suitable land use for different scenarios adding a whole extra class of decision variables to the problem. New location of suitable land use has been manipulated using the given criteria in terms of slope soil depth and rainfall. The algorithm was developed in ArcView GIS software to relocate land use map in Dong Nai watershed. The developed DSS performed well in Dong Nai watershed 589 078 ha and applicable to any watershed in Vietnam.

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Abstract

In this study DSS was developed using linear programming LP goal programming GP and geographic information system GIS for sustainable watershed management in Dong Nai watershed Vietnam. A case study approach was undertaken using what-if planning scenarios. The multi-objective linear programming MOLP techniques and GIS have been applied to display the optimum land resource allocation in different scenario in order to evaluate the sustainable strategy of land development in a watershed. The information incorporated into the optimization objectives include economic benefits characterized by net income sediment yield and water discharge. The constraint set thereby consists of the limitations of carrying capacity of various land-use programs and assimilative capacity corresponding to different impacts on water quantity and sediment yield. Type of spatial planning problems described in this paper allocates different land uses across a geographical region subject to a variety of constraints and conflicting management objectives. This complex land use planning decisions were made not only on what to do selection of activities but also on where to do it i.e. relocate a new set of suitable land use for different scenarios adding a whole extra class of decision variables to the problem. New location of suitable land use has been manipulated using the given criteria in terms of slope soil depth and rainfall. The algorithm was developed in ArcView GIS software to relocate land use map in Dong Nai watershed. The developed DSS performed well in Dong Nai watershed 589 078 ha and applicable to any watershed in Vietnam.

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Item Type:	Proceedings Paper
Additional Information:	6 ill. 2 tables 3 ref.
AGROVOC Term:	WATERSHED MANAGEMENT
AGROVOC Term:	LAND RESOURCES
AGROVOC Term:	LAND USE
AGROVOC Term:	GEOGRAPHICAL INFORMATION SYSTEMS
AGROVOC Term:	LINEAR PROGRAMMING
AGROVOC Term:	EROSION
AGROVOC Term:	VIET NAM
Geographical Term:	MALAYSIA
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:28
URI:	http://webagris.upm.edu.my/id/eprint/16673

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