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25
Feb

Rice ecosystems in India

Rice is the staple food for more than 65% of population in India. It is cultivated in several agroecological regions. Rice farming is highly widespread and practiced under diversified soil and climatic conditions; hence there are wide variations in variety, methods of cultivation and. soil and water management practices followed. Rice ecosystems in India can be grouped into following categories.

• Irrigated
• Rainfed Rice Eco System: (i) Upland
25
Jun

Tidal Wetland Rice Ecosystem

 

1. Tidal wetlands are the areas where the land meets the sea. 2. These areas are periodically flooded by seawater during high or spring tides or, are affected by the cyclic changes in water levels caused by the tidal cycle. 3. Salt marshes and mud flats are some typical types of tidal
25
Jun

Deep Water Rice Ecosystem

  

1. About 13 million hectares are under deep water rice ecosystem. Mostly in South Asia. 2. These are the regions where rice grows under rainfed dryland or shallow flooding conditions for 1-3 months and is then subjected to flooding with water depth of more than 50 cm for a month or longer. 3. These areas are found in the river basins of Ganges and Brahmaputra in India a
25
Jun

Flood Prone Rice Ecosystem

1. Flood-prone ecosystems are prevalent in South and Southeast Asia, and are characterized by periods of extreme flooding and drought.

2. Yields are low and variable. Flooding occurs during the wet season from June to November, and rice varieties are chosen according to the power of tolerance to submersion.

3. Flood Prone Rice ecosystems in India represent 26% of total cultivated &nbs

25
Jun

Rainfed Upland Rice Eco System

 

1. Upland Rice Ecosystems are found in Asia, Africa, and Latin America. 2. In India, the total area under upland rainfed rice is about 6.0 million hectares, which accounts13.5% of the total area under rice crop in the country. 3. Upland rice areas lies in Eastern zone comprising of Assam, Bihar, Eastern M.P., Oriss
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