USA - Michigan

Site Description

Locations

Wisconsin RIMA
Site Extent   Centroid: 43.214895, -89.715731
Top left: 43.667, -90.504 Bottom Right: 42.74, -90.48

Michigan RIMA
Site Extent   Centroid: 42.245101, -85.485806
Top left: 42.793, -86.477 Bottom Right: 41.681, -86.423

KBS LTER &GLBRC
Site Extent   Centroid: 42.423719, -85.382753
Top left: 42.507, -85.485 Bottom Right: 42.343, -85.488

KBS LTER MCSE

Biovariables, instrumentation and measurement frequency

A list of all the research protocols used at KBS LTER is at: http://lter.kbs.msu.edu/protocols


Parameters measured at the MCSE (with technique) include:

Soil

  • Greenhouse gas fluxes (CH4, N2O, CO2; manual and automated chambers)
  • Inorganic nitrogen (N) and short and long-term N mineralization (soil extractions)
  • Leachate - Inorganic and dissolved organic N (lysimeters)
  • Moisture (time domain reflectometry)
  • Microbial Biomass and biovolume
  • Chemistry - e.g., P, K Ca, Mg
  • Temperature, bulk density, pH, carbonates

Plant/crop

  • Yield
  • Aboveground Net Primary Productivity
  • Below-ground Net Primary Productivity
  • Litter
  • C, N, and P
  • Rooting Depth
  • Species composition

Water hydrochemistry:

Includes: Ca, Mg, Na, K, nitrate, total alkalinity, chloride, sulfate, ammonium, PO4-P, TDP, DOC


Weather
A fully equipped weather station is located at the KBS LTER MCSE. Campbell Scientific sensors connected to a CR1000 datalogger takes readings every 10 seconds and stores hourly integrated values.

Parameters (and model/instrumentation details) include:

  • Temperature (107 probe; vented shield at 3m)
  • Wind speed (014A; mounted at 10m)
  • Wind direction (024A; mounted at 10m)
  • Relative Humidity (HMP45C; mounted at 3m)
  • Solar radiation (Quantum sensor - LI190S; Pyranometer - LI200S; mounted at 3m).
  • Leaf wetness (1 m above ground)
  • Raingauge (NOAH IV)

GLBRC Scale-up Experiment

Biovariables, instrumentation and measurement frequency
Eddy covariance system
Each of the seven towers are equipped with continuous measurements of major microclimate variables at 30- min intervals, including air and soil temperature, relative humidity and VPD, precipitation, photosyntheticallyactive radiation (PAR), soil moisture (0-25 cm, Ms), soil heat flux and net radiation. The flux is measured at 10Hz
frequency and processed for 30-min means following the standard protocols of the FLUXNET using the ECProcessor including WPL corrections, planar rotation, and u* correction.”

Leaf photosynthesis
Measurements that are directly measured or determined from photosynthesis light and CO2 response curves (AQ and A/Ci curves) in dominant and co-dominant species at each site include:

  • Maximum photosynthetic capacity
  • Apparent quantum yield
  • Apparent carboxylation efficiency
  • Light half-saturation point
  • Daily average maximum photosynthesis
  • Dark respiration
  • Temperature sensitivity of leaf respiration
  • Minimum and optimum temperature for photosynthesis

Leaf gas exchange

  • LI-6400 (LICOR) twice yearly
  • Light response curves at ambient CO2 concentrations
  • CO2 response curves at saturating light levels

Soil respiration

  • LI-8100 (LICOR) - automated instantaneous and periodic sampling
  • PVC collars - manual biweekly sampling

Plant sampling

  • Leaf area index (LAI 2000 [LICOR] and Ceptometer [Decagon]) – Biweekly during growing season.
  • Leaf photosynthesis (LICOR 6000) – Monthly during the growing season
  • Root in-growth – Once a year during March-April

Sentinal-1 area Requests:

©2015 Joint Experiment for Crop Assessment and Monitoring
© HER MAJESTY THE QUEEN IN RIGHT OF CANADA SA MAJESTE LA REINE DU CHEF DU CANADA (2015)