BRAINCAKEMeasuring Abiotic Factors in the Field
The distribution of organisms is strongly affected by abiotic factors (the non-living conditions of a habitat). When sampling with quadrats or transects, these factors are measured at each sampling point so that they can be correlated with species distribution.
Common abiotic factors and how they are measured:
• Light intensity: a light meter (lux meter) or light sensor
• Temperature: a thermometer or temperature probe (air, soil or water)
• Soil pH: a pH probe or meter, or soil mixed with water and universal indicator
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More in Ecosystems
- Nitrification and Denitrification
- The Carbon Cycle
- Succession
- Primary Succession
- Secondary Succession
- Deflected Succession
- Sampling Distribution and Abundance
- Quadrats and Transects
All 21 lessons in Ecosystems · All OCR A-level Biology topics