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Authors
Affiliations
1 Centre for Remote Sensing, Bharathidasan University, Tiruchirappalli-620024, IN
Source
International Journal of Earth Sciences and Engineering, Vol 10, No 3 (2017), Pagination: 478-483
Abstract
An increased impervious area due to landuse changes is the major reason for the reduced rainwater recharge. The ground water level depletion is due to the fact that over extraction of groundwater to fulfill the demand of urbanization and industrialization. Landuse and land cover is an important component in understanding the interactions of the human activities with the environment and thus it is necessary to study changes. In this paper an attempt is made to study on the changes of landuse and land cover in Perambalur taluk over the period of 22 years from 1992 to 2013. The landuse land cover maps were prepared using temporal satellite data of LANDSAT ETM of 1992, LANDSAT ETM+ of 2001 and LANDSAT-8 OLI/TIRS of 2013 using digital and visual interpretation method based on the NRSC classification method. Ground truth observations were also performed to check the doubtful areas and also check the classification accuracy. Various landuse classes were interpreted and area calculation was attributed. Crop land area that occupied about 37.85 percent of the area in 1992 and it gradually changed in to 30.12 percent in 2001 and 30.35 per cent in 2013 and also water bodies has changed into 2.55 to 2.08 percent in (2001-2013).Fallow land, Built up land, Scrub land and Waste land also have experienced changes. Built-up lands have been increased from 1.91 percent to 4.24 percent of the total area. Proper landuse planning and management is essential for a sustainable development of area.
Keywords
Landuse Changes, Perambalur, Groundwater Recharge and Water Balance.
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