Is being an agricultural engineer part of environmental engineering?

Is being an agricultural engineer part of environmental engineering or are they 2 differed fields? I've grown up on a small farm my whole life and am taking a year off to travel and work on small farms in New Zealand, I am accepted into a school for Environmental Studies / Pre-Engineering but I want to do more agricultural work in my future, should I change my degree? If so to what?
posted by Genevieve, Homer Alaska on March 25, 2014