LULC Change Detection at Killa Abdullah District Balochistan Using GIS Techniques

Abstract

Changes in land use and land cover (LULC) have an impact on our comprehension of regional, local, and global environmental change, and cities are dynamic because change is constant and can be attributed to a variety of factors depending on the socioeconomic, political, and environmental circumstances of a particular location. Socioeconomic changes have a direct impact on the local environment because of the significant changes in the natural world. The study aims to classify the many forms of land use and land cover that existed in the Killa Abdullah region between 1992 and 2020, including the built-up, barren terrain, vegetated, and rangeland sectors. to evaluate the impact of the changes on LULC. For this study, both primary and secondary data were gathered. Secondary data was gathered using satellite images from the corresponding years 1990 and 2020, while primary data was gathered using GPS coordinates. Both satellite images were analyzed using the ERDAS Imagine 9.8v and ArcGIS 10.1v software. The findings of the study illustrated the intricate dynamics of land cover in the area. These nuances highlight potential avenues for expanding the field of research, notably in the area of customized training approaches. The accuracy for the years 1990, 2000, 2010, and 2020 was 92%, 88%, 87%, and 93%, respectively. The overall precision, which took into account all classes, reached a respectable 90%. The vegetation appears to have changed over time, peaking around 2010. While it was lower in 2020 than it was in 2010, it was still higher than it had been in the earlier years. When compared to 1990, water areas substantially declined in 2000, increased in 2010, and then dramatically decreased once more in 2020. Built- up areas have grown steadily over time, with a notable increase in 2020 compared to earlier years. As built-up regions have grown over time, especially in 2020, there is a clear pattern of urban expansion. Although there is considerable variety in bare places, it is not as noticeable as it is in other land cover types. Changes in land cover are a result of adjustments made to the human surface. Although the output's accuracy was only modest, a visual analysis revealed multiple misclassifications and overstatements of built-up and water.

Keywords

• land use land cover
• gis
• remote sensing
• agriculture
• satellite images