Biogeochemical Cycles and Human Impacts Essay Sample

Describe the steps in the carbon cycle as an example of one biogeochemical cycle.

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Changes in land use over the past centuries have affected the biogeochemical cycles of carbon and nutrients in the coastal zone strongly (Nixon ; Doney ; Hooke and Martín-Duque ). In particular, human activity has altered the watershed export of organic and inorganic carbon, carbonate alkalinity, acids and nutrients to the ocean, affecting pH (Aufdenkampe et al. ). However, these impacts are largely restricted to the coastal ocean, where these inputs are received.

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Global Biogeochemical Cycle Of Aluminium Environmental Sciences Essay

Contained in these minerals are six chemical elements essential to the sustenance of life on planet Earth: hydrogen, oxygen, carbon, nitrogen, phosphorus, and sulfur. These are the elementsinvolved in biogeochemical cycles, through which they continually are circulated between the living and nonliving worldsthat is, between organisms, on the one hand, and the inorganic realms of rocks, minerals, water, and air, on the other (see Biogeochemical Cycles).

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Background
A biogeographical cycle is defined as the flow of chemical elements and compounds between living organisms
It is essentially the cycling of substances through various biotic and abiotic factors
Affectionately termed, the circle of life
The Carbon Cycle
The carbon cycle is defined as the biogeochemical cycle by which carbon is exchanged among the biosphere, pedosphere, geosphere, hydrosphere, and atmosphere of the Earth.
The carbon cycle is key for the sustaining of life
The main parts of the carbon cycle are :The atmosphere
The terrestrial biosphere
The oceans
The sediments
The Earth's interior (carbon from the Earth's mantle and crust)
Makenna Presnell
Describe the biogeochemical cycles of carbon and nitrogen.

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Global Biogeochemical Carbon Cycling » Essay Raptor

Biogeochemical cycles are the processes that occur naturally and recycle the nutrients in different chemical forms from the non-living ecosystem to living organisms and then back to the non-living ecosystem.

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see also Biogeochemical Cycles; Community; Desert; Estuaries; Forest, Boreal; Forest, Temperate; Forest, Tropical; Landscape Ecology; Plankton; Population Dynamics