uid=CDR,o=lter,dc=ecoinformatics,dc=org all public read knb-lter-cdr.958608.1 rp86e08 Richard Inouye Post-doctoral researcher, CCNHA, through 1988 Faculty, Idaho State University At Cedar Creek from the 1980s to the 2000s

Idaho State University Pocatello Idaho 83209

(208)-236-2933 (208)-282-4570 inourich@isu.edu Nancy Huntly Faculty, Idaho State University At Cedar Creek in the 1980s and 1990s

Idaho State University Pocatello Idaho 83209

(208)-282-2149 (208)-282-4570 huntnanc@isu.edu Cedar Creek LTER

Cedar Creek Natural History Area 100 Ecology Building 1987 Upper Buford Circle Saint Paul MN 55108 USA

612-625-5740 612-624-6777 dman@lter.umn.edu http://www.cedarcreek.umn.edu/ 1988 The purpose of this experiment is to look at the effect of NH4NO3 addition in an unfenced area. The experiment is located in field E. There are 4 different treatments C, F, H, and I as defined in <A HREF="http://www.cedarcreek.umn.edu/research/methods/nutradd/nutradd.html">fertilization details</A> in the "microplot" strategy. The plots are 4 by 4 meters and are laid out in an 8 by 8 grid with 1 meter aisles. For a list of treatments, see the treatment layouts in file <A HREF="http://www.cedarcreek.umn.edu/research/exper/e008/treatment.html">trmte08</A>. From 1989-1994 plots with fertilizer treatment 1 were treated as complete controls, receiving no nutrients at all. Cedar Creek Natural History Area Long Term Ecology Successional dynamics Primary Productivity Disturbance Patterns Nutrient Budgets Nutrient Cycles Climatic Variation Biodiversity Ecosystem functioning Nitrogen limitation Fire Frequency Plant Competition MOSSES MISCELLANEOUS LITTER AGROPYRON REPENS AGROSTIS SCABRA ARISTIDA BASIRAMEA AMBROSIA ARTEMISIIFOLIA ELATIO CREPIS TECTORUM ERIGERON CANADENSIS ERIGERON STRIGOSUS LEPIDIUM DENSIFLORUM POLYGONUM CONVOLVULUS POLYGONUM TENUE SETARIA LUTESCENS (GLAUCA) ERAGROSTIS SPECTABILIS CYPERUS SCHWEINITZII HEDEOMA HISPIDA SILENE ANTIRRHINA MISC. HERBS ARABIS DIVARICARPA MOLLUGO VERTICILLATA POA PRATENSIS ROSA ARKANSANA ACHILLEA MILLEFOLIUM(LANULOSA) BERTEROA INCANA FRAGARIA VIRGINIANA CYPERUS SP. CHRYSOPSIS VILLOSA PANICUM PERLONGUM LESPEDEZA CAPITATA OENOTHERA BIENNIS CENCHRUS LONGISPINUS FUNGI RUMEX ACETOSELLA CYPERUS SCWEINITZII PANICUM OLIGOSANTHES CYPERUS FILICULMIS OXYBAPHUS HIRSUTUS HIERACIUM LONGIPILUM SETARIA VIRIDIS

As a condition for access to data provided by researchers of the Cedar Creek LTER, I, the data user, agrees to abide by the following code of ethics. I agree to notify the Cedar Creek LTER scientists who gathered data if I would like to use those data in any publication. I acknowledge that these data were gathered by Cedar Creek scientists because they had already perceived the importance of these data for a variety of scientific and societal issues. I will provide them with formal recognition that, at their discretion, may include co-authorship or acknowledgements on publications. I realize that the researchers who gathered these data may be using them for scientific analyses, papers or publications that are currently planned or in preparation, and that such activities have precedence over any that I might wish to prepare. In this case, my preparation of any work may be delayed, at the option of the Cedar Creek researchers involved, until their work is completed. Because it may be possible to misinterpret a data set if it is taken out of context, I will seek the assistance and opinion of those Cedar Creek researchers involved in the design of a study and the collection of the data as I analyze the data. Moreover, I realize that this computer data set is not complete, and it may contain errors. The complete data set includes extensive written documentation, which should be referenced to reduce the chance of errors in data and errors of interpretation.

http://sbc.lternet.edu The Cedar Creek Natural History Area is located in Anoka and Isanti counties, approximately 30 miles north of Saint Paul, MN. CCNHA lies at the boundary between prairie and forest. It is a mosaic of uplands dominated by oak savanna, prairie, hardwood forest, pine forests,and abandoned agricultural fields and of lowlands comprised of ash and cedar swamps, acid bogs, marshes, and sedge meadows. Large tracts of the pre-agricultural ecosystems of the region are preserved within its boundaries, as is a successional chronosequence of more than 80 old fields of known history. -93.22445 -93.16289 45.44138 45.384865 1983 1994 Stephanie Lyon Cedar Creek LTER information manager

Ecology Evolution and Behaviour Dept. University Of Minnesota 100 Ecology Building 1987 Upper Buford Circle Saint Paul MN 55108 USA

612-625-5740 612-624-6777 dman@lter.umn.edu Dr. David Tilman Ecology Evolution and Behaviour Dept. University Of Minnesota Head Principal Investigator

Ecology Evolution and Behaviour Dept. University Of Minnesota 100 Ecology Building 1987 Upper Buford Circle Saint Paul MN 55108 USA

612-625-5740 612-624-6777 tilman@umn.edu

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Fertilization: Fertilizer is mixed and spread by hand twice a year, once in early May and once in late June. Each plot gets the fertilizer mixture specified by its fertilizer treatment code. For a list of fertilizer treatments for each plot, see file trmte08 . <A

Field Identification Experiment Number Plot Number Nitrogen Treatment Ammonium Nitrate (34-0-0) addition (g/m2/yr) E 8 41 6 28 E 8 42 3 6 E 8 43 8 80 E 8 44 3 6 E 8 45 1 0 E 8 46 1 0 E 8 47 1 0 E 8 60 8 80 E 8 61 1 0 E 8 62 8 80 E 8 63 3 6 E 8 64 6 28 Color codes of rebars used to mark treatments in E008: Experiment Color Treatment E008 White A = 1 E008 Yellow C = 3 E008 Red F = 6 E008 Green H = 8 <A

Sampling map for e008 is not currently available. Clip strips are 10cm wide and 3m long. 1983: Clipped at ? 1985: Clipped 50cm from right side 1986: Clipped 75cm from right side 1994: get info from Richard Inouye Sampling Problems in E008: 1983: ? 1985: none 1986: none Other Notes: E008 was clipped in 1983, but there is no documentation as to where in the plots it was clipped.

rp86e08 Raw data by plant species rp86e08 13 0 \n\r column | " dist_knb-lter-cdr.958608.1 geoReferenceID 1986 field field Field number/letter Field number/letter expt expt Experiment number Experiment number plot plot Plot number Plot number sdate sdate Sampling date YYMMDD taxon taxon Species Taxon code Species Taxon code species species Species Name Species Name medht medht Median plant height centimeter real maxht maxht Maximum plant height centimeter real biomass2 biomass2 Species Biomass g/sample real