OZCAR-RI AgrHyS Environmental Research Observatory Site of Kerbernez - France

Basic Information
Site Name
OZCAR-RI AgrHyS Environmental Research Observatory Site of Kerbernez
Short name
ERO AgrhyS Kerbernez Site
Country
France
Operating Organisation
Funding Agency
Site Description
Located in South West of Brittany, western France, the elementary catchments of Kerbernez are underlain by old bedrock and is characterised by a oceanic, humid and temperate climate and by an intensive agriculture. In every catchment, the hydrology is controlled by a shallow aquifer made of the unconsolidated weathered bedrock. The water table in the aquifer is close to the soil surface in bottom land areas of catchment. During storm event, surface runoff occurs mainly over the saturated soils of bottom lands. The Environmental Research Observatory (ERO) AgrHyS focuses on the response times of changing Agro-Hydro-Systems (defined as a catchment influenced by agricultural activity) for hydro-chemical fluxes.
Last modified
2020-03-23 03:03:09
General Characteristics, Purpose, History
Site Status
existing
Year Established
1993
Purpose
The Site of Kerbernez is specially dedicated to the study of processes related to shallow groundwater recharge, water mixing in the vadose zone, and hillslope groundwater fluxe to headwater streams in agricultural land uses
History
Formerly the Kerbernez site was devoted to an agronomic study that has aimed at quantifying the crop yield and the soil evolution under variable agricultural and crop practices. A field was divided in 16 plots in 1978; each plot was cultivated with corn with organic fertilization (manure), corn with mineral fertilization, permanent meadow and rotation cereal/corn. In 1989, lysimeters were installed in another field cultivated with grassland grazed by dairy cows to quantify nitrate leaching in soil. Since 1992 nitrate and chloride concentrations were monitored at twelve locations along the stream network of the Kerbernez site. Hydrometric instruments to monitor intensively stream water and groundwater levels and chemistry were set up in 1998 in three catchments, Le Puits and two of its sub-catchments, Kerbernez and Kerrien.
Photos
not defined
Geographic
Size
130.00ha
Elevation (average)
30.00msl
Elevation (min)
10.00msl
Elevation (max)
55.00msl
Affiliation and Network Specific Information
Affiliation
ILTERThis site is a verified "ILTER" member.
LTER EuropeThis site is a verified "LTER Europe" member.
LTER France (CZO_EU_FR_011)This site is a verified "LTER France" member.
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Bounding Box [.shp] [.kml]
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