Kodaiyar River Basin
Kodaiyar River Basin Introduction One of the oldest systems in Tamil Nadu is the “Kodaiyar system” providing irrigation facilities for two paddy crop seasons in Kanyakumari district. The Kodaiyar system comprises the integrated operation of commands of two major rivers namely Pazhayar and Paralayar along with Tambaraparani or Kuzhithuraiyur in which Kodaiyar is a major tributary. The whole system is called as Kodaiyar system. Planning, development and management of natural resources in this basin require time-effective and authentic data.The water demand for domestic, irrigation, industries, livestock, power generation and public purpose is governed by socio – economic and cultural factors such as present and future population size, income level, urbanization, markets, prices, cropping patterns etc. Water Resources Planning is people oriented and resources based. Data relating to geology, geomorphology, hydrogeology, hydrology, climatology, water quality, environment, socio – economic, agricultural, population, livestock, industries, etc. are collected for analysis. For the sake of consistency, other types of data should be treated in the same way. Socio – economic, agricultural and livestock statistics are collected and presented on the basis of administrative units located within this basin area. Location and extent of Kodaiyar Basin The Kodaiyar river basin forms the southernmost end of Indian peninsula. The basin covers an area of 1646.964 sq km. The flanks of the entire basin falls within the TamilnaduState boundary. Tamiraparani basin lies on the north and Kodaiyar basin on the east and Neyyar basin of Kerala State lies on the west. This is the only river basin which has its coastal border adjoining the Arabian sea, the Indian Ocean in the south and the Gulf of Mannar in the east.
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