Undergraduate Prerequisites: BI 107 or ES/EE 105 or ES/EE 107, and CH 101/102; or consent of instru ctor - The patterns and processes controlling carbon and nutrient cycling in terrestrial ecosystems. Links between local and global scales are emphasized. Topics include net primary production, nutrient use efficiency, and biogeochemical transformation. Meets with EE 443. Also offered as BI 643.