Pond Eutrophication

How Pond Eutrophication Works

Aug 22, 2013 – Pond Eutrophication is commonly known as pond stagnation or perhaps another way it can be referred to is the natural aging process of a pond once a pond becomes nourished through the addition of either natural chemicals or those involving human interaction.

Natural Pond Eutrophication occurs when nutrients from the soil are released into the water caused primarily from rainfall and waves eroding the soil around the pond’s edge.

Human involvement can usually speed up this natural aging process of pond stagnation by releasing nutrients such as phosphorus, into ponds from run off. Other ways are through municipal and industrial sewage and or through increased soil erosion, which is the result of human and machine intervention.

Irrigation has a huge affect on water quality and so does the make up of the original water quality of a pond and all its characteristics such as soil type, geology.

The type of irrigation, crop grown and the different farming methods that may be used such as levels of fertilization, run off methods etc… will be a huge determinant of the ongoing health of a pond and its speed of eutrophication.

Irrigation water is either used by plants or it may evaporate from the soil but whatever the case a part of it is always returned to the source and in many cases this water is of lower quality. Farmer field water that runs off the irrigation fields carries with it enormous amounts of fertilizer, herbicides and pesticides; to the extent that these human added chemicals are used will depend on the level to which your pond will need assistance.

Wherever there is high concentration of nutrients you will find dense weeds and algae growth. Eventually what happens is the plants die and decompose causing dissolved oxygen levels in the water to decrease to unhealthy levels. With the depletion of oxygen less and less species can survive and the changes in the pond occurs. Fish kill becomes a major issue with pond eutrophication and eventually the pond will be filled with sediment and plant material.

The most important solution that can slow the pond eutrophication process down is to aerate your water. Pond aeration gets rid of excess nutrients in your water and provides additional levels of oxygen so that your fish and plants can breath; reducing fish kill and plant decomposition. Pond aeration is saving thousands of ponds a year and one company that is a leader in this field is Koenders Windmills Inc., the leading North American manufacturer of aeration windmills and electrical aeration systems for water aeration.