2.2 Measuring abiotic components of the system. 2.2.1 List the significant abiotic (physical)...
Transcript of 2.2 Measuring abiotic components of the system. 2.2.1 List the significant abiotic (physical)...
![Page 1: 2.2 Measuring abiotic components of the system. 2.2.1 List the significant abiotic (physical) factors of an ecosystem. 2.2.2 Describe and evaluate.](https://reader035.fdocuments.us/reader035/viewer/2022062516/56649e605503460f94b5aa24/html5/thumbnails/1.jpg)
2.2 Measuring abiotic components of the system
![Page 2: 2.2 Measuring abiotic components of the system. 2.2.1 List the significant abiotic (physical) factors of an ecosystem. 2.2.2 Describe and evaluate.](https://reader035.fdocuments.us/reader035/viewer/2022062516/56649e605503460f94b5aa24/html5/thumbnails/2.jpg)
2.2.1 List the significant abiotic (physical) factors of an ecosystem.
2.2.2 Describe and evaluate methods for measuring at least three abiotic (physical) factors within an ecosystem
![Page 3: 2.2 Measuring abiotic components of the system. 2.2.1 List the significant abiotic (physical) factors of an ecosystem. 2.2.2 Describe and evaluate.](https://reader035.fdocuments.us/reader035/viewer/2022062516/56649e605503460f94b5aa24/html5/thumbnails/3.jpg)
Ecosystems can be divided up as:
Marine – Sea, estuaries, salt marshes, and mangroves due to high salt content
Freshwater – Rivers, lakes, and wetlands
Terrestrial – Land-based
![Page 4: 2.2 Measuring abiotic components of the system. 2.2.1 List the significant abiotic (physical) factors of an ecosystem. 2.2.2 Describe and evaluate.](https://reader035.fdocuments.us/reader035/viewer/2022062516/56649e605503460f94b5aa24/html5/thumbnails/4.jpg)
Marine Factors: Salinity pH Temperature Dissolved
Oxygen Wave Action
![Page 5: 2.2 Measuring abiotic components of the system. 2.2.1 List the significant abiotic (physical) factors of an ecosystem. 2.2.2 Describe and evaluate.](https://reader035.fdocuments.us/reader035/viewer/2022062516/56649e605503460f94b5aa24/html5/thumbnails/5.jpg)
Freshwater Factors:
Turbidity pH Temperature Dissolved
Oxygen Flow Velocity
![Page 6: 2.2 Measuring abiotic components of the system. 2.2.1 List the significant abiotic (physical) factors of an ecosystem. 2.2.2 Describe and evaluate.](https://reader035.fdocuments.us/reader035/viewer/2022062516/56649e605503460f94b5aa24/html5/thumbnails/6.jpg)
Terrestrial Factors:
Light Intensity Wind Speed Temperature Particle Size Slope/Aspect Soil Moisture Drainage Mineral Content
![Page 7: 2.2 Measuring abiotic components of the system. 2.2.1 List the significant abiotic (physical) factors of an ecosystem. 2.2.2 Describe and evaluate.](https://reader035.fdocuments.us/reader035/viewer/2022062516/56649e605503460f94b5aa24/html5/thumbnails/7.jpg)
Light: Equipment: A
light meter Method: Multiple
times a day with same direction and angle. Must not be shaded.
![Page 8: 2.2 Measuring abiotic components of the system. 2.2.1 List the significant abiotic (physical) factors of an ecosystem. 2.2.2 Describe and evaluate.](https://reader035.fdocuments.us/reader035/viewer/2022062516/56649e605503460f94b5aa24/html5/thumbnails/8.jpg)
Temperature: Equipment:
Digital Thermometer
Method: For air, water and soil. Soil needs to be standard depth, not too shallow.
![Page 9: 2.2 Measuring abiotic components of the system. 2.2.1 List the significant abiotic (physical) factors of an ecosystem. 2.2.2 Describe and evaluate.](https://reader035.fdocuments.us/reader035/viewer/2022062516/56649e605503460f94b5aa24/html5/thumbnails/9.jpg)
pH: Equipment: pH
Meter or probe Method: Cleaned
between readings, and at same depth. Soil uses soil test kit – indicator added and compared to chart.
