Search results
Results from the WOW.Com Content Network
These tupelo and cypress trees show the high-water mark of flooding. A floodplain or flood plain or bottomlands [1] is an area of land adjacent to a river. Floodplains stretch from the banks of a river channel to the base of the enclosing valley, and experience flooding during periods of high discharge. [2]
People fish at the Reno Bottoms in the Mississippi River a result of the degradation of the floodplain forests due to a decade of high water on the river, excess flooding and invasive species as ...
Floodplain restoration can also increase biodiversity by creating new or restoring degraded habitat and encourage growth of native species. [7] [8] Methods of wetland restoration in the floodplain, can help better water quality. [9] Reconnecting rivers to their floodplains promotes carbon storage in soil and regulates processes within soil. [8]
Flood waters provide much needed water resources in arid and semi-arid regions where precipitation can be very unevenly distributed throughout the year and kills pests in the farming land. Freshwater floods particularly play an important role in maintaining ecosystems in river corridors and are a key factor in maintaining floodplain ...
Really bad floods are caused by really brief spikes of river level. Slowing the water, soaking it up then letting it drain again once the peak is past, spreads the flow out over time and blunts the flood peak. Water levels during a flood tend to rise, then fall, very abruptly.
Why choose to build in flood zones? There are many reasons why the amount of building on land vulnerable to flooding is shooting up, but scarcity is a major driver.
The flood pulse concept explains how the periodic inundation and drought (flood pulse) control the lateral exchange of water, nutrients and organisms between the main river channel (or lake) and the connected floodplain. [1] The annual flood pulse is the most important aspect and the most biologically productive feature of a river's ecosystem.
In contrast, the alluvial plain is the larger area representing the region over which the floodplains have shifted over geological time. As the highlands erode due to weathering and water flow, the sediment from the hills is transported to the lower plain. Various creeks will carry the water further to a river, lake, bay, or ocean. As the ...