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Agroclimatic Zone

Description of Agro-climatic Zone & major agro ecological situations (based on soil and topography)

Nagapattinam a coastal district of Tamil Nadu, lies between 100 80 and 110 28’ in North Latitude and 760 34’ and 750 53’ in East Longitude.  It is bounded on the north by Cuddalore, South by Palk Strait, west by Tiruvarur and on the east by Bay of Bengal.  The total geographical are of the district is 2.71 lakh hectares.  Nagapattinam is categorized as agro-ecological region 18, representing the Coastal eco-system-Eastern coastal plain, hot sub-humid to semi-arid eco-system with a growing period of 90 to 210 days.

Nagapattinam district is comprised of seven taluks and 11 Panchayat Unions.  The total population of the district is 13,77,000 (Male 691000 and female 686000) as per 2001 census.  The average annual rainfall of the district is 1358mm.  North East monsoon accounts for 65.16 per cent followed by South West monsoon with 22.58 per cent and summer 4.82 per cent of the total rainfall.  The soils of the district are mainly identified as soil series 15.  Nagapattinam is mainly constituted by Kalathur, Adhanur, Keelayur and Melakadu soil series which mainly accounted for 56 per cent of the total area.  The other major soil series are Kondal (7.46%), Padugai (7.37%), Valuthalagudi (6.69%), Nedumbalam (4.07%) and Kallivayal (3.74%).  The district has a reserve forest area of 4,762 ha which is two per cent of the total geographical area.  Nagapattinam district is predominantly irrigated by Cauvery and Vennar river basin system and identified as old delta.  River Coleroon also forms an irrigation source for this district.  The animal population in the district is 6.69 lakhs, of which cow constitutes 31.80 per cent and buffalo accounts for 10.95 per cent (Poultry constitute 31.95%).  Goat population accounts for 21.15 per cent, with higher population in Kuttalam and Thalainayar blocks.  About 12,010 families are engaged in fishing activities in 320 fishing locations along the coast which extends 187 km.

Location : Nagapattinam a coastal district of Tamil Nadu, lies between 10˚ 8` and 11˚ 28` in North Latitude and 76 ˚ 34` and 75 ˚ 53` in East Longitude. 

Soil type/s : Clay loam, Clay sandy loam, Sandy soil