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Land suitability evaluation using GIS-based multi-criteria decision making for bio-fuel crops cultivation in KhonKaen, Thailand

Land suitability evaluation using GIS-based multi-criteria decision making for bio-fuel crops cultivation in KhonKaen, Thailand

Khongnawang, Tibet and Williams, Meredith (2015) Land suitability evaluation using GIS-based multi-criteria decision making for bio-fuel crops cultivation in KhonKaen, Thailand. In: International Soil Conference 2015, 18-21 August 2015, The Regent Cha Am Beach Resort, Phetchaburi, Thailand. (Unpublished)

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Abstract

The effective Multi-criteria Decision Making (MCDM) has been adopted by this study. Several studies agreed that one of the understandable principles of the Analytical Hierarchy Process (AHP) MCDM can be able to work on multiple criteria analysis. It can deal with the data uncertainties among several criteria which is the strength point to be chosen for land suitability evaluation for biofuel crops cultivation in KhonKaen, Thailand. Due to this study aims to allocate the scarcely land availability for the most suitable crops and turn into the higher beneficial incomes for farmers. Therefore, the sixteen criterion layers that related to the selected crop requirements were analysed using the GIS based approach. These include soil texture, soil reaction, soil drainage, soil depth, soil cat-ion exchange capacity (CEC), ground water, stream water, irrigation zone, slope, elevation, aspect, erosion, soil salinity, drought, rainfall and humidity. The results shown based on the objectives in different degrees. The suitable areas were extracted by matching the potential suitable areas with the existing land use dataset. It shown the total areas of land allocations by MCDM is as 71.86% and by individual crops in the three suitable classes that the rice areas should be preserved around 32.02% while the rest areas of around 24.34%, 10.87% and 4.63% were for sugarcane, oil palm and cassava respectively. While the results of total areas by FAO is 66.76% and provided the total areas by individual crops as around 28.94%, 25.92%, 8.35% and 3.52% for rice, sugarcane, oil palm and cassava respectively. The results can be simulated by multiplying the average cost and benefit values with the suitable areas to visualise the potential budgets and potential incomes for the decision makers.

Item Type: Conference or Conference Paper (Poster)
Additional Information: This poster presented the key results of an MSc dissertation project by Tibet Khongnawang, a student on the University of Greenwich MSc GIS with Remote Sensing programme. The poster won the second place award in the "Innovative Techniques and Tools for Soil Resources Inventories and Appropriate Management" session.
Uncontrolled Keywords: Biofuel crops, land suitability evaluation, Analytical Hierarchy Process, Multi-criteria decision making, GIS
Subjects: S Agriculture > S Agriculture (General)
S Agriculture > SB Plant culture
Faculty / Department / Research Group: Faculty of Engineering & Science > Department of Pharmaceutical, Chemical & Environmental Sciences
Related URLs:
Last Modified: 17 Oct 2016 09:13
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
URI: http://gala.gre.ac.uk/id/eprint/13870

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