Identification

Title

Toolik Lake E. Vaginatum Root Mineral Nutrition [Welker, J. and J. Fahnestock]

Alternative title(s)

46.765

Abstract

Soil cores of 5cm diameter and 20cm depth were taken at approximately 2 week intervals during the 2001 growing season. Three age classes of Eriophorum vaginatum roots (gray (senesced), brown (suberized) and white (active)) were extracted from the cores. Following extraction, cores were cut into 5 4cm sections and sorted for roots within 1 week of extraction. Prior to processing, cores were refrigerated at ~5(C. Some root samples were unwashed, then dried at 70(C for 48 hours prior to coupled combustion/reduction and gas chromatography analysis (CHN-1000, LECO Corporation). Additional samples were washed, and some unwashed, then analyzed using the soil-corrected method (Hunt et al., 1999). Unwashed roots were presumed to retain nutrient characteristics of the rhizoplane. Soil-corrected washed and unwashed root analysis was presumed to estimate nutrient concentrations specifically in the roots, provided a check upon the potential error associated with different degrees of washing and allow for correction of unwashed combustion/reduction and gas chromatography analyzed roots.

Resource type

dataset

Resource locator

https://data.eol.ucar.edu/dataset/46.765

protocol: https

name: Toolik Lake E. Vaginatum Root Mineral Nutrition [Welker, J. and J. Fahnestock] homepage

description: Dataset homepage

https://data.eol.ucar.edu/cgi-bin/codiac/fgr_form/id=46.765

protocol: https

name: Toolik Lake E. Vaginatum Root Mineral Nutrition [Welker, J. and J. Fahnestock] Data Order Form

description: Dataset order request form. Data files are made available via FTP.

function: order

Unique resource identifier

code

46.765

codeSpace

Dataset language

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

climatologyMeteorologyAtmosphere

Keywords

Keyword set

keyword value

dataset

originating controlled vocabulary

title

reference date

date type

revision

effective date

2014-10-16

Keyword set

keyword value

Field Surveys

Keyword set

keyword value

Arctic

Sub-Surface

Ecology

Vegetation

Keyword set

keyword value

EARTH SCIENCE > LAND SURFACE > SOILS > CARBON

EARTH SCIENCE > LAND SURFACE > SOILS > NITROGEN

originating controlled vocabulary

title

reference date

date type

revision

effective date

2018-02-27

Geographic location

West bounding longitude

-149.60000

East bounding longitude

-149.60000

North bounding latitude

68.63000

South bounding latitude

68.63000

Temporal reference

Temporal extent

Begin position

2001-06-11T00:00:00Z

End position

2001-06-27T23:59:59Z

Dataset reference date

date type

publication

effective date

2007-11-05T09:18:13Z

Frequency of update

Quality and validity

Lineage

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

none

Limitations on public access

none

Responsible organisations

Responsible party

contact position

EOL Data Support

organisation name

UCAR/NCAR - Earth Observing Laboratory

full postal address

PO Box 3000

Boulder

80307-3000

email address

datahelp@eol.ucar.edu

web address

https://data.eol.ucar.edu/

name: homepage

responsible party role

pointOfContact

Responsible party

organisation name

University of Alaska - Dept. of Biological Sciences

full postal address

Anchorage

99508

USA

telephone number

907-257-2701

email address

afjmw1@uaa.alaska.edu

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact

contact position

EOL Data Support

organisation name

UCAR/NCAR - Earth Observing Laboratory

full postal address

PO Box 3000

Boulder

80307-3000

email address

datahelp@eol.ucar.edu

web address

https://data.eol.ucar.edu/

name: homepage

responsible party role

pointOfContact

Metadata date

2024-12-26T23:48:47Z

Metadata language