Question

list out the agricultural and environmental significants of deltas and flood plains​

Answer 1

Answer:

About Flooding & Floodplains: Benefits and Hazards

Definition & Causes

Floodplains are the relatively flat lands adjacent to a body of water, such as a river or stream, that become flooded (inundated with water) when channel capacity is exceeded and overtopping occurs.

Other areas in the county can be subject to flooding as well. A commonly overlooked cause of flooding is often as simple as a storm drain blocked by debris.

Benefits

Floodplains are dynamic natural systems. The natural processes of periodic flooding, accompanied by erosion and deposition, bring changes to the topography, soils, vegetation, and physical features (such as meanders, braided channels and oxbow lakes) within these areas over time.

Aerial

Floodplains provide a wide range of benefits to the ecosystem and community that include:

1. Flood storage and erosion control–offer a broad area for streams and rivers to spread out and accommodate temporary storage of flood water, reducing flood peaks and erosion potential

2. Water quality maintenance – reducing sediment loads, filtering nutrients and impurities, and moderating water temperature

3. Groundwater recharge

4. Biological productivity – providing fertile soils with high rate of plant growth and diversity, richer agricultural harvests, and healthier forests

5. Habitat for a variety of fish and wildlife, including rare and endangered species

6. Recreational opportunities – providing areas for active and passive activities, supporting the economic base

7. Open space.