Assessment on the Impact of Land Use, Land Cover in the Upstream of the Adyar River Basin, Tamil Nadu, India

Globally, significant factors such as the economy, population growth, and climate change have resulted in dramatic changes to Earth's LULC, over the last few decades of Earth. Effective environmental management, particularly water management practises, depend on an understanding of land use and land cover (LULC) changing trends. Using multitemporal Landsat satellite imagery from 2005, 2010, 2015, and 2021, in South Asia, upstream of the Adyar River system, this study evaluated LULC changes. Divide the study area into five categories using remote sensing and geographic information systems: agricultural area, build-up land, waterbody, vegetation, and barren land. Most changes have occurred in the waterbody, built-up land, and agriculture categories. However, in 2005–2021, the change matrix table shows all LULC modifications for all LULC classes. As the study area's population, the study area has increased, so as the levels of development along with the waterbodies. Therefore, to avoid resource-use conflicts in the study area, adequate basin management is necessary, including land use planning.