ES101 Lecture Notes - Lecture 8: Water Cycle, Transpiration, Calcium Carbonate
Document Summary
Nutrient cycles, biogeochemical cycles: nutrient atoms that organisms need to live, grow and reproduce are cycled in air, water, soil, rock. Lake erie has been considered a dead lake bc of fertilizers and pesticides2 that ring into the lake. Global cycle: collects, purifies, distributes and recycles the earths fixed supply of water. Water quality renewed: evaporation and subsequent precipitation naturally distil water. Human impacts on the cycle: decline water quality and quantity. We clear vegetation which increases runoff and reduces infiltration, increases flooding. The water cycle is speeding up bc of global warming, which could change weather patterns. Carbon cycle: how carbon is circulated through biosphere. Carbon is the basic element of organic compounds. Human impacts on the cycle: generated climate change.
