In Imagine Earth there are 8 types of ground that can give your buildings a much higher productivity (or in some cases a much lower). This short overview will help you to decide how to place your buildings.
is the default ground type for your land buildings.
will increase the productivity of power plants that rely on energy sources. Coal and gas power plants are a good example.
ground makes the crop yield of your farms much larger.
on the contrary, isn’t a good place for a farm. Nevertheless, a solar park will have it’s highest energy output when built into a desert.
fields are know to by windy spots and will increase the production of wind farm.
fields will allow you to place some different kinds of buildings.
are the right place to build an oil rig.
will let your fishery produce a lot of food.