Land Use/Land Cover Change along the Coastline of La Union, Philippines

Authors

  • Paul Cervin Rivera University of Santo Tomas
  • Jan Erick Amik Department of Biological Sciences, College of Science, University of Santo Tomas
  • Ma. Isabella Escobar Department of Biological Sciences, College of Science, University of Santo Tomas
  • Anne Olfato-Parojinog The Graduate School, University of Santo Tomas
  • Pauline Angela Sobremonte-Maglipon The Graduate School, University of Santo Tomas
  • James Eduard Limbo-Dizon Research Center for the Natural and Applied Sciences, University of Santo Tomas
  • Nikki Heherson Dagamac Research Center for the Natural and Applied Sciences, University of Santo Tomas

DOI:

https://doi.org/10.58825/jog.2024.18.1.129

Keywords:

ArcGIS, Coastal Area, Coastal Erosion, Landsat, Land Use/ Land Cover, Remote Sensing, Urbanization

Abstract

With the hazards piling up on a global level, especially in the coastal areas, this study aims to employ remote sensing and Geographic Information System (GIS) in assessing the Land Use/ Land Cover Change (LULCC) data of the coastal municipalities of La Union, Philippines. Through spatiotemporal maps along with computer-generated results, landscape changes were observed and assessed qualitatively (LULC) and quantitatively (accuracy assessments, change detection analysis) for analyzing LULCC. The occurrence of landscape fragmentation was observed across the five classes (water, urban, barren, vegetation, and agricultural land), particularly between urban, vegetation, and agricultural land, showing interrelationship with landscape stability and fluctuations across a three-decade period (1990-2021) with an accuracy assessment result of 60%- 94%. Significant changes across the three decades showed a decrease in vegetation, -15.32%, and an increase in the remaining four (water, urban, agricultural land, and barren) with +3.11%, +2.71%, +7.01%, and +2.48%, respectively. The result of the study highlighted the need for developing conservation measures crafted on sustainable land use policies and interventions for coastal resources management and shoreline protection.

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Published

2024-04-30

How to Cite

Rivera, P. C., Amik, J. E., Escobar, M. I., Olfato-Parojinog, A., Sobremonte-Maglipon, P. A., Limbo-Dizon, J. E., & Dagamac, N. H. (2024). Land Use/Land Cover Change along the Coastline of La Union, Philippines. Journal of Geomatics, 18(1), 103–111. https://doi.org/10.58825/jog.2024.18.1.129