(par 3. 3 ) Flow of nutrients, nitrogen, carbon and water through the ecosystem
(Sources: http://www.bbc.co.uk/schools/gcsebitesize/geography/ecosystems/index.shtml & http://en.wikipedia.org/wiki/Biogeochemical_cycle ) Ecosystem Cycles: Energy and Nutrient Transfers All ecosystems depend on two important processes: The flow of energy, and the recycling of nutrients. These processes take place in Energy and nutrient transfers. Such a transfer takes place in a biogeochemical cycle – a circuit or pathway by which a chemical element or molecule moves through […]
(par 3. 3 ) A graphic depiction of the Biogeochemical Cycles
http://homepages.nyu.edu/~pet205/biogeochem1.html BIOGEOCHEMICAL CYCLES Biogeochemical Cycle : the cycling of chemical elements required by life between the living and nonliving parts of the environment. Some examples of these chemical elements are H2O, P, S, N2, O2 and C. These elements cycle in either a gas cycle or a sedimentary cycle; some cycle as both a gas […]
(par 3. 3 ) Cycles of Nature
http://www.uen.org/themepark/cycles/nature.shtml Nature’s cycles have to do with how the earth renews itself. The living things within an ecosystem interact with each other and also with their non-living environment to form an ecological unit that is largely self-contained. Sometimes this renewal process is gradual and gentle. Sometimes it is violent and destructive. Nevertheless, ecosystems contain within […]