Details and Metadata

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Methods

The methods followed in the creation of the dataset, including description of field, laboratory and processing steps, and quality control procedures

Current Methods

  • Sample collection and analysis

    Samples were collected biweekly. pH measurements are then taken. Samples were transported to a lab for NH4+ and DOC analyses. Other stream chemistry measurements include Cl, Mg, Na, Al, Ca, K, H, NO3, SO4, Fe, Mn, and ANC. Soil water measurements included all of the above besides ANC.

  • Soil nitrification data

    Soil nitrification data collection used the buried bag method plus 2' PVC tubes with 3 in each forest type. Three lysimeters were installed in organic and B horizons in each forest type. Soils and vegetation were characterized at the intensive soil chemistry sites.



  • Stream sampling cut back to 4 sites every three weeks.

Dataset Fields

Detailed documentation of the fields comprising the dataset, including the type of measurement, units where applicable, and any controlled vocabularies or code lists present in the data


Field Name Caption Description Additional Information
IDID

Unique record ID

Measurement type: Ordinal
siteSite

Survey location

Measurement type: Nominal
dateDate

Date

Measurement type: DateTime
Date/Time Format: YYYY-MM-DDThh:mm:ss
ANCm_meq_LAcid Neutralizing Capacity

ANC is used to determine the susceptibility of sites to acidification

Measurement type: Ratio
Unit: unavailable
Precision: 0.01
SO42neg_negS_mg_LSO4-S

The fraction of the sulfate sample attributable to sulfur alone

Measurement type: Ratio
Unit: unavailable
Precision: 0.01
NO3neg_negN_mg_LNO3-N

Nitrate concentration

Measurement type: Ratio
Unit: unavailable
Precision: 0.01
Clneg_mg_LChloride Ion Concentration

Chloride ion concentration

Measurement type: Ratio
Unit: unavailable
Precision: 0.01
Ca2pos_mg_LCalcium Ion Concentration

Calcium ion concentration

Measurement type: Ratio
Unit: unavailable
Precision: 0.01
Mg2pos_mg_LMagnesium Ion Concentration

Magnesium ion concentration

Measurement type: Ratio
Unit: unavailable
Precision: 0.01
Napos_mg_LSodium Ion Concentration

Sodium ion concentration

Measurement type: Ratio
Unit: unavailable
Precision: 0.01
Kpos_mg_LPotassium Ion Concentration

Potassium ion concentration

Measurement type: Ratio
Unit: unavailable
Precision: 0.01
Hpos_mg_LHydrogen Ion Concentration

Hydrogen ion concentration

Measurement type: Ratio
Unit: unavailable
Precision: 0.001
Ali_mg_LInorganic Aluminum

Inorganic aluminum

Measurement type: Ratio
Unit: unavailable
Precision: 0.01
Alo_mg_LOrganic Aluminum

Organic aluminum

Measurement type: Ratio
Unit: unavailable
Precision: 0.01
NH4pos_mg_LAmmonium Concentration

Ammonium concentration

Measurement type: Ratio
Unit: unavailable
Precision: 0.001
Fe_mg_LIron Concentration

Iron concentration

Measurement type: Ratio
Unit: unavailable
Precision: 0.01
Mn_mg_LManganese Concentration

Manganese concentration

Measurement type: Ratio
Unit: unavailable
Precision: 0.001
TOC_mg_LTotal Organic Carbon

Total organic carbon

Measurement type: Ratio
Unit: unavailable
Precision: 0.1
SiO2_mg_LSilicon Dioxide Concentration

Silicon Dioxide concentration: A common soil component

Measurement type: Ratio
Unit: unavailable
Precision: 0.1
Cond_mS_cmConductivity

Measure of streams ability to conduct electricity

Measurement type: Ratio
Unit: unavailable
Precision: 0.1
Temp_CTemperature

Temperature

Measurement type: Interval
Unit: unavailable
Precision: 0.1

Sampling Equipment

Equipment and software used to collect data, including how that equipment was used.

Current Equipment

  • Portable pH meter, streamwater grab sampler

    Portable pH meter, streamwater grab sampler

Past Sampling Equipment (No longer in use)

  • Stream water grab sampler
    Started: 1994-05-24
    Ended: 1995-08-30

    Stream water grab sampler

Site Characteristics

The spatial extent of the dataset site coverage, and descriptions of the spatial extent and context for the data collection

  • Site Description

    Stream sampling initially at 9 sites: 3 on Lye Brook, 2 on tributaries to Lye Brook, 1 on stream on west slopes, 1 on tributary to Bourne Brook, 2 in wetlands near Lye Brook Meadows. Soil nitrification sites in paper birch/red maple stand, sugar maple/spruce/birch stand and in spruce adjacent to a bog. These sites located left center of Lye Brook Wilderness Area (north of Lye Brook Trail and west of Bourn Pond Shelter).