Volume No. 5 Issue No.: 2 Page No.: 340-349 October-December 201

 

EMERGING LAND USE CHANGES AND THEIR EFFECTS ON GROUNDWATER : A STUDY OF THE MAMBAKKAM MINI WATERSHED, SOUTHERN SUBURBAN AREA OF CHENNAI, INDIA

 

S. Packialakshmi*, N. K. Ambujam1 and S. Mahalingam2

1. Centre for Water Resources, Anna University, Chennai (INDIA)
2. Madras University, Chennai (INDIA)

 

Received on : June 29, 2010

 

ABSTRACT

 

Urbanization and unplanned development of land and water resources have resulted in the adverse changes in the land use pattern and on the groundwater resources in the southern sub urban area of Chennai city. The present paper summarizes the severe land use changes and groundwater problems, using the high resolution remote sensing data of IRS P6 LISS III +PAN December 2004 and IRS P6 LISS IV MX and PAN March 2008 to provide information accurately. Change detection has shown that built up areas and industrial areas increased by 14.73% and the areas comprising irrigated land, water bodies and waste land decreased by 25.2% of total area during 2004-2008. The findings obtained by synthesizing the satellite data and hydrologeogical information indicated that the changes in the land use category, significant water level fluctuation and unaccountable groundwater development have triggered the hydrogeological imbalance. Realizing the land use changes and their impact on the groundwater system would be very important for effectively utilizing and managing land and water resources.

 

Keywords : Land use, Urbanization, Aquifer hazard, Groundwater, Geomatics

 

 

BACK