In: Biology
a) Shading :
The trees cut off or seize the amount of light that reaches the ground and provides ample shading to the building and associted structures.
b)Dealing with environmental stresses:
Trees can be used to reduce the effects of heavy rainfall such as rising of water levels.The roots absorb a considerable amount of this water and reduces the probability of flooding.
Also a reduction in pollution(air and sound) can be attained due to the air purifying mechanism of trees.
c)Avenue pattern:
The trees are used as avenue which increases the aesthetic sense and also houses birds and small creatures and embellishes the structures.
d) They also act as wind breakers.