According to the pilot, he was flying over a small airstrip near a campground when he experienced a severe gust of wind that made the airplane turn abruptly to the right. The pilot felt that the airplane was out of control and decided to make a precautionary landing in a plowed field. During the precautionary landing, the airplane sustained substantial damage to the nose landing gear, wings, and fuselage. The pilot reported no preimpact mechanical malfunctions or failures with the airplane that would have precluded normal operation.