Integration of analytic hierarchy process and weighted goal programming for land use optimization at the watershed scale

Authors : HADI MEMARIAN, SIVA K BALASUNDRAM, KARIM C ABBASPOUR, JAMAL B TALIB, CHRISTOPHER TEH BOON SUNG, ALIAS MOHD SOOD

Pages : 139-158

Doi:10.3906/muh-1303-21

View : 22 | Download : 12

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :In recent decades, the Hulu Langat Basin in Malaysia has been exposed to extensive changes in land use pattern and consequently hydrological conditions. Maintaining a reasonable balance between environmental currents and governmental/population demands is a difficult task. In this work, 3 land use scenarios were defined, which are the present insert ignore into journalissuearticles values(baseline);, future, and water conservation plans. Weighted goal programming insert ignore into journalissuearticles values(WGP);, integrated with the analytic hierarchy process insert ignore into journalissuearticles values(AHP);, was used to optimize the baseline land use scenario with consideration of water conservation outcomes and future development trend. Three types of objectives were involved in the AHP-WGP approach, i.e. social, economic, and environmental. The values of environmental objectives were estimated using the optimized Soil and Water Assessment Tool insert ignore into journalissuearticles values(SWAT);. Four planning alternatives were defined and formulated, i.e. A1, A2, B1, and B2. The AHP-WGP approach resulted in 4 optimized land development alternatives. In terms of the water conservation objective, alternatives A1 and B1 were more desirable than alternatives A2 and B2, respectively. However, due to the existing socioeconomic-environmental circumstances within the Hulu Langat Basin, alternatives B1 and B2 were more appropriate.
Keywords : Land use optimization, weighted goal programming, analytic hierarchy process, SWAT, Hulu Langat Basin