CALM SITE R41

LORINO

Site code

R41

Site name

Lorino

CAPS I Metadata form

 

CAPS II Metadata form

 

Site Photograph

Data

Responsible for data submission

Dmitri Zamolodchikov

Email Address

Dzamolod”-at-“cepl.rssi.ru

Institution/Organization

Center for Ecology and Forest Productivity, Moscow

Location description

Chukotka

Location Lat.

65.539667

Location Lon.

-171.630229

Elevation avg. (m)

45

Methods Grid

100

Methods Other

 

Landscape Description

Coastal plain

Vegetation /Classification

Palsa bog vegetation with inclusion of sedge tussocks

Soils (or Material)

Peat, underlain with sand

Thaw depth measurements (year started)               

2010

Air temp. measurements (year started)

2012 (planned)

Snow cover measurements (year started)

not planned

soil temp. measurements (year started)

2012 (planned)

soil moisture measurements (year started)

2011

general description of soil moisture (dry, moist, wet, saturated)

From wet to saturated

soil texture: if non organic describe texture, if organic indicate thickness of organic layer (cm)

Organic layer thickness from 10 to 30 cm, underlain with sand

 

 

 

SITE DESCRIPTION

Area is situated at the rear stitch of the coastal plain (about 40 m marine terrace) at the south ridge of Uelen Rise of Anadyr’-Seward (or Eskimo, or Chukchi) massif. Marine terrace of the second middle Pleistocene transgression (II3) is dissected with the springs flowing from Genkanyi (Tenianyi) Ridge (up to 907 m high). The site is situated on the Eastern watershed of Loren River Valley. The closest permanent weather station is at the settlement of Uelen (66°10' N, 169°50' W). Long-term observations at Uelen yield a mean annual air temperature of –7.8°C, and mean monthly temperatures of +5.3°C and –20.3°C for the warmest (July) and coldest (February) months, respectively At the peak of vegetative growth the projective cover on the CALM grid of Vaccinium myrtillis averaged 8%, Betula exilis 6%, other dwarf-shrub species 7%, sedges and other grasses 26%, Sphagnum mosses 26%, other mosses 11% and lichens 16%.

 

SOIL DESCRIPTION: (predominant texture, i.e., ‘sand’, ‘gravel’, ‘peat’, etc.): Peat, underlain with sand

 

SAMPLING DESIGN AND METHOD:

1-ha grid consists of a square array of surveyed permanent stakes separated by 10 m, yielding an 11 × 11 array of sampling nodes on each grid. Thaw depth sampling was conducted by manual probing in four replications at each stake. The four values for each sampling point are averaged, yielding a maximum of 121 data points per grid per probing date. Annual heaving/subsidence is measured in 10-15 nodes of the site. Measurements of water content are made annually at each grid point. The description of vegetation at 40x40 cm sample plots is performed at each stake.

 

 

 

REFERENCES:

 

DATA

 

 

Site Photos

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