How many earthworms can there be in Tongliao, Inner Mongolia?

Earthworms can be found in July, and there are many of them. Because earthworms generally appear in summer and rarely in winter, because the weather in winter is cold and not suitable for earthworm activities. Earthworms usually live in the soil at this time, and more earthworms will come out in summer, probably in July, so the number is very large.