Dear aspirant,

To study the population density of different plant species you need following materials:

• Hammer
• Nail
• Thread

The procedure is as follows:

• Hammer a nail in the farming area without harming the vegetation.
• Fix four nails like this in form of square.
• Tie thread to the nails such that it forms a square of 1m*1m.
• Make nine more similar quadrants at the site of study.
• Now count the number of individuals in specie A in the quadrants and note it down.
• In this way count the number of individuals in other species and note it down.
• Then calculate the density using the formula,

Density= Total number of individuals in the specie in all sampling units / Total number of sampling units.