Why is this piece is called "Landscape"?
Stuart Davis often made sketches of locations that he visited in New York or Paris or port towns in New England and later used them as sources for paintings.
In the process, he would simplify the forms, making them more geometrical and taking away shading, perspective, and other traditional means of showing space on a flat surface... "abstracting" the image.
I don't know the exact source for this one, but if you look closely... do you see forms and lines that could suggest ladders or the riggings of ships?