Vermont Long-Term Soil Monitoring Program: Mercury 2002 to 2022
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► Metadata Provider
- Forest Ecosystem Monitoring Cooperative
- Address:
705 Spear Street
South Burlington, Vermont 05403
United States of America
Phone: (802) 391-4135
Email: femc@uvm.edu
Website: www.uvm.edu/femc
► Abstract
Long-term monitoring of forest soils is necessary to understand the effects of continued environmental change, including climate change, atmospheric deposition of metals, and recovery from acidic precipitation. A monitoring program was initiated in 2002 at five protected forest sites in Vermont, three in Mt. Mansfield State Forest and two in the Lye Brook Wilderness Area. Every 5 years at each site, ten soil pits are dug and sampled from subplots in a 50 × 50-m plot.
► People
- Joshua Halman: Content Provider
- Carl Waite: Content Provider
- Sandra Wilmot: Content Provider
- Nancy Burt: Content Provider
- Jamie Shanley: Content Provider
- Deane Wang: Content Provider
- Sean Lawson: Content Provider
- Thomas Villars: Principal Investigator
- Scott Bailey: Principal Investigator
- Donald Ross: Principal Investigator
- James Duncan: Content Provider
- Jennifer Wright: Content Provider
- Angelica Quintana: Content Provider
► Organizations
- United States Geological Survey (USGS) : partner
- United States Department of Agriculture (USDA) Natural Resources Conservation Service: partner
- Forest Ecosystem Monitoring Cooperative (FEMC) : partner
- University of Vermont College of Agriculture and Life Sciences: partner
- United States Department of Agriculture (USDA), Forest Service Green Mountain and Finger Lakes National Forests: partner
► Geographic Coverage
- Coordinates
- -73.059551667, 43.05681667
- -72.79543333, 43.05681667
- -72.79543333, 44.53525
- -73.059551667, 44.53525
- -73.059551667, 43.05681667
► Data Table
- Title: Mercury 2002 to 2022
- Start Date: 2002-01-01
- Description: Total mercury in the uppermost Oa or A horizon from each of the sampled subplots from 2002 through 2022. Additional data include total organic carbon, total nitrogen, horizon thickness, calculated bulk density, and estimated mercury pool in the sampled horizon.
- Purpose:
- Condensed Title: 20240510113931_Mercury and carbon data 2002-2022.xlsx
- Object Name: VMC.161.3977
- Data Type: mySQL
- Citation: Vermont Long-Term Soil Monitoring Program: Mercury 2002 to 2022, 2002-01-01
- Online Distribution: https://vmc.w3.uvm.edu/vmcdevel/data/archive/project/long-term-soil-monitoring/dataset/mercury-2002-to-2022
► Attribute List
- Attribute Name: Year
- Label: Sampling year
- Storage Type: int
- Measurment Type: nominal
- String Format: D-M-YY
- Number Type: -1
- Attribute Name: Site
- Label: Site abbreviation
- Description: LR: Lye Road LT: Lye Trail MR: Mansfield Ranch MF: Mansfield Forehead MU: Mansfield Underhill
- Storage Type: text
- Measurment Type: nominal
- String Format: D-M-YY
- Number Type: -1
- Attribute Name: Plot
- Label: subplot sampled
- Description: Randomly chose 5x5 m subplot from a 50x50 m grid. Beginning in 2017, a specific 1/4 quadrant of each plot was sampled (data not provided here)
- Storage Type: int
- Measurment Type: nominal
- String Format: D-M-YY
- Number Type: -1
- Attribute Name: Horz_
- Label: Horizon designation
- Description: Based on soil taxonomy current at the time, an A horizon had less than 200 g/kg carbon and an Oa horizon above that
- Storage Type: text
- Measurment Type: nominal
- String Format: D-M-YY
- Number Type: -1
- Attribute Name: Site-code
- Label: Site code
- Description: 1 through 5 is LR, LT, MR, MF, MU
- Storage Type: int
- Measurment Type: nominal
- String Format: D-M-YY
- Number Type: -1
- Attribute Name: Yr-code
- Label: Year code
- Description: 1 through 5 is 2002, 2007, 2012, 2017, 2022
- Storage Type: int
- Measurment Type: nominal
- String Format: D-M-YY
- Number Type: -1
- Attribute Name: rep
- Label: replicate number
- Description: 1 through 10 assigned in order of plot number (usually)
- Storage Type: int
- Measurment Type: nominal
- String Format: D-M-YY
- Number Type: -1
- Attribute Name: _Total_Hg_ug/kg
- Label: Total mercury
- Description: Total mercury in the soil sample in ug per kg
- Storage Type: decimal
- Measurment Type: nominal
- String Format: D-M-YY
- Unit: ug/kg
- Number Type: -1
- Attribute Name: Organic_carbon_g/kg
- Label: Total organic carbon
- Description: Total organic carbon in the soil sample in g per kg
- Storage Type: decimal
- Measurment Type: nominal
- String Format: D-M-YY
- Unit: g/kg
- Number Type: -1
- Attribute Name: THg/C_mg/kg
- Label: Total mercury to carbon ratio
- Description: Total mercury divided by total organic carbon in mg per kg
- Storage Type: decimal
- Measurment Type: nominal
- String Format: D-M-YY
- Unit: mg/kg
- Number Type: -1
- Attribute Name: Nitrogen_g/kg
- Label: Total nitrogen
- Description: Total nitrogen in the soil layer by elemental analyzer
- Storage Type: decimal
- Measurment Type: nominal
- String Format: D-M-YY
- Unit: g/kg
- Number Type: -1
- Attribute Name: Horizon_thickness_cm
- Label: Thickness of horizon
- Description: Thickness of the horizon sampled as listed in the full pit description
- Storage Type: decimal
- Measurment Type: nominal
- String Format: D-M-YY
- Unit: cm
- Number Type: -1
- Attribute Name: Calculated_bulk_density
- Label: Bulk density calculated from organic carbon
- Description: Bulk density calculated from carbon using the equation in Huntington et al. 1989. Carbon, organic matter, and bulk density relationships in a forested spodosol. Soil Science 148, 380-386
- Storage Type: decimal
- Measurment Type: nominal
- String Format: D-M-YY
- Unit: Mg/m3 (megagrams per cubic meter is the same as grams per cubic cm)
- Number Type: -1
- Attribute Name: kg_soil_per_m2
- Label: Mass of the soil horizon per m2 (kg)
- Description: The mass of the soil horizon per square meter, calculated from bulk density and horizon thickness. Used to calculate pools
- Storage Type: decimal
- Measurment Type: nominal
- String Format: D-M-YY
- Unit: kg
- Number Type: -1
- Attribute Name: mg_THg_per_m2
- Label: Mercury pool
- Description: Pool of total mercury in the horizon sampled. Calculated from THg concentration and the mass of the soil horizon per square meter
- Storage Type: decimal
- Measurment Type: nominal
- String Format: D-M-YY
- Unit: mg per square meter
- Number Type: -1
► Methods
- No methods recorded for this dataset
► Sampling Equipment
- No sampling equipment recorded for this dataset
► Site Characteristics
- No site characteristics recorded for this dataset