Impact of Rainfall and Temperature on Tea Production in Undivided Sivasagar District

Climate change is one of the barriers in tea production. In Assam region tea production has decline in recent year, although the area under has been risen. Taking this into consideration the impact of climate change on tea production was conducted in undivided Sivasagar district (viz. Sivasagar, Jorhat and Golaghat). To select the samples for the study, a random sampling technique was followed. A sample of 15 tea estates were selected from undivided Sivasagar district and five tea estates were selected from each district. Keeping in view both primary and secondary data have been collected and used for the study from published and unpublished sources for the duration of 1986-2015. Results revealed that the variability of different climatic parameters such as rainfall, maximum temperature were higher in the period II in comparison with the period I. In case of the climatic parameters minimum temperature was less variable in the period II. The climatic parameters, maximum temperature was found to have significant positive effect on yield of tea in Sivasagar district, but the minimum temperature had negative effect without significance in the period however, in case of period II, there was no significant effect of climatic parameters on yield of tea.