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Long-Term Ecological Research (LTER)/CDR018: Plant Competition Under Different Nitrogen Levels at Cedar Creek Natural History Area
Entry ID: LTER_CDR018


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Summary
Abstract: LTER - Long-Term Ecological Research Program/Cedar Creek Natural
History Area (CDR)

LTER/CDR018 [Summary adapted from the LTER Core Data Set Catalog]:

This is the new garden plot experiment located next to the CDR014
gardens. This garden contains monocultures of major grass species
from across the grassland biome of North America, and also three
legume species (CDR020). The design and purpose are similar to
CDR014, except the plots are larger. The basic experimental design
consists of growing plants in monoculture and in various competitive
combinations on each of 14 different soil mixtures. Each soil mixture
has 26 subplots. Each subplot, which is 1.2 m x 1.2 m, is a unique
treatment. Thus, there are no replicates of a treatment within a soil
mixture. Rather, the experiment is a regression experiment, with the
regression variable being the experimentally imposed level of total
soil nitrogen. At the time the seeds were planted, each plot was
fertilized with a mixture of P, K, Ca, Mg, and trace metals. Plots 1
through 23 were planted with different combinations of the following
species: Schizachyrium scoparium, Andropogon gerardi, Bouteloua
gracilis, Panicum virgatum, Agropyron smithii, and Buchloe
dactyloides. A belowground gopher fence and an aboveground
rodent/deer fence was built around the area.


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
'http://lternet.edu/'

Related URL
Link: GET DATA
Description: Access to Cedar Creek LTER datasets


Geographic Coverage
 N: 45.0 S: 45.0  E: -93.0  W: -93.0

Temporal Coverage
Start Date: 1988-01-01


Location Keywords
CONTINENT > NORTH AMERICA
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MINNESOTA


Science Keywords
BIOSPHERE >TERRESTRIAL ECOSYSTEMS >FORESTS    [Definition]
BIOSPHERE >VEGETATION >FOREST COMPOSITION/VEGETATION STRUCTURE    [Definition]
BIOSPHERE >VEGETATION >HERBIVORY    [Definition]
BIOSPHERE >VEGETATION >NITROGEN    [Definition]
BIOSPHERE >VEGETATION >NUTRIENTS    [Definition]
LAND SURFACE >SOILS >ORGANIC MATTER    [Definition]
AGRICULTURE >SOILS >HEAVY METALS    [Definition]
LAND SURFACE >SOILS >HEAVY METALS    [Definition]
BIOSPHERE >TERRESTRIAL ECOSYSTEMS >WETLANDS >MARSHES    [Definition]
BIOSPHERE >AQUATIC ECOSYSTEMS >WETLANDS
BIOSPHERE >AQUATIC ECOSYSTEMS >WETLANDS >MARSHES
BIOSPHERE >ECOLOGICAL DYNAMICS >SPECIES/POPULATION INTERACTIONS >SPECIES COMPETITION    [Definition]
BIOSPHERE >ECOLOGICAL DYNAMICS >SPECIES/POPULATION INTERACTIONS >POPULATION DYNAMICS    [Definition]
BIOSPHERE >ECOLOGICAL DYNAMICS >COMMUNITY DYNAMICS >PLANT SUCCESSION    [Definition]
BIOSPHERE >ECOLOGICAL DYNAMICS >COMMUNITY DYNAMICS >GRAZING DYNAMICS / PLANT ECOLOGY    [Definition]
BIOSPHERE >ECOLOGICAL DYNAMICS >ECOSYSTEM FUNCTIONS >BIOGEOCHEMICAL CYCLES    [Definition]
BIOSPHERE >ECOLOGICAL DYNAMICS >ECOSYSTEM FUNCTIONS >NUTRIENT CYCLING    [Definition]
BIOSPHERE >ECOLOGICAL DYNAMICS >ECOSYSTEM FUNCTIONS >BIOMASS DYNAMICS    [Definition]
BIOSPHERE >ECOLOGICAL DYNAMICS >ECOSYSTEM FUNCTIONS >PRIMARY PRODUCTION    [Definition]
HUMAN DIMENSIONS >ECONOMIC RESOURCES >AGRICULTURE PRODUCTION >MONOCULTURE    [Definition]


ISO Topic Category
FARMING
BIOTA
GEOSCIENTIFIC INFORMATION
INLAND WATERS


Project
LTER >Long-Term Ecological Research    [Information]


Keywords
CALCIUM
CCNHA
CDR
CDR018
CEDAR CREEK
ECOSYSTEMS
FERTILIZATION
LTER
MAGNESIUM
NITROGEN
NSF
PHOSPHOROUS
POTASSIUM
SOIL NITROGEN
TRACE METALS


Originating Center
UMN


Data Center
Cedar Creek Natural History Area, Long-Term Ecological Research Network Office    [Information]
Data Center URL: http://www.lter.umn.edu/
Dataset ID: CDR018

Data Center Personnel
Name: STEVE BAUER
Phone: 612-625-5738
Phone: 763-434-5131
Fax: 612-624-6777
Fax: 763-434-7361
Email: bauer051 at umn.edu
Contact Address:
University of Minnesota
100 Ecology Building
1987 Upper Buford Circle
City: St. Paul
Province or State: MN
Postal Code: 55108
Country: USA


Personnel
GENE R. MAJOR
Role: DIF AUTHOR
Email: gsfc-gcmduso at mail.nasa.gov


DAVID G. TILMAN
Role: INVESTIGATOR
Role: TECHNICAL CONTACT
Email: dtilman at lternet.edu
Email: tilman at cdr.lter.umn.edu
Contact Address:
University of Minnesota
100 Ecology Bldg, 1987 Upper Buford Circle
Department of Ecology, Evolution and Behavior
City: ST PAUL
Province or State: MN
Postal Code: 55108-6097
Country: USA


Publications/References
Tilman, D. 1986. "Nitrogen-limited growth in plants from different
successional stages". Ecology, Vol. 67, pp. 555-563.

Tilman, D.; M.L. Cowan. 1989. "Growth of old field herbs on a nitrogen
gradient". Functional Ecology, Vol. 3, pp. 425-438.

See also: http://www.lter.umn.edu/

Creation and Review Dates
Last DIF Revision Date: 2012-11-29


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