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

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Nitrogen limitation in decomposition - Experiment 211


Substrate mass, nitrogen, extracellular enzyme, and microbial biomass and stoichiometry dynamics

Years Available: 2005 - 2008

Principle Investigators

Hobbie, Sarah
Hobbie, Sarah
Ogdahl, Megan

Nitrogen limitation in decomposition - Experiment 211


Substrate mass, nitrogen, extracellular enzyme, and microbial biomass and stoichiometry dynamics

Years Available: 2005 - 2008

Principle Investigators

View All Experiment and Dataset Methods

ATTRIBUTES

FieldNameDefinitionUnitCode
1Sitesite within Cedar Creek where experiment was conducted
2TreatmentTreatmentX = Control. no nutrient addition, IN = inorganic N addition. 10 g N m-2 y-1 as NH4NO3, ON = organic N addition. 10 g N m-2 y-1 as 3.33 g N m-2 y-1 each of alanine glycine and glutamate, C = carbon addition. 28.5 g C m-2 y-1 as D-glucose the same rates of C addition as in the ON treatment, INC= inorganic N carbon addition . 10 g N m-2 y-1 as NH4NO3 28.5 g C m-2 y-1 as D-glucose, LTN= long-term N addition. 10 g N m-2 y-1 as NH4NO3, NON= non-N nutrient addition. 10 g P m-2 y-1 and 12.6 g K m-2 y-1 as KH2PO4 10 g Ca m-2 y-1 as CaCl2 5 g Mg m-2 y-1 and 6.6 g S m-2 y-1 as MgSO4 0.5 g Fe m-2 y-1 as FeNaEDTA
3Repreplicate
4Substratesubstrate (litter type) decomposed
5Harvestharvest time (number)
6Harvest Dateharvest time (date)
7Daysharvest time (days)dimensionless
8Yearsharvest time (years)dimensionless
9IDsample identification number
10InitialMass(g)initial substrate dry mass in gramsgram
11FinalMass(g)final substrate dry mass in gramsgram
12Proportion Initialfinal substrate mass expressed as a proportion of the initial substrate dry massgram
13Initial %Ninitial substrate nitrogen concentration (g N/100 g substrate)dimensionless
14Final %Nfinal substrate nitrogen concentration after harvest (g N/100 g substrate)dimensionless
15Final %Cfinal substrate carbon concentration after harvest (g C/100 g substrate)dimensionless
16Initial N Content (g)initial substrate nitrogen content (grams of nitrogen)gram
17Final N Content (g)final substrate nitrogen content (grams of nitrogen)gram
18Prop Initial Nfinal substrate nitrogen content expressed as a proportion of the initial substrate nitrogen contentgram
19NImmob(gN/g init litter)the difference between the final and initial nitrogen content, normalized per gram of initial littergram
20Chl-labile C (fum-NF) mgC/g litterchloroform labile carbon, the difference between fumigated and nonfumigated sampes (mg C/g litter)milligram
21Chl-labile N (fum-NF) mgN/g litterchloroform labile nitrogen, the difference between fumigated and nonfumigated sampes (mg N/g litter)milligram
22Chl-labile CtoNthe ratio of chloroform-labile carbon to chloroform-labile nitrogendimensionless
23PHOS(umol/g/h)substrate acid phosphatase activity (micromol/gram substrate/hour)micromolePerGramPerHour
24BGLU(umol/g/h)substrate beta-glucosidase activity (micromol/gram substrate/ hour)micromolesPerGramPerHour
25NAG(umol/g/h)substrate N-acetyl glucosaminidase activity (micromol/gram substrate/hour)micromolesPerGramPerHour
26CELLBIO(umol/g/h)substrate cellobiohydrolase activity (micromol/gram substrate/hour)micromolesPerGramPerHour
27POX(umol/g/h)substrate phenol oxidase activity (micromol/gram substrate/hour)micromolesPerGramPerHour
28PER(umol/g/h)substrate peroxidase activity (micromol/gram substrate/hour)micromolesPerGramPerHour
 

SAMPLE DATASET

SiteTreatmentRepSubstrateHarvestHarvest DateDaysYearsIDInitialMass(g)FinalMass(g)Proportion InitialInitial %NFinal %NFinal %CInitial N Content (g)Final N Content (g)Prop Initial NNImmob(gN/g init litter)Chl-labile C (fum-NF) mgC/g litterChl-labile N (fum-NF) mgN/g litterChl-labile CtoNPHOS(umol/g/h)BGLU(umol/g/h)NAG(umol/g/h)CELLBIO(umol/g/h)POX(umol/g/h)PER(umol/g/h)
Oak NXR13BH15/9/20051600.44110.0017.3780457290.73773080.6270.71247.5980.062706270.0525316860.837742152-0.0010173579.867076250.4535525821.75508789.612.651.350.2300
Oak NXR19BH15/9/20051600.44210.0039.3334789130.9330679710.8230.9147.8440.082324690.0849346581.0317033460.0002609191.39271180.2841264.901740048.353.91.410.7800
Oak NXR13GH15/9/20051600.44310.0047.9238728160.7920704532.0082.15846.5370.200880320.1709971750.851239063-0.0029871200.2324524.111.010000
Oak NXR19GH15/9/20051600.4449.9949.0339572180.9039380852.2072.62146.7280.220567580.2367800191.0735032710.00162221711.85154960.6539669418.12255154.582.570.350.4600
Oak NINR13BH15/9/20051600.44510.0037.3405916310.7338390110.6270.86148.0020.062718810.0632024941.0077119444.84E-057.118621120.4308222616.523336310.576.542.581.500
Oak NINR19BH15/9/20051600.44610.0057.0290229250.7025510170.8230.88347.8130.082341150.0620662720.753769803-0.0020264756.282107620.4621505813.593205110.277.472.472.2600
Oak NINR13GH15/9/20051600.44710.0268.0271364820.8006320052.0082.45646.5820.201322080.1971464720.979259066-0.0004164783.074077780.2435298112.62300436.242.590.440.6500
Oak NINR19GH15/9/20051600.44810.0019.2848556550.9283927262.2072.78347.0310.220722070.2583975331.170691870.003767171.126198840.415328872.711583347.045.411.371.7700
Oak NONR13BH15/9/20051600.44910.0098.0880272570.8080754580.6270.85448.1740.062756430.0690717531.1006322820.0006309647.510194580.5200612314.440981412.076.972.921.9900
Oak NONR19BH15/9/20051600.441010.0068.8663316460.8861015040.8231.03347.5320.082349380.0915892061.1122027380.0009234298.990206560.7316394412.287755515.577.182.833.2100
Oak NONR13GH15/9/20051600.441110.0097.7129083750.77059732.0081.97746.5260.200980720.1524841990.758700628-0.00484529114.40783540.2409455559.79705974.441.160.140.1500
Oak NONR19GH15/9/20051600.441210.0019.1908695850.9189950592.2072.64847.1910.220722070.2433742271.1026275110.00226498910.32504980.5676831418.188050965.481.091.8100
                            

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Nitrogen limitation in decomposition: Substrate mass, nitrogen, extracellular enzyme, and microbial biomass and stoichiometry dynamics

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