General Overview and Random Plots

Materials

  • LabQuest2
  • Temperature Probe
  • Relative Humidity Probe
  • Anemometer Sensor
  • Soil Moisture Probe
  • Soil Thermometer
  • Measuring Tape / Ruler
  • Flags / Plot Markers
  • Wash Bottle w/ Distilled Water
  • Sheets of Paper/Plastic/Cloth (to put soil on temporarily)
  • Hand Shovel
  • Paper Towels
  • Images of Japanese Beetle Grubs and Adults For Visual Identification
  • Digital Camera

 

Tip:  Prior to your “field day,” be sure to charge your LabQuest2 Unit for 8 hours. 

 

General Notes of Care:

  • Return to probes/sensors to storage bags when they are not in use.
  • Gently wipe soil temperature and soil moisture probes clean with a damp paper towel after use.
  • Do not store LabQuest2 in your vehicle or other location where excessive temperatures are possible.
  • As a courtesy, return the sampling kit to your mentor or to the Unit secretary when you are finished.  There may be other students waiting to complete their data collection.

 

Step 1:  Creation of Random Plots & Random Sampling Points at Your Site

Materials

  • Measuring Tape / Ruler
  • Flags / Plot Markersstudent plot

Methods

--Collect data from 3, randomly created, 2 m x 2 m plots.  The importance of creating your plots randomly is that you reduce the amount of bias introduced into your project design.  There are a number of ways random plots can be established, but you will use a random walk method.

                                                Site plot: Photo courtesy of Alex Oliveri, ENVS student, ESC

--Enter your study site, meander a bit, and toss a brightly colored object into your site.  At the location where object falls, place a flag, which will act as the marker for the NW corner of your plot.  Using a flag (or other object), mark the remaining 3 corners of your first plot (NE, SW, and SE).

 

Tip:  If you do not have a compass to use to determine the other corners of your plot, you can use a sheet of paper.  Place the corner of the paper on the corner of your plot and use the            
straight edges of the paper as a guide, directing you to the other
corners of your plot.

student plot--Randomly select 3 sample points within your plot.  Toss a brightly colored object into your plot.  Mark its location and toss the object 2 additional times into the plot (marking the location of each toss).  You have identified the 3 points at which you will collect soil and beetle data.

 

 

 

Site plot: Photo courtesy of Jenn Stalters, ENVS student, ESC



--After completing data collection from your first plot, randomly create your next plot(s), following the process described above, and complete the sampling process.