An analysis of land use and land cover change in thiruvaiyaru block, Thanjavur District in Tamil Nadu

In this paper an attempt has been made to analyse the landuse and landcover change detection in Thiruvaiyaru block of Thanjavur district using remote sensing and GIS techniques. The total area of the study is 163.88 sq.km. It lies between the long 78 o 48’ E to 79o 9’ E and Lat. 10o 48’ to 11o 56’ N. In this block there are totally 62 villages. This area has a multi various land use. The satellite imageries LANDSAT 5TM (2005) and LANDSAT 7ETM (2015) data’s are used and the scale is 1:50,000. It is located in the central part of Tamil Nadu. Landuse and Landcover change detection maps were generated and classified into agriculture land, built-up land, fallow land, Uncultivable land, river sand, water bodies, and vegetation land for the year 2005 and 2015 based on NRSA classification. Each landuse and landcover has been from change to have positively and negatively for the two decades, especially agriculture land, sandy area, vegetation and fallow land, which is about 19.62, 6.56, 13.16 and 14.91 percentages respectively. These images were taken for comparing the classifications. The Landsat 5TM and 7ETM images were taken from GLCF.