Limestone pavements were formed ... For example, some areas of pavement where there had been large increases in tree cover had lost more than 20 plant species in the years between the two surveys.

Those pavements most affected by tree cover are found in Lancashire ... understanding on what the current picture is for limestone pavement vegetation. However, we still need more research to ...

Erosion through weathering has created the surface features of scars, scree and limestone pavement. Limestone is soluble in acidic rainwater. It is a permeable rock, meaning water can pass through it.