The pilot reported that he planned on landing his single-engine, tail wheel equipped, airplane in an open field in front of a friend's mountain cabin. The pilot made his first approach to the landing area and "dragged" his wheels across the landing area to test the roughness of the terrain before landing. The pilot then initiated a go-around and planned on landing during the next pass. Immediately upon initiating the go-around the pilot reported that he encountered severe turbulence over the tree populated terrain outside the periphery of his landing area. The turbulence forced the airplane down through the trees and into the ground. The pilot egressed the cockpit and the airplane was consumed by a post impact fire. The pilot stated that the airplane and engine had no mechanical failures or malfunctions during the flight.