To Study Plant Population Density by Quadrat Method – MeitY OLabs


To Study Plant Population Density by Quadrat
Method Materials Requires: Nails, a hammer and thread. Procedure In the selected site of study, hammer the
nails firmly without damaging the vegetation. Fix four nails to make a square.
Tie each end of the nails using a thread, to make a 1 m X 1 m quadrat.
Similarly make nine more quadrats randomly in the site of study.
Count the number of individuals of a species ‘A’ present in the first quadrat.
Record the data in the table. Similarly count the number of individuals
of the species ‘A’ in other quadrats respectively and record the data in the table.
Count the number of individuals of a species ‘B’ present in the first quadrat.
Record the data in the table. Similarly count the number of individuals
of the species ‘B’ in other quadrats and record the data in the table.
Repeat the same procedure for species C and record the data in the table.
We can calculate the density of plant population by this equation:
Density=Total number of individuals of the species in all the sampling unit (S) / Total
number of sampling units studied (Q) The density value thus obtained is then expressed
as number of individuals per unit area.