I was thinking about how given a whole host of sci-fi scenarios, you end up with landmass but no form of geological activity or plate tectonics, and so ensuring you end up with a lot of scenarios where you have constant erosion of existing landmasses and no existing or present method of replenishment, with the sole exception, in this case, being ecology. So the question, in short. Is this.
What would an ecological system look like as an entire whole whole as well as the individual organism that make up this system specifically engineered or ending up through evolution, as to prevent, be resistant to, or somehow reverse the erosion of existing landmasses? Genetic engineering is allowed, the environment doesn't have to be based on earth biology or exist in an earth-like environment?