How to Calculate Tree Basal Area

••• Yulia-Images/Moment/GettyImages

Tree basal area is the cross-sectional area of a tree's trunk at 1.3 meters off the ground, which is approximately chest height. It is used to determine the volume of the tree, the productivity of the forest and competition between trees for resources.

    Measure 1.3 meters up the tree trunk from the ground.

    Measure the circumference of the tree at 1.3 meters by wrapping the measuring tape around the trunk of the tree.

    Calculate the radius from the circumference by dividing the circumference by 2?. For example, if the circumference is 10 meters, dividing by 2? gives you a radius of 1.59 meters.

    Calculate the basal area by squaring the radius and multiplying by ? (Basal Area = ? * R^2). If the radius were 1.59 meters, the basal area would be 7.94 meters squared.

    If you want to calculate the basal area directly from the circumference, you can use the following formula where C is the circumference: Basal Area = ? * (C / 2?) ^ 2.

    Things You'll Need

    • Measuring tape
    • Calculator

Related Articles

How to Calculate Perimeter and Area Ratio
How to Find Volume in Meters Cubed
How to Find the Volume of a Triangular Pyramid
How to Calculate the Diameter of a Circle From a Linear...
How to Find the Radius of a Sphere When Given the Volume
How to Calculate Volume From Centimeters
How to Calculate the Height of a Cone From the Volume
How to Find the Volume of a Sphere in Terms of Pi
How to Calculate Volume of a Circular Cylinder
How to Calculate Diameter to Square Feet
Pine Tree Diameter Vs. Age
How to Calculate Square Feet in a Triangle
How to Find a Cubic Foot
How to Find the Slope in a Circle
How to Find the Area of Squares
How to Calculate Volume of a Rectangular Prism
How to Find the Cross Sectional Area of a Pipe
How to Find the Volume of a Semicircle
How to Convert 55 X 40 X 20 CM to Inches
How to Calculate Hectares

Dont Go!

We Have More Great Sciencing Articles!