There is a rapid change in land use/cover which drastically affects on the environment, by flow of water, energy, greenhouse gases from the land to atmosphere, deforestation etc. An attempt has been made to study the temporal changes of land use/cover for the three periods viz. 2011 and 2020 to identify the changes in Pennar subbasin, Anantapur district, Andhra Pradesh. The study was carried out using Erdas Imagine 2015 software with Landsat 8 and Landsat 5 imageries of 2020 and 2011. The study area was categorized into seven classes which are reservoirs, waterbodies, agricultural lands, barren lands, fallow lands, built up lands and forest. Maximum likelihood classification of supervised classification was used in the present research. The accuracy assessment was carried by Kappa coefficient statistics of the years 2011 and 2020. The results indicate the annual rate of change (ARC) during 2011 to 2020 is in raising trend for agricultural lands, built up, barren lands, forest and water bodies with 9.49 km2/yr (11.97%), 0.47 km2/yr (1.63%), 1.09 km2/yr (7.15%), 1.30 km2/yr (2.17%) and 0.16 km2/yr (0.59%), respectively. Furthermore, it was in decreasing trend for reservoir and fallow land 0.07 km2/yr (0.73%) and 12.47 km2/yr (6.09%).
Sankara et al. (Tue,) studied this question.
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