Satellite-based assessment of physiographic disposition to health problems in kasargod district,Kerala, India |
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| Authors: | P P Nageshwara Rao S Elango H R Rajmohan V Krishna Murthy |
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| Institution: | (1) Surveying Engineering Department, Faculty of Engineering & Technology, Zarqa Private University, Zarqa, 13110, Jordan;(2) Institute of Cartography, Faculty of Forestry, Geo and Hydro-Science, Dresden University of Technology, 01062 Dresden, Germany;(3) Spatial and Numerical Modeling Laboratory, Institute of Advanced Technology, University Putra Malaysia, Malaysia, 43400 UPM Serdang, Selangor, Malaysia; |
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| Abstract: | Photo interpretation and digital classification of IRS LISS -III sensor data have been carried out for a few villages affected
by abnormal health problems in the Kasargod district of Kerala State. Physical location of the affected villages in relation
to the agricultural lands use, watershed characteristics and the extent of cashewnut plantations are studied. It was found
that the villages affected by the health problems are located in the microwatersheds that have steep slopes, nearly circular
in shape, high runoff potential. The first order streams within these micro-watersheds are originating from the cashewnut
plantations that are sprayed with a toxicant called Endosulfan. The study recommends to stop aerial spraying of any toxicant
on the cash crops of these watersheds. |
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