Student Research Reports
Open social media sharing options menu
CEDAR, symbol of longevity and power!
Organization(s):Srednja skola Mate Blazine Labin
Country:Croatia
Student(s):Borna Fable, Nensi Nadarević & Emili Šegon
Grade Level:Secondary School (grades 9-12, ages 14-18)
GLOBE Teacher:mira hrvatin
Contributors:IRENA - Istrian Regional Energy Agency
Croatian Forest Research Institute
Utility company “1. May”, Labin
Report Type(s):International Virtual Science Symposium Report
Protocols:
Presentation Poster:
View Document
Optional Badges:I am a Collaborator, I make an Impact, I work with a STEM Professional
Language(s):
Date Submitted:01/07/2017
In front of the school is a park with seven cedars planted 1982g. One day began the installation of geothermal park. Will this affect the damage of cedars?
The results showed:
Cedars age is 34 years, MUC is 94, Latitude: 45.0913 N Longitude: 14.1217 E Elevation: 263 m. Corresponding to our Globe site.
After installation situation is:
Part 1 - 323.753 m2 - 4 cedars, 11 holes filled with different soil, sand, limestone, dolomite.
Part 2 - 276.755 m2 - 2 cedar, 1 hole filled with cement and 2 water tanks.
Increase in height and volume is expected,damage of crown has increased, one cedar is dry.
Analysis of soil at two positions: type of soil is same, permeability is increased, pH value crossed from acidic to alkaline. Increasing the concentration of ammonium, iron, nitrate, nitrite and sulphate ions in particular in position 2. Changes in soil properties may have been caused by dissolution of materials from holes with action of rain.
One year is a relatively short period in the life of cedar, but we concluded it is possible that installation of geothermal park affected to slowed the growth and development of cedars.
We will follow cedars still hoping to survive.