Mountains in the Chaning World, Mountains in the Chaning World

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Solar Irrigation System being an effective Climate Smart Technology for the Irrigation
Aastha Bhusal

Last modified: 2017-09-03

Abstract


Climate change has increased the events of water scarcity during crop season, numbers of dry days in winter and change in monsoon season. The drought and water scarcity with less rainfall has been one of the problems for the farmers for better production of the crops. In Nawalparasi district, there has been recurrent winter drought, increasing water scarcity and untimely rainfall. Similarly, massive use of the diesel for pumping the underground water has led to emission of greenhouse gases which ultimately contribute further climate change process. The terai and inner terai region of Nawalparasi are facing these problems for the cultivation of the crops which limit the expansion of the crops and cropping intensity. Many land remain fallow after rice harvest due to unavailability of adequate water .In this case, solar based irrigation can be regarded as the climate smart alternative, as it promotes the use of renewable source of energy and also reduces the consumption of diesel thereby contributing to climate change mitigation. In Nawalparasi, five solar based irrigation system has been installed directly benefitting 77 HHs covering 20 hectare of land. This has provided water for agriculture purpose during off season and has helped to increase the cropping intensity from 200% to 300%. The land which used to be fallow, has now been covered with crops and vegetables. The solar based irrigation system is ecofriendly and uses zero energy. This system is more reliable and durable. Farmers have gained a confidence that solar can be comparable with diesel pump in capacity and can replace the diesel motors.


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