Rainfall analysis of Nashik district for crop planning
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Date
2019
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Mahatma Phule Krishi Vidyapeeth, Rahuri
Abstract
Water resource has become a prime concern for sustainable development of agricultural
planning including food production, flood control and effective water resource management etc.
Hence research work on “Rainfall Analysis of Nashik district for Crop Planning” was conducted.
The study was conducted with objectives of determination of various statistical parameters,
determination of rainfall trend (M-K test and Sen’s Slope method) and estimation of water
surplus – deficit. The rainfall and other meteorological data were collected from State Data
Storage Cetre (SDSC), Nashik and relevant sources. The collected data were categorized as
annual, monthly and weekly basis for this study.
The observed average annual rainfall in district ranges from 487 – 3008 mm. The
statistical analysis showed that amount of average rainfall was highest in July (Igatpuri, 1059
mm) followed by August (943.0 mm), June (471.0 mm) and September (411.0 mm) month with
less coefficient of variation, whereas in other month observed that more variation in rainfall. The
coefficient of variation ranges 300 to 734 per cent. The less coefficient of variation was observed
in July month (30.8 per cent) in Igatpuri; whereas more coefficient of variation observed in
January month (734.8 per cent) at Surgana, Peth and Tirmbakeshwar. The mean weekly rainfall
was increasing from MW 22 to MW 41, it decreased from MW 42 onwards to MW 52. The
highest mean weekly rainfall observed in Igatpuri (268.9 mm) followed by Trimbakeshwar
(221.1 mm) and Surgana tehsil (193.4 mm) respectively.