Can large trees that grow by the sea hasten erosion by the roots breaking up the rock and clay cliff?
Imagine a farm by the ocean. Much of it is bordered by a ten meter cliff to the sea. The cliff is eroding. Large trees grow on the cliff front. Pines and NZ Pohutukawa trees. The erosion has exposed part of the root system of the trees. Is that root system hastening erosion by breaking up the clay cliff, or preventing erosion by holding it together?