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The lake exhibits characteristic features of a hydrosere, the succession from a fresh water surface with small pioneer plant species to a sub-climax vegetation of alder and willow. The climax vegetation of oak and beech woodland has not been achieved due to the impact of human activities of clearing grazing land, as well as grazing by red deer ...
Facultative lagoon (polishing pond) providing tertiary treatment after a constructed wetland in Hamburg-Allermöhe, Germany. Overflow from the facultative lagoon may be routed through one or more polishing ponds supporting lower populations of anaerobic micro-organisms and a higher proportion of aerobic organisms adapted to survival in lower concentrations of organic material.
Lake George, New York, an oligotrophic lake. The Trophic State Index (TSI) is a classification system designed to rate water bodies based on the amount of biological productivity they sustain. [1] Although the term "trophic index" is commonly applied to lakes, any surface water body may be indexed.
In geology, aquatic succession is the process in which a glacial lake dries up. Over the lifespan of a glacier it dissolves into a body of water. Aquatic succession is the continuing step of that solid water-turned-lake melting into the ground and further disappearing into limbo. The lakes sometime become underground lakes or rivers.
The biodiversity of a lentic system increases with the surface area of the lake or pond. This is attributable to the higher likelihood of partly terrestrial species of finding a larger system. Also, because larger systems typically have larger populations, the chance of extinction is decreased. [ 19 ]
The lake retention time for a body of water with the volume 2,000 m 3 (71,000 cu ft) and the exit flow of 100 m 3 /h (3,500 cu ft/h) is 20 hours.. Lake retention time (also called the residence time of lake water, or the water age or flushing time) is a calculated quantity expressing the mean time that water (or some dissolved substance) spends in a particular lake.
Recently completed infiltration basin for stormwater collection. An infiltration basin (or recharge basin) is a form of engineered sump [1] or percolation pond [2] that is used to manage stormwater runoff, prevent flooding and downstream erosion, and improve water quality in an adjacent river, stream, lake or bay.
English: Occurring over a period of time, pond succession is the process of sediment slowly building up in ponds. The sediment continues to fill in the pond until very little water is left. The sediment is composed of plants that have decomposed, building up layers of sediment. This often leaves an ecosystem with a marshy, bog type environment.