The Quick Nutrient Cycle
This phosphorous is absorbed by water in many ways. Cell membrane is made up of phosphorous and we can know that how this component is important for the life!
You know about DNA, RNA & ATP. Can you guess the relationship between the DNA, RNA & ATP and phosphorous? How they are related with phosphorous? They all are made up of Phosphorous only. DNA & RNA have phosphorous as their back bone and ATP is Adenosine Triphosphate you know!
Heterotrophs are always depends on autotrophs. So they easily get phosphorous from the plant products they eat. Even the fungi too can get the phosphorous from plant roots by symbiotic relationships.
Animal's bones, teeth and shells have phosphorous as a component. After the death of animals or plants the phosphate in their body will return to soil or water by the decomposition process and this process is done by the decomposers. So, automatically it will be taken up by another plant and go with the same cycle.
The process:
Weathering:
Removal of phosphate or break down of phosphate from rock is known as weathering. It is mostly done by rainfall.
The phosphorous cycle will be a continuous process. Phosphorous rich mines are targeted by humans. This mining of phosphate and using phosphate as fertilizer induces the phosphorous cycle. Phosphate applications to plants will reach human body through eating and it will be released to land again through human faces.
Eutrophication
Abundant amount of phosphorous will induce the growth of algae in the water with will results with over growth of the organism. Then the algae can use up all the oxygen in the water and kill other aquatic life. This is known as eutrophication.
Marine Birds Role in Phosphorous Cycle
Marine birds play an important role in phosphorous cycle. They eat the fish which has more phosphorous in its body. When the birds defecate, the phosphorous will be released to land. So, the marine phosphorous has now reached land. Their guano contains high levels of phosphorous and in this way marine birds return phosphorous from the ocean to the land. The guano is often mined and may form the basis of the economy in some areas.
Phosphorous is in sedimentary rock and not in the atmosphere. This way they are different from other nutrient cycles.
Because of soil erosion and the runoff of streams detach phosphorus from phosphate rock. This helps the plants to get phosphorous from soil.
Simply you can remember
Rock from phosphorous → soil → plants → animals → Land (because of the death of organism)
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