GROUP 4 PROJECT
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Transcript of GROUP 4 PROJECT
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GROUP 4 PR
OJECT
H A Y L E Y , ME H A R , F
R A S E R , MI C
H A E L J AS P A L &
R Y A N
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PURPOSEWhat is the effect of distance from a water source (due to change in moisture content), on energy in the surrounding environment – looking at the heat capacities, pH and soil organic matter?
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COLLECTIO
N AND
ANALYSIS OF
QUANTITATI
VE DATA
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DISTANCE FROM WATER AND MOISTURE CONTENT
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PH OF SOIL IN RELATION TO MOISTURE CONTENT
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HEAT CAPACITY AND MOISTURE CONTENT
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SOIL ORGANIC MATTER AND MOISTURE CONTENT
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Comparing All Different Factors
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OUR CONCLUSIONS• Increase Moisture Content towards
Waterfall• Both pH and Soil Organic Matter
increased, whereas Heat Capacity decreased
• Inverse Relationship• Direct relationship between pH and Soil
Organic Matter
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PROCESS
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DISTANCE: 0 METERS• Mosses• Roots• Very moist• 2 small ferns• Dark soil• Pine needles• Angiosperm seeds• More sunlight
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DISTANCE: 1 METER• Less moss• Very moist• Rocks• More tree branches• Deciduous (3) and coniferous leaves
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DISTANCE: 2 METERS• Pine cones (7)• Tree roots• 7 deciduous leaves• Pine needles• Less direct sunlight
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DISTANCE: 3 METERS• More direct sunlight• Drier soil• Soil was loose and less compact• More debris• Tree branches• Pine cones• Some moss
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DISTANCE: 4 METERS• Grass is present• Moss• Pine needles• Pine cone bits• Possible angiosperm seedlings• Rocks• ~15% direct sunlight• 11 pinecones• Less organic soil matter – trail route (more compact)• Temperature probe was not fully in drier soil
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CALCULATIONS & LA
B
WORK
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SAMPLE CALCULATION: HEAT CAPACITY𝑄= 𝑚𝑐∆𝑇
𝑄= 𝐻𝑒𝑎𝑡 𝐸𝑛𝑒𝑟𝑔𝑦 ሺ𝐽𝑜𝑢𝑙𝑒𝑠ሻ,𝑚 = 𝑀𝑎𝑠𝑠,𝑐= 𝑆𝑝𝑒𝑐𝑖𝑓𝑖𝑐 ℎ𝑒𝑎𝑡 𝑐𝑎𝑝𝑎𝑐𝑖𝑡𝑦,∆𝑇= 𝐶ℎ𝑎𝑛𝑔𝑒 𝑖𝑛 𝑡𝑒𝑚𝑝𝑒𝑟𝑎𝑡𝑢𝑟𝑒 300𝑠 × 150𝐽𝑠−1 = 0.02585𝑘𝑔 × 𝑐 × 3.5𝐾
𝑐= 4.97 × 105𝐽𝑘𝑔−1𝐾−1
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SAMPLE CALCULATION: MOISTURE CONTENT
+/-0.02
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SAMPLE CALCULATION: SOIL ORGANIC MATTER
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LIMITA
TIONS AND
REFLECTIO
N
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LIMITATIONS, IMPACTS, AND IMPROVEMENTS
Limitation Impact on Data
How To Improve
Assumption of Constant Light Intensity
• Temperature• Impact on biodiversity• Evaporation
• Constant light conditions
• Measure light intensity as a factor
Assumptions of Constant Energy Loss and Even Energy Distribution (150 Watts to each soil sample)
• Processed data will be less precise (systematic error)
• Increase in number of trials
• Controlled environment
Soil Compaction was not taken into account in data analysis
• More compact soil will have greater heat retention
• Collect samples from more isolated areas with no human interference
Sample Size • Did not get a full, accurate idea of soil in the environment
• Take more samples of soil to reduce random errors
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FURTHER EXPERIMENTATION• Simpsons Diversity Index
• Testing multiple locations
• Testing samples of matter other than soil (ex. Leaves)
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THANK YO
U!!
Thank you!
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ACKNOWLEDGEMENTSFraser Christian: Measurement and Calculation of heat
capacity, SOM & Moisture Data collectionMichael Ji: Measurement of Heat Capacity, Ideas for further
investigation, SOM experimentation, Theorizing and hypothesizingMehar Kang: Measurement of pH, SOM, and Moisture Content;
Presentation Preparation Ryan Matsuda: Soil sample collection, moisture content
experimentation, SOM experimentation, Evaluating limitationsHayley McIntyre: Soil sample collection, Calculation of SOM &
moisture content, Powerpoint & picturesJaspal Sanghera :Soil sample collection, SOM and Moisture
content experimentation