What seems to be the effects on Buddhism because of Asoka's edicts (laws) ?

there are many effects

Explanation:

As a Buddhist emperor, Ashoka believed that Buddhism is beneficial for all human beings, as well as animals and plants, so he built a number of stupas. He also well spread Buddhism to neighboring kingdoms.

some changes include:

1. being gentle with slaves and servants

2. respecting elders

3. treating all creatures with compassion

4. giving gifts to brahmins and monks