Traditional settlements are the result of the interaction between human activities and the natural environment in the historical period.

Traditional settlements are the result of the interaction between human activities and the natural environment in the historical period. On the one hand, the settlement culture has high academic research value, on the other hand, it can be used as special tourism resources. Traditional settlements are increasingly being destroyed and even dying out, so countries around the world are trying to protect their national characteristics.

Therefore, the answer is: human activities; natural environment; national characteristics.

The answer is: human activities; natural environment; national characteristics.