University of Minnesota
University of Minnesota
College of Biological Sciences
http://www.cbs.umn.edu/

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Effects of Deer and Pocket Gophers on Vegetation and Soils - Experiment 064


Soil nitrate and ammonium

Years Available: 1991

Principle Investigators

Inouye, Richard
Huntly, Nancy

Abstract

The goal of this experiment is to determine the effects of pocket gophers and deer on succesesional changes and the development of heterogeneity in soils and vegetation in an old-field. This is a long-term experiment and will be sampled through the year 2000. Major herbivores are excluded from fifteen 12m x 12m plots in a newly abandoned old field. Main treatments include gopher removals, all large vertebrate removals, and controls. Smaller (3m x 12m) grasshopper removals are nested within main treatments. Gopher disturbance will be quantified throughout the summer season. Soils ( including N mineralization) and vegetation will be sampled regularly on 100-point grids within each plot. For a list of treatments, see the treatment layouts in file Link==>e064/treatment trmte64.


View All Experiment and Dataset Methods

Environmental Data Initiative data package

EDI Package ID DOI
knb-lter-cdr.198.8
doi:10.6073/pasta/9d25ae8a9980e43865117963f17b36f1

ATTRIBUTES

FieldNameDefinitionUnitCode
1Field letterField letter
2Experiment numberExperiment number
3Plot numberPlot number
4Sample numberSample number
5Initial/FinalInitial/Final
6Sampling dateSampling date
7Tin letterTin letter
8Tin numberTin number
9NO3 solution (ppm)NO3 solution (ppm)dimensionless
10NH4 solution (ppm)NH4 solution (ppm)dimensionless
11Moisture (g H2O / 100g Dry Soil)Moisture (g H2O / 100g Dry Soil)gramsPer100Grams
12Dry soil weight (g)Dry soil weight (g)gram
13NO3 in soil (mg/kg)NO3 in soil (mg/kg)milligramsPerKilogram
14NH4 in soil (mg/kg)NH4 in soil (mg/kg)milligramsPerKilogram
 

SAMPLE DATASET

Field letterExperiment numberPlot numberSample numberInitial/FinalSampling dateTin letterTin numberNO3 solution (ppm)NH4 solution (ppm)Moisture (g H2O / 100g Dry Soil)Dry soil weight (g)NO3 in soil (mg/kg)NH4 in soil (mg/kg)
E6411I910612B10.05110.10965.7416.290.15690.3363
E6412I910612B20.04030.15415.7825.230.07980.3054
E6413I910612B30.02720.13346.1122.830.05950.2921
E6416I910612B40.02980.18586.1720.060.07420.4631
E6415I910612B50.06550.19055.7318.840.1740.5056
E6414I910612B60.04470.1716.3320.510.10910.4168
E6417I910612B70.02290.30015.8124.310.04710.6173
E6418I910612B80.03430.30084.5920.420.0840.7364
E6419I910612B90.05490.29835.7422.520.12190.6624
E64112I910612B100.02740.35935.4323.120.05920.7769
E64111I910612B110.03680.17275.5323.350.07870.3698
E64110I910612B120.04130.25515.9425.750.08020.4953
              

Download dataset nohe064
Effects of Deer and Pocket Gophers on Vegetation and Soils : Soil nitrate and ammonium

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