how did the people of funan increase agricultural production?

The people of Funan increased agricultural production primarily through a sophisticated system of water storage and irrigation. They developed an extensive inland irrigation system that enabled the successful cultivation of rice surpluses, supported by an elaborate network of canals that also facilitated transportation. This advanced water management allowed for more productive rice farming, which was the economic foundation of Funan. The population was concentrated along the rivers of the Mekong Delta, a natural region conducive to fishing and rice cultivation, which was enhanced by these irrigation techniques. The surplus rice production supported both local needs and trade, facilitating economic growth in the region.