CALM SITE R46

CHARA BELENKIY

 

Site code

R46

 

Site name

Chara_Belenkiy

 

CAPS I Metadata form

NA

 

CAPS II Metadata form

NA

 

Site Photograph

Responsible for data submission

Aleksyutina Daria, Gergesova Julia, Bolotyuk Mikhail, Sergeev Dmitry

 

Email Address

aleksyutina-at-gmail.com; sergueevdo-at-mail.ru

 

Institution/Organization

Moscow State University; Institute of Environmental Geoscience RAS,

 

Location description

Verhne-Charsky basin, north of the Chita region

 

Location Lat.

56,76038 (for site center)

 

Location Lon.

118,18903(for site center)

 

Elevation avg. (m)

728

 

Methods Grid

100

 

Methods Other

Soil temperature, Soil Moisture, Soil density

 

Landscape Description

Plain of first terrace

 

Vegetation /Classification

Taiga (larch-grass-dwarf shrub-moss landcover)

 

Soils (or Material)

Sandy silt and peat overlaid by sands

 

Thaw depth measurements (year started)

2013

 

Air temp. measurements (year started)

2013

 

Snow cover measurements (year started)

No

 

Soil temp. measurements (year started)

2013

 

soil moisture measurements (year started)

 

 

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

From moist to saturated

 

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

More than 30 cm

 

 SITE DESCRIPTION

Active layer monitoring at the Chara_Belenkiy CALM grid was initiated in 2013. Studied area is located in the southwest from New Chara city, north of the Chita region, East Siberia. CALM site is situated on the first terrace with elevation ranging from 729 to 730 m above sea level within the Verhne-Charsky Basin between mountain ridges Kodar and Udokan. Permafrost has a wide distribution on this area. In the east and east-south part of CALM site has larch-grass-dwarf shrub-moss cover are dominate. In another part of CALM site covered by dwarf shrub-moss with grass and lichen somewhere. The measurements of the active layer thickness show that the smallest values (0.31m) of seasonal thaw depths are observed under dwarf shrub-moss cover. The highest values (up to 1.28m) of active layer thickness occurred under old dirt roads. In this year average thaw depth was 0.59 m.

 

 

SOIL DESCRIPTION: (predominant texture, i.e., ‘sand’, ‘gravel’, ‘peat’, etc.): Upper part of geological section is composed by sandy silt and peat overlaid by alluvial sands. In previous year moisture (water mass to mass of dry soil), density of these soils were studied in laboratory. The water content of peat varies from 55 to 460 % and density varies from 0.3 to 1.1 g/cm3. The moisture of sands varies from 10 to 30% and density varies from 1.3 to 1.55 g/cm3. The moisture of sandy silt ranges from 15 to 260% and density varies from 1.1 to 1.85 g/cm3.

 

SAMPLING DESIGN AND METHOD:

1-ha grid consists of a square array of permanent stakes separated by 10 m, yielding an 11 × 11 array of sampling nodes on each grid. Thawed depth measurements were conducted at least thrice by manual probing at each stake. The three values for each sampling point are averaged, yielding a maximum of 121 data points per grid per probing date.

 

DATA

 

Site Photos

Data Access