To study the plant population density by the quadrant method.
- Select a site for the study and hammer the nails on the site without harming the vegetation.
- Fix four nails in the form of a square.
- Each end of the nail is tied with the help of a thread making a 1m*1m quadrant.
- Nine more similar quadrants are made at the site of the study.
- The number of individuals of the species A present in the first quadrant is counted and the data is recorded in the table.
- The number of individuals of species A in other quadrants is also counted and the data is recorded in the table.
- Similarly, count the number of individuals of species B and C present in all the quadrants and record the data in the table.
- The density of the plant population is then calculated by the following equation:
D = S/Q
|Plant Species||Number of individuals in each quadrant||Total number of individuals (S)||Total number of quadrants (Q)||Density (D)=S/Q|
The population density is the highest for species A and the lowest for species C. The density value is expressed as the number of individuals per unit area.
Also Read: Parts of Plants
Learn more in detail about the plant population density, other related topics and experiments at BYJU’S Biology.