![Page 10: 2.2 Measuring abiotic components of the system. 2.2.1 List the significant abiotic (physical) factors of an ecosystem. 2.2.2 Describe and evaluate.](https://reader035.fdocuments.us/reader035/viewer/2022062516/56649e605503460f94b5aa24/html5/thumbnails/10.jpg)
Wind: Equipment:
Anemometer Method:
Observing objects and relating to beaufort scale. Don’t block wind. Gusty wind may cause variations.
![Page 11: 2.2 Measuring abiotic components of the system. 2.2.1 List the significant abiotic (physical) factors of an ecosystem. 2.2.2 Describe and evaluate.](https://reader035.fdocuments.us/reader035/viewer/2022062516/56649e605503460f94b5aa24/html5/thumbnails/11.jpg)
Particle Size: Equipment:
Sieves Method: Large:
Individually measured and averaged Small: Sieves Smallest: Sedimentation Optical: Light scattered by suspension
![Page 12: 2.2 Measuring abiotic components of the system. 2.2.1 List the significant abiotic (physical) factors of an ecosystem. 2.2.2 Describe and evaluate.](https://reader035.fdocuments.us/reader035/viewer/2022062516/56649e605503460f94b5aa24/html5/thumbnails/12.jpg)
Slope/Aspect: Equipment:
Clinometer / Compass
Method: tangent of slope x 100
![Page 13: 2.2 Measuring abiotic components of the system. 2.2.1 List the significant abiotic (physical) factors of an ecosystem. 2.2.2 Describe and evaluate.](https://reader035.fdocuments.us/reader035/viewer/2022062516/56649e605503460f94b5aa24/html5/thumbnails/13.jpg)
Soil Moisture: Equipment:
Scale and oven Method: Mass
before and after heating. Not too hot, and keep final mass after stabilized after heatings.
![Page 14: 2.2 Measuring abiotic components of the system. 2.2.1 List the significant abiotic (physical) factors of an ecosystem. 2.2.2 Describe and evaluate.](https://reader035.fdocuments.us/reader035/viewer/2022062516/56649e605503460f94b5aa24/html5/thumbnails/14.jpg)
Mineral Content: Equipment:
Scale and Oven Method: Mass
before and after heating. Very hot (500-1000 C) for hours. Depends on minerals.
![Page 15: 2.2 Measuring abiotic components of the system. 2.2.1 List the significant abiotic (physical) factors of an ecosystem. 2.2.2 Describe and evaluate.](https://reader035.fdocuments.us/reader035/viewer/2022062516/56649e605503460f94b5aa24/html5/thumbnails/15.jpg)
Flow velocity: Equipment:
Floating Object or flow-meter
Method: Object is timed. Meter is inserted just below surface for several readings. Taken multiple parts and times of year.
![Page 16: 2.2 Measuring abiotic components of the system. 2.2.1 List the significant abiotic (physical) factors of an ecosystem. 2.2.2 Describe and evaluate.](https://reader035.fdocuments.us/reader035/viewer/2022062516/56649e605503460f94b5aa24/html5/thumbnails/16.jpg)
Salinity: Equipment:
Datalogger or calculator
Method: Measure electrical conductivity. High salt content is higher density than lower salt content.
![Page 17: 2.2 Measuring abiotic components of the system. 2.2.1 List the significant abiotic (physical) factors of an ecosystem. 2.2.2 Describe and evaluate.](https://reader035.fdocuments.us/reader035/viewer/2022062516/56649e605503460f94b5aa24/html5/thumbnails/17.jpg)
Dissolved Oxygen: Equipment: Oxygen
sensitive electrodes or test kit
Method: Avoid oxygen in air. Kit based on oxygen reacting with iodide ions, and acid added to release them.
![Page 18: 2.2 Measuring abiotic components of the system. 2.2.1 List the significant abiotic (physical) factors of an ecosystem. 2.2.2 Describe and evaluate.](https://reader035.fdocuments.us/reader035/viewer/2022062516/56649e605503460f94b5aa24/html5/thumbnails/18.jpg)
Wave Action: Equipment:
Dynamometer Method: Measures
force of waves. Average results must be taken due to changes in tide and wave strength over time.
![Page 19: 2.2 Measuring abiotic components of the system. 2.2.1 List the significant abiotic (physical) factors of an ecosystem. 2.2.2 Describe and evaluate.](https://reader035.fdocuments.us/reader035/viewer/2022062516/56649e605503460f94b5aa24/html5/thumbnails/19.jpg)
Turbidity: Equipment:
Secchi disc Method: Put to
depth where it just disappears. Avoid glare, and use shady side of boat.