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IB Environmental Systems and Societies/Measuring abiotic components of the system
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2.2 Measuring abiotic components of the system
2.2.1 List the significant abiotic (physical)factors of an ecosystem.
PH, Temperature, Light intensity, Salinity, Turbidity, Dissolved oxygen
2.2.2 Describe and evaluate methods for measuring at least three abiotic (physical) factors within an ecosystem.
PH - PH meter
Temperature - Thermometer (C degrees)
Dissolved oxygen - Oxygen meter (PPM)
Light intensity - Light meter (LUX)
Salinity - Salinity meter (ppt)
Turbidity - Secchi circle (Visibility)
marine—salinity, dissolved oxygen, wave action
freshwater—turbidity, temperature, dissolved oxygen
terrestrial—temperature,wind speed, particle size, slope, soil moisture, drainage, mineral content.