It is when slopes are being terraced(flat lands) to be able to build bunds to retain water for wet rice cultivation.
The topography of rice fields is typically flat or gently sloping to allow for efficient water management and irrigation. Rice fields are often terraced in hilly or mountainous regions to create level surfaces for water retention. Additionally, rice paddies are designed to facilitate flooding and draining to provide the necessary water conditions for rice cultivation.
Terraced fields are used on mountainous landscapes to reduce erosion and surface runoff,
Rice is grown in flooded fields; they look like tall grass when growing. California raises large amounts of rice in the Sacramento Valley; not only is it a commercial market, but it also is a favorite source of food for migratory wild life as they fly from one hemisphere to another during their annual treks. See website: Rice
Fields , paddies, and terraced-farming.
The rice-fields in Asia are commonly referred to as "paddy fields" or "rice paddies." These flooded fields are specifically designed for growing rice, a staple food in many Asian countries.
what is the lesson for the burning of the rice fields
Rice is grown in paddies, or paddy fields.
Trees and vegetation have to be cleared first when establishing paddy fields. If the land is hilly, then the landscape is terraced (like a series of steps) as paddy fields have to be flooded with water. Each field is dug out and earth is used to build dykes around the edges. Rice paddy fields are a substantial contributor of methane, a powerful greenhouse gas, as organic matter decomposes anaerobicly under the water. So paddy fields do change the environment in several ways.
Produced rice.
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the Indians worked the rice fields in southern colonies