Estimation of population

Transect

This records the distribution of plants along a line and is useful for showing changes in the vegetation of places like hillside, a pond etc

Procedure.

Get a long measuring tape or length of string marked at convenient intervals using a marker pen. This is laid along the selected line and every plant which touches it is recorded. Plants that do not actually touch it are ignored. The string is attached to 2m rule held apart.

Comments

The state of Puerto Rico

Physical classification of water

Hygroscopic water This is the water present in an air dry soil held tightly by soil solids at a suction pressure greater than 3.1 bar. This type of water cannot be removed by evapouration and roots of higher plants. Only microbial activities have been found to take place here.

SCIENCE is life

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