Application of geographical information system to evaluate land-use changes in Hue City, Thua Thien Hue province

Abstract

We used the ArcGIS 10.8 software to build land-use change maps from two maps of current land use status in 2011 and 2019 and land inventory data in 2012 and 2022. Current land-use maps represent eight types of land use, including agricultural, specialized land, urban residential land, rural land, land of rivers, streams, and specialized water surface, religious land, land used for cemeteries, graveyards, funeral service centres and cremation centres, and unused land. The varied land-use map built by superimposing two current land-use maps shows that, in 2012–2022, there was a clear change in area due to the process of urban expansion according to NQ 1624/NQ-UBTVQH and land-use change. Specifically, the expanded area accounts for 19,542.16 hectares because of the merge of communes and wards into the city, of which Huong Tho has the largest area of 4716.14 hectares, and the largest land type is agricultural land with 12,783.70 hectares. The changed land area related to the old boundary is 7,104.05 hectares; the largest increase is the specialized land (410.23 hectares), and the largest decrease is agricultural land (302.73 hectares).