GROUP 4 PROJECT
description
Transcript of GROUP 4 PROJECT
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
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?
COLLECTIO
N AND
ANALYSIS OF
QUANTITATI
VE DATA
DISTANCE FROM WATER AND MOISTURE CONTENT
PH OF SOIL IN RELATION TO MOISTURE CONTENT
HEAT CAPACITY AND MOISTURE CONTENT
SOIL ORGANIC MATTER AND MOISTURE CONTENT
Comparing All Different Factors
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
PROCESS
DISTANCE: 0 METERS• Mosses• Roots• Very moist• 2 small ferns• Dark soil• Pine needles• Angiosperm seeds• More sunlight
DISTANCE: 1 METER• Less moss• Very moist• Rocks• More tree branches• Deciduous (3) and coniferous leaves
DISTANCE: 2 METERS• Pine cones (7)• Tree roots• 7 deciduous leaves• Pine needles• Less direct sunlight
DISTANCE: 3 METERS• More direct sunlight• Drier soil• Soil was loose and less compact• More debris• Tree branches• Pine cones• Some moss
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
CALCULATIONS & LA
B
WORK
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
SAMPLE CALCULATION: MOISTURE CONTENT
+/-0.02
SAMPLE CALCULATION: SOIL ORGANIC MATTER
LIMITA
TIONS AND
REFLECTIO
N
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
FURTHER EXPERIMENTATION• Simpsons Diversity Index
• Testing multiple locations
• Testing samples of matter other than soil (ex. Leaves)
THANK YO
U!!
Thank you!
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