Section 3
Biogeochemical Cycles
Book
Version 32
By Boundless
By Boundless
Boundless Biology
Biology
by Boundless
6 concepts
Biogeochemical Cycles
The elemental components of organic matter are cycled through the biosphere in an interconnected process called the biogeochemical cycle.
The Water (Hydrologic) Cycle
Water has a large effect on climate, ecosystems, and living organisms and is continuously cycled through the environment.
The Carbon Cycle
Carbon enters the atmosphere in the form of carbon dioxide via the carbon cycle and returns to organic carbon via photosynthesis.
The Nitrogen Cycle
Nitrogen is cycled through the earth via the multi-step process of nitrogen fixation, which is carried out by bacteria.
The Phosphorus Cycle
Phosphorus is an essential element of living things, but, in excess, it can cause damage to ecosystems.
The Sulfur Cycle
Sulfur is deposited on land as precipitation, fallout, and rock weathering, and reintroduced when organisms decompose.