Hyytiälä SMEAR II LTER - Finland

Basic Information
Site Name
Hyytiälä SMEAR II LTER
Short name
HYY-SMR
Country
Finland
Site Manager
Funding Agency
Keywords
aboveground production
aerosols
aquatic ecosystems
aquatic GHGs
atmospheric chemistry
atmospheric deposition
atmospheric physics
atmospheric processes
belowground biomass
BVOC emissions
canopy cover
carbon fluxes
carbonyl sulphide
CH4 fluxes
CO2 flux per soil horizon
Disssolved organic Carbon and Nitrogen (DOC, DON)
ecosystem processes
ecosystem properties
evapotranspiration
Fluorescence active
Fluorescence passive
forest growth
Forest management
freshwater
GHG (Greenhouse Gas) Fluxes
GPP
ground vegetation
heat flux
mosses
N2O flux
NPP (Net Primary Production)
Ozone concentration
ozone flux
PAR (Photosynthetic Active Radiation)
peatland ecology
photosynthesis
PRI (Photochemical Reflectance Index)
Radiation below canopy
respiration rates
sap flow
silicon
soil carbon
soil chemistry
soil microbiology
soil respiration
sphagnum diversity
stem respiration
stream water chemistry
sun-induced fluorescence
tree ecophysiology
VOC flux
Water: Chlorophyll a content
Site Description
The SMEAR site (Station for Measuring Ecosystem-Atmosphere Relations) is situated in the Hyytiälä Forestry Field Station of the University of Helsinki. The site consists of a managed, 60-yr old Scots pine forest stand, two open oligotrophic fen sites and a humic lake with forested catchment. The main idea of SMEAR type infrastructures is continuous, comprehensive measurements of fluxes, storages and concentrations in the land ecosystem–atmosphere continuum. The forest measurements are operated continuously since 1996, and include e.g. leaf, stand and ecosystem scale measurements of greenhouse gases, volatile organic compounds, pollutants (e.g. O3, SO2, NOx) and aerosols, in addition to full suite of meteorological measurements. The biogeochemical cycles and vegetation–soil–atmosphere interactions are studied both experimentally and with long-term observations. The site has full carbon, water and nitrogen budgets made over 10 years, and it is a full ICOS ecosystem and atmospheric station.
Last modified
2020-06-29 10:06:11
General Characteristics, Purpose, History
Site Status
Operational
Year Established
1910
Purpose
The site is primarily focused on the studies on land surface–atmosphere relationships, mostly by conducting long-term observation. The overall aim is to provide information on climate and environmental changes; these questions are by definition such that they can be effectively studied only by collecting multidisciplinary, long-term data sets.
History
The Hyytiälä Forestry Field Station was established in 1910. The SMEAR 2 flux measurement station established in 1995.
Parameters
Photos
Hyytiälä forest and Tall tower

Hyytiälä forest and Tall tower

Siikaneva peatland measurement site

Siikaneva peatland measurement site

Lake Kuivajärvi, Hyytiälä

Lake Kuivajärvi, Hyytiälä

Hyytiälä pine forest

Hyytiälä pine forest

on top of the tower

on top of the tower

branch enclosure for measuring gas excahnge

branch enclosure for measuring gas excahnge

Hyytiälä tall tower

Hyytiälä tall tower

Geographic
Size
20000.00ha
Elevation (average)
180.00msl
Elevation (min)
140.00msl
Elevation (max)
200.00msl
Affiliation and Network Specific Information
Affiliation
ILTERThis site is a verified "ILTER" member.
LTER EuropeThis site is a verified "LTER Europe" member.
ICOS (http://meta.icos-cp.eu/ontologies/stationentry/AS/ATM-HYY)The affiliation of this site with "ICOS" is not verified.
ACTRISThe affiliation of this site with "ACTRIS" is not verified.
LTER Finland (LTER_EU_FI_007)This site is a verified "LTER Finland" member.
INTERACT (https://eu-interact.org/field-sites/hyytiala-forestry-reseatch-station-smear-ii/)The affiliation of this site with "INTERACT" is not verified.
AnaEEThe affiliation of this site with "AnaEE" is not verified.
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