Climate change trends in some of the rubber growing regions of North-East India


  • Shammi Raj



Climate change   analysis has been conducted using daily surface meteorological datasets in   respect of nine parameters from five rubber growing locations in the East and   North-East India. Monthly, seasonal and annual variability in meteorological   parameters showed decreasing trends in relative humidity, sunshine hours and   pan evaporation rates coupled with increasing temperature extremes. Rise in   mean temperature was seen to be highest (0.34 0C per decade) for Dhenkanal   which experiences dry sub-humid type of climate. The data on relative humidity   and temperature also revealed the fact that warm surface temperatures, along   with limited moisture availability, may lead to lower relative humidity in   the future, since all the stations are away from the moist coastal belts.   Decreasing trends in sunshine hours were mainly observed during winter and   post monsoon seasons with decreasing number of days even with the optimum   required daily sunshine hours. The fact that there were no significant   changes in the amount of rainfall or the number of rainy days was in   conformity with several earlier reports in the northeast. Mean monthly   decadal variations have also been tested with earlier and recent sets. With   long term trends in most of the weather parameters, being lesser when   compared to that of the traditional rubber growing regions in India, it is   imperative that for rubber cultivation to thrive in this non-traditional   belt, future policy inputs will have to be based depending on the magnitude   of climate change effects.


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How to Cite

Raj, S. (2015). Climate change trends in some of the rubber growing regions of North-East India. Journal of Plantation Crops, 43(3).



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