Question

xplain why a plant may die if its roots remain water logged for a long time

Answer 1

Water logging means presence of excess water or moisture in the soil. The plants in water logged soil die because of the following reasons:

1. Water logging closes the pores in the soil and thus prevents its aeration which in turn stops oxygen supply to root cells> This can damage roots and cause death of plant.
2. It can lead to increase in the salt content of the soil because stagnant water leads to increase in concentration of salt in the soil due to evaporation. The causes acidity or alkalinity of the soil that can also cause death of plants.