international research experiences for students(ires) · •bidoup nui ba national park -...
TRANSCRIPT
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International Research
Experiences for Students(IRES)
Da Lat, Vietnam
1 August – 9 August 2015 By Cheng Li Ling, Janelle Ong and Claudia Chua (Sec 3 2015)
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Overview Of iREs
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Where We Went
• Đà Lạt, Vietnam
• Capital of Lâm Đồng Province in southern Vietnam
• Bidoup Nui Ba National Park - Established in 2004, it is named
after the 2 highest peaks of the Langbiang plateau: Bidoup(2,287m) and Nui Ba(2,167m)
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The iREs Family
• consists of 32 iREs staff, volunteers, participants and teachers.
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4 Fields Of Research
•Soil Science
•Water & Atmospheric Chemistry
•Tree Identification & Biodiversity
•Dendrochronology
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Soil Science
By: Janelle
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Soil Group members
Rachel Khoa Janelle Crystal Nyung Ten
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Our Research Motivations:
Soil Science (Janelle)
Our goal was to find and collect the
data of the amount of nutrients in
the soil and the main composition
of the soil.
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Our Research Motivations:
Soil Science Equipment used:
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Different depths of soil recorded
Topsoil
10cm
20cm
30cm
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Experiments Carried Out:
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Our Research Methods:
Soil Science (Janelle)
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Our Results
•Soil Chemistry •Nutrients are essential to tree
growth (promotes the growth and health of the tree.)
•Temperature and moisture of the soil also largely affects the growth of the trees in the forest.
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Conclusion:
The data we collected was given to the Professor. He will compare to results from previous years. The results will be given to the forestry staff at BNBNP to aid them in their research.
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Water & Atmospheric Chemistry Claudia..
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Our Research Motivations:
Water & Atmospheric Chemistry (Why?)
• —Water carries nutrients e.g. calcium and
potassium which are needed for
photosynthesis
• —To know the different factors that affect
the biodiversity
• —To allow us the access to clean water
• —To understand the importance of water
as it contributes to tree growth
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Our Research Methods:
Water & Atmospheric Chemistry
(Equipment)
Dissolved Oxygen Probe
Turbidity Sensor pH Probe
Flow Rate Sensor
CO2 Sensor
Light Sensor
Relative Humidity
Probe
Temp Probe Venier
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Our Research Methods:
Water & Atmospheric Chemistry (Locations/Water)
Giang Ly Pond
Soil Pit #2
Hon Giao Stream Giang Ly
Natural Pit
Big Waterfall
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Our Research Methods:
Water & Atmospheric Chemistry (Lab Analysis)
★Calibration ○ Zero error
★2nd measurement of data
★Turbidity Data Collection
★Collation of Data
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Our Results
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Our Research Methods:
Water & Atmospheric Chemistry (Lab Analysis)
Sample Average Corrected
Turbidity
Giang Ly pond near
(Glen) 4.67
Giang Ly pond far
(Ashley) 5.00
S2 (Janelle) 86.20
Giang Ly natural water pit
(Paco) 0.00
Giang Ly natural water pit
(Coral) 3.30
Big Waterfall (Thiet) 7.22
Big George Waterfall 7.37
Hon Giao stream (Ling) 5.54
Hon Giao stream (Ten) 2.26
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Our Research Methods:
Water & Atmospheric Chemistry (Lab Analysis)
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Our Conclusion • Water and Atmospheric Chemistry:
• Water is a necessary factor to both atmosphere and biodiversity.
• The quality and condition of the water source affects the surrounding tree growth and atmospheric condition.
• water is essential to the biodiversity and that the factors change along with the biodiversity.
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•Linking back to our motivations
•Extension research question •how does the change in temperature of the water actually affect the micro-organisms?
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Dendrochronology By: Li Ling
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dendrochronology |ˌdendrōkrəˈnäləjē|
(noun)
the science or technique of dating events, environmental changes, and archaeological artifacts by using the characteristic patterns of annual growth rings in timber and tree trunks.
*source: New Oxford American Dictionary
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Thiet
Trung
Zang
Mr Koh
Summer
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Our Research Motivations:
Dendrochronology (Li Ling)
To examine the growth rates of the trees
in order to draw preliminary conclusions
on the trees' average age as well as their
habitat's natural conditions throughout
the years.
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Our Research Methods:
Dendrochronology (Li Ling)
1)Identification of suitable Coniferous trees
1)Tree Coring
1)Mounting
1)Sanding
1)Ring Counting
1)Creation of skeleton plots
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Increment Borer
Spoon
www.cspforestry.com
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Research Methods:
Identification Of Trees & Tree Coring
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Research Methods:
Mounting
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Research Methods:
Sanding
Sandpaper with different levels of roughness
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Research Methods:
Ring Counting annual growth rings
> 100 rings
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Our Tree Cores
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Research Methods:
Skeleton Plotting
a method of crossdating where ring-growth characteristics across many samples from a
homogeneous area is matched
Generally, the longer the line, the wider the annual growth ring & the more the tree grew in that particular year. (length of lines are subjective)
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Data Analysis
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Data Analysis
Sunlight Rainfall
Dendroclimatology
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• Oldest: 250 • Youngest: 77 • Average age of the trees cored(& suitable
for analysis) were about 190 years old. • Core samples and results were given to the
Professor. • Data would be compared to previous
years results and data across the fields of research
Our Results
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Conclusion
Growth rates of trees correlate.
No one element relating to weather/climate affects tree growth independently. (More studies are required to show the extent of how each element affects tree growth.)
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Overall significance Of our results
During our on-field research,
• Species of trees not usually found in BNBNP
With our data,
• Forestry department of the NP may be able to use it to track the conditions of the trees, and the state of their habitats
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The Experts & Our Research
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The Experts & Our Research
Our venue of analysis: Thang Long High School
for the Gifted
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The Experts & Our Research
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The Experts & Our Research
What do they actually do? •Aiding research in and out of lab • lectures •prompting questions •help the entire project to function (logistics etc)
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Global Interaction
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Our Reflections - What we learnt
•Determination •Adaptability & flexibility •Importance of forest conservation •Importance of symbiotic
relationships in nature (every environmental element affects the condition of the plants & wildlife)
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Thank You!