Author(s):

Sumant Prasad, AN Mishra, AK Singh and Manoj Kumar

Abstract: The historical data of weather parameters especially rainfall and temperature (maximum and minimum) of district Bahraich of U.P were collected for study from the period of 1987-2016. Result reveals that in district Bahraich of U.P., the annual trend of rainfall have been studied using annual data series of 30 years (1987-2016) and divided into three decades which is 1987-1996, 1997-2006 and 2007-2016 respectively. Annual rainfall of Bahraich gradually declined over the normal 1036.2 (mm) in recent years. Annual average maximum temperature of district Bahraich of U.P. was found increasing trend over normal average maximum temperature (31.1 ⁰C) during 30years (1987-2016) period. Rise in average maximum temperature by 2.2 ⁰C was found in the year 2009 over the normal temperature of district Bahraich of U.P. A slight increasing trend of average minimum temperature of about 1.92⁰C over the normal average minimum temperature (18.08 ⁰C) was observed. Average temperature was increased by 1.7 ⁰C over normal average temperature within this 30 years period. A decreasing trend of rainfall and increasing trend of both maximum and minimum temperature resulted into decreased agricultural production with respect to the present grain need scenario for the world population.

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