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- https://bio.libretexts.org/Sandboxes/tholmberg_at_nwcc.edu/Introduction_to_Environmental_Science/4%3A_Ecosystems_and_the_Biosphere/4.2%3A_Biogeochemical_CyclesEnergy flows directionally through ecosystems, entering as sunlight (or inorganic molecules for chemoautotrophs) and leaving as heat during energy transformation between trophic levels. Rather than fl...Energy flows directionally through ecosystems, entering as sunlight (or inorganic molecules for chemoautotrophs) and leaving as heat during energy transformation between trophic levels. Rather than flowing through an ecosystem, the matter that makes up organisms is conserved and recycled. Because geology and chemistry have major roles in the study of these processes, the recycling of inorganic matter between living organisms and their nonliving environment are called biogeochemical cycles.
- https://bio.libretexts.org/Courses/Gettysburg_College/01%3A_Ecology_for_All/20%3A_Biogeochemical_Cycles/20.06%3A_Eutrophication_and_Dead_Zones.
- https://bio.libretexts.org/Courses/Bakersfield_College/Introduction_to_Environmental_Science_3e/15%3A_Cycling_of_Matter_in_the_Earth_System/15.06%3A_Eutrophication_and_Dead_Zones.
- https://bio.libretexts.org/Courses/Fresno_City_College/Introduction_to_Conservation_Biology/05%3A_Ecosystems/5.03%3A_Biogeochemical_CyclesBiogeochemical cycles represent the movement of chemical elements through water, air, soil, rocks, and organisms. Carbon cycles slowly between the ocean and land, but it moves quickly from the atmosph...Biogeochemical cycles represent the movement of chemical elements through water, air, soil, rocks, and organisms. Carbon cycles slowly between the ocean and land, but it moves quickly from the atmosphere to organisms (through photosynthesis) and back to the atmosphere (through cellular respiration). The nitrogen cycle and phosphorus cycles are other key biogeochemical cycles. Excess nutrients can disrupt aquatic ecosystems through eutrophication.
- https://bio.libretexts.org/Workbench/General_Ecology_Ecology/Chapter_20%3A_Biogeochemical_Cycles/20.3%3A_Eutrophication_and_Dead_Zones.
- https://bio.libretexts.org/Courses/Coastline_College/ENVS_C100%3A_Environmental_Science_(Hoerer)/03%3A_Ecology/3.04%3A_Ecosystems/3.4.03%3A_Biogeochemical_CyclesBiogeochemical cycles represent the movement of chemical elements through water, air, soil, rocks, and organisms. Carbon cycles slowly between the ocean and land, but it moves quickly from the atmosph...Biogeochemical cycles represent the movement of chemical elements through water, air, soil, rocks, and organisms. Carbon cycles slowly between the ocean and land, but it moves quickly from the atmosphere to organisms (through photosynthesis) and back to the atmosphere (through cellular respiration). The nitrogen cycle and phosphorus cycles are other key biogeochemical cycles. Excess nutrients can disrupt aquatic ecosystems through eutrophication.
- https://bio.libretexts.org/Courses/University_of_Pittsburgh/Environmental_Science_(Whittinghill)/05%3A_Cycling_of_Matter_in_the_Earth_System/5.07%3A_Eutrophication_and_Dead_Zones.
- https://bio.libretexts.org/Courses/Bakersfield_College/Introduction_to_Environmental_Science/15%3A_Cycling_of_Matter_in_the_Earth_System/15.06%3A_Eutrophication_and_Dead_Zones.
- https://bio.libretexts.org/Bookshelves/Ecology/Environmental_Science_(Ha_and_Schleiger)/02%3A_Ecology/2.04%3A_Ecosystems/2.4.03%3A_Biogeochemical_CyclesBiogeochemical cycles represent the movement of chemical elements through water, air, soil, rocks, and organisms. Carbon cycles slowly between the ocean and land, but it moves quickly from the atmosph...Biogeochemical cycles represent the movement of chemical elements through water, air, soil, rocks, and organisms. Carbon cycles slowly between the ocean and land, but it moves quickly from the atmosphere to organisms (through photosynthesis) and back to the atmosphere (through cellular respiration). The nitrogen cycle and phosphorus cycles are other key biogeochemical cycles. Excess nutrients can disrupt aquatic ecosystems through eutrophication.
