EESA01H3 Lecture Notes - Hydrosphere, Smog, Nitrogen Fixation
1 Nov 2012
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Earth systems, ecosystem ecology, and global biogeochemical cycles. Add: increasing temperatures, more cloud cover, less solar radiation input, lower temperatures. Emergent properties are characteristics of a system not evident (perceivable) from its components alone or individually. In environmental science, the system that one might study has everything to do with the question being asked. Jennifer wu: ecosystems, hydrologic cycle (next class, global energy balance (next class, biogeochemical cycles: Systems have boundaries, but can overlap if they are open . Ecosystems: a broader step up from community ecology. Ecosystem: all organisms and nonliving entities that occur and interact in a particular area at the same time. Energy flows and matter cycles among these components. Jennifer wu: energy entering the system is processed and transformed, matter is recycled within ecosystem, resulting in outputs such as heat, water flow, and waste products. Photosynthesis occurs in the presence of light and chlorophyll:
