o What were we looking at?o The Pit Crew studied soil patterns throughout the landscape.

oWhy we studied the soils?o To see how they change across the landscape. o To see if there were any correlations between soil and elevation.o To observe patterns between the soil and vegetation.

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I’mmmmm…. The map, I’m the map

o How did we do it?o Digging soil pits and collecting data from many horizons at different

elevations:o pH, color, texture, depth of horizon

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o What we found!

Depth of the horizons Average pH levels for pits 1-3

pH Indicator

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B2,

E B E B2, BB3 B4 C

B2.

The Next Steps…

- Determine age of soil layers and mineral particles.

- Controlled field tests to examine if relationship exists between soil texture/pH and plant diversity/abundance.

From left to right- John William, Hanna, Jenna, Tyler, Adina, Chris

Objectives

Identify factors that influence the diversity of plant species in different areas

See if the age of trees correspond to their diameter.

Understand how soil affects the diversity and distribution of plant species on a random transect line.

Map!

Upland Vegetative Sample Sites

ProcedureRandomly select site near soil pit on a transect line, and mark off a 2 x2 m plot.

Identify species and quantity of herbaceous plants and seedlings inside plot.

Measure light intensity, canopy cover and ground coverage in plot.

Identify species of trees, shrubs, and saplings falling within boundaries of a circular plot with a 5.6 m radius.

Find the age of identified trees around the plot by coring.

Procedure

Results:

Different plant species thrive in different habitats and at different elevations.

Light intensity, canopy coverage, ground coverage, slope, and elevation, among other variables, may affect distribution of plant species in area.

Possible correlation between diversity and pH 

Results of coring (taking core samples from the trees identified in the circular 0.01 hectare plots) show that diameter of the tree is not necessarily correlated with its age

Dia

met

er

The Next Steps…

- Isolate the variables in controlled experiments

- Sample more plots for more accurate data

-Relate the number of plants in plot to entire forest

The Stream Team investigated the health and condition

of the Potash Brook.

Research Questions

What are BMIs and what do they tell us about stream health?

How do the physical characteristics of the stream affect the living things found there?

How does the water chemistry change down the watershed?

Stream Sample Sites

Methods:

• Habitat Characteristics

• BMI sampling

• Discharge Calculations = (A X V)

• Chemical Analyses

Results Similar Discharge and Habitat as a downstream trend

Low Density of Population of Sensitive Organisms

Lower density and higher diversity upstream

the opposite relationship downstream

Moderate Levels of PO4 pollution

Thank YouThank You for a FUN filled Week…

And to all the parents for supporting our efforts!!!!!

Dynamic Watershed ResearchersDynamic Watershed Researchers

““The Dynamos”The Dynamos”

The End