Long-Term Ecological Research (LTER)/CDR016: Old Field Allocation Survey (OFALLOC) at Cedar Creek Natural History Area

These data can be combined with the old field survey results (CDR010) to estimate successional trends in allocation. C) Root cores will be taken from microplots in fields A, B, C, and D, all treatments. This will be an estimate of root biomass to be combined with the aboveground samples (CDR001) to assess root/shoot trends in response to manipulation of soil N in fields of different age.

Proprietary limits: Investigators have priority over data for five years, but are interested in collaboration for novel comparisons before then. The Cedar Creek Natural History Area (CCNHA) is a 2200 hectare experimental ecological reserve operated by the University of Minnesota in cooperation with the Minnesota Academy of Sciences. CCNHA is located in Anoka and Isanti Counties north of Minneapolis/St.

Paul. The site was established in 1940, was designated a National Natural Landmark by the National Park Service in 1975. In 1977 it was included as an Experimental Ecology Reserve in a proposed network, and in 1982 it was one of 11 sites in the U.S. selected by the National Science Foundation for funding of LTER.

Information about LTER is also available at 'lternet.edu/'