A Multicriteria Evaluation using the Analytic Hierarchy Process and Correlation Techniques to Analyze the Sustainability of Land-use Planning: A Case Study in Phu Quoc Islands, Vietnam

The Multicriteria Evaluation uses the Analytic Hierarchy Process (AHP-MCE) technique to analyze and determine factors affecting land-use plan implementation results from 2015 to 2023 to propose a solution to improve the effectiveness of land-use plan implementation. The case study is in Phu Quoc City, Kien Giang Province. The study collects data on the current land-use plans. Statistically, it analyzes the correlation between current land-use plans and implementation results, combining interviews and AHP analysis. The results show that agricultural land has decreased and non-agricultural land has increased from 2015 to 2023. The City has increasingly effectively implemented land-use plans. The study identified four level 1 factors (natural conditions, economy, society, and policy) and twenty-one level 2 factors. Natural conditions have the highest weight (W = 0.46), and the level 2 factor of geographical location has the most significant impact (overall weight W = 0.192). In addition, the study proposed solutions based on the impact factors to improve the effectiveness of implementing the land-use plan for Phu Quoc City.