风土人情 and 风土民俗 express the same meaning. 风土人情 is more often used. In my opinion, there is a slight difference. 风土人情 emphasizes more on the current situation of the people and conditions; while 风土民俗 emphasized more on the tradition and heritage.

风土人情的意思一般是说这个地方的人是什么样！ 风土民俗的意思是说这个地方的生活是什么样！

字面意义上基本一致，但是风土人情更常用。

我认为没区别