The primary source of irrigation in Assam is rivers. The Brahmaputra River is the main source of irrigation in Assam, followed by the Barak River. These rivers are used to irrigate rice fields, which are the main crop in Assam. Canals are also used for irrigation, but to a lesser extent than rivers. Groundwater is not a major source of irrigation in Assam, as it is not available in all areas. Rainwater harvesting is also not a major source of irrigation in Assam, as the rainfall is not evenly distributed throughout the year.
Rivers are the primary source of irrigation in Assam because they are abundant and have a high flow rate. The Brahmaputra River is the largest river in India and the third largest river in Asia. It flows through Assam from north to south. The Barak River is the second largest river in Assam. It flows through Assam from west to east. These rivers are used to irrigate rice fields, which are the main crop in Assam.
Canals are also used for irrigation, but to a lesser extent than rivers. Canals are man-made waterways that are used to transport water from rivers to fields. Canals are not as efficient as rivers for irrigation, as they lose water through evaporation and seepage.
Groundwater is not a major source of irrigation in Assam, as it is not available in all areas. Groundwater is water that is found underground in aquifers. Aquifers are layers of rock or sand that can store water. Groundwater is not available in all areas, as it is dependent on the geology of the area.
Rainwater harvesting is also not a major source of irrigation in Assam, as the rainfall is not evenly distributed throughout the year. Rainwater harvesting is the process of collecting rainwater and storing it for later use. Rainwater harvesting is not a major source of irrigation in Assam, as the rainfall is not evenly distributed throughout the year.