Abstract
AbstractBiogeochemical cycles of Ca, Mg, K, and Na were studied in a small forested watershed on relatively base‐rich terrain at the Sleepers River Research Watersheds (SRRW) in northeastern Vermont and on base‐poor terrain at the Hubbard Brook Experimental Forest (HBEF) in central New Hampshire. The two watersheds are comparable except that shallower soils at the SRRW are weathered from calcareous and quartz mica schist till, whereas the deeper soils at the HBEF are weathered from schist, gneiss, and quartz monzonite till. Inputs of the four cations in precipitation were similar except for Ca; Ca inputs were an order of magnitude greater at the SRRW. Total annual cation outputs were more strongly related to total stream flow and parent material geochemistry than to cation inputs in precipitation. Analysis of the variation in cation output in stream water with respect to flow suggests strong geochemical control of cation output at the SRRW. Similar analysis of data from the HBEF suggests a more complex pattern of cation output related to biological cycling of cations. Inputs of acidity may serve to flush the soil at the HBEF of cations.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
