LULC change detection using RS and GIS application: a case study of Nandhiyar sub basin, Chennai, India

Authors

  • D. Radhakrishnan, Ankit Chakravarti, Aschalew Cherie, R.S. Soundharya, S. Deeba, Abebe Temesgen

Abstract

Land use land cover (LULC) is very useful component in understanding the interaction between the human activities and the environment. So it is important to study and detect the land use land cover changes in Nandhiyar sub basin in Chennai India. In these study modern techniques such as Remote Sensing and GIS using with IRS (Indian remote sensing Satellite) IC LISS (Linear Image Self scanning Sensor ) III and PAN(Panchromatic) merged data 1994, IRS ID LISS III and PAN merged data 2004 and IRS P6, LISS III data 2010. All the images are in 1:50,000 scale.

The classification of land use was made based on the toposheets and Satellite imageries. Thematic maps are prepared using GIS and ground truth investigation was also made to check the accuracy of the land use classification. The land use analysis shows that during the period 1994-2004, a total of 7.97 km2 is loss in the water bodies category. The wet crop area decreased to 74.504 km2 with a loss of 30.562 km2. Dry crop area increased by 13.12 km2. Built up land category increased 1.55 % during the period 1994 to 2004. This is due to urbanization in the study area. From the total area 2.56% of waste land category is also increased Similarly, the plantation, land with scrub, water logged, barren rocky, tanks and reservoirs have also shows some change. In India, Chennai is known as one of the major industrialized area. Hence it is important to monitor and detect the land use changes for maintaining the environment sustainable and for further development.

Published

2020-11-01

Issue

Section

Articles