Data Package Metadata View Summary

Coarse Woody Debris in the Clearcut Site at Harvard Forest since 2010

General Information

Data Package:
Local Identifier:	knb-lter-hfr.220.1
Title:	Coarse Woody Debris in the Clearcut Site at Harvard Forest since 2010
Alternate Identifier:	HF220
Abstract:	The woody debris survey was designed to quantify the baseline amount of woody debris within the clearcut site, including coarse and fine woody debris and stumps. Coarse woody debris and stumps were measured using the plot method, while fine woody debris was measured using the line intercept method. Our woody debris survey methods are detailed below. An initial or baseline survey was completed in 2010.
Publication Date:	2014

Time Period

Begin:

2010-06-17

End:

2010-07-20

People and Organizations
Contact:	Williams, Christopher (Clark University) [ email ]
Creator:	Vanderhoof, Melanie
Creator:	Williams, Christopher

Data Entities
Data Table Name:	hf220-01-cwd.csv
Description:	coarse woody debris
Data Table Name:	hf220-02-fwd.csv
Description:	fine woody debris

Detailed Metadata

Data Entities

Data Table


Data are Offline:
Medium:	hard drive
Request data:
Name:	hf220-01-cwd.csv
Description:	coarse woody debris
Number of Records:	1636
Number of Columns:	28

Table Structure

Object Name:

hf220-01-cwd.csv

Size:

151976 byte

Text Format:

Number of Header Lines:

1

Record Delimiter:

\r\n

Orientation:

column

Simple Delimited:

Field Delimiter:

,

Table Column Descriptions

Column Name:

date

plot

tag

type

species

length

base.dia

mid.dia

top.dia

dbh

decay

bark

ground

leaves

twigs

branches

branch.bark

bole.bark

sw.slough

sw.friable

hw.friable

hollow

conks

moss

lichen

termites

other.bugs

notes

Definition:

date

plot number

number on metal tag

type of coarse woody debris

species

log length

diameter of log base

diameter of log mid-point

diameter of log top

diameter at breast height

decay class

percent bark remaining on the bole

percent of bole in contact with the ground

leaves present or not present

twigs present or not present

branches present or not present

bark on branches present or not present

bark on bole present or not present

sapwood sloughing present or not present

sapwood friable present or not present

heartwood friable present or not present

hollow present or not present

conks present or not present

moss present or not present

lichen present or not present

termites present or not present

other bug signs present or not present

notes

Storage Type:

Measurement Type:

dateTime

nominal

nominal

nominal

nominal

ratio

ratio

ratio

ratio

ratio

ordinal

ratio

ratio

nominal

nominal

nominal

nominal

nominal

nominal

nominal

nominal

nominal

nominal

nominal

nominal

nominal

nominal

nominal

Measurement Values Domain:

Format	YYYY-MM-DD
Precision

Definition

plot number

Definition

number on metal tag

Definition

type of coarse woody debris

Definition

species

Unit	centimeter
Precision	1
Type	real

Unit	centimeter
Precision	0.1
Type	real

Unit	centimeter
Precision	0.1
Type	real

Unit	centimeter
Precision	0.1
Type	real

Unit	centimeter
Precision	0.1
Type	real

Definition

decay class

Unit	dimensionless
Precision	1
Type	real

Unit	dimensionless
Precision	1
Type	real

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	not present
Source

Code Definition

Code	1
Definition	present
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	not present
Source

Code Definition

Code	1
Definition	present
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	not present
Source

Code Definition

Code	1
Definition	present
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	not present
Source

Code Definition

Code	1
Definition	present
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	not present
Source

Code Definition

Code	1
Definition	present
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	not present
Source

Code Definition

Code	1
Definition	present
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	not present
Source

Code Definition

Code	1
Definition	present
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	not present
Source

Code Definition

Code	1
Definition	present
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	not present
Source

Code Definition

Code	1
Definition	present
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	not present
Source

Code Definition

Code	1
Definition	present
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	not present
Source

Code Definition

Code	1
Definition	present
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	not present
Source

Code Definition

Code	1
Definition	present
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	not present
Source

Code Definition

Code	1
Definition	present
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0
Definition	not present
Source

Code Definition

Code	1
Definition	present
Source

Definition

notes

Missing Value Code:

Code	NA
Expl	missing value

Code	NA
Expl	missing value

Code	NA
Expl	missing value

Code	NA
Expl	missing value

Code	NA
Expl	missing value

Code	NA
Expl	missing value

Code	NA
Expl	missing value

Code	NA
Expl	missing value

Code	NA
Expl	missing value

Code	NA
Expl	missing value

Code	NA
Expl	missing value

Code	NA
Expl	missing value

Code	NA
Expl	missing value

Code	NA
Expl	missing value

Code	NA
Expl	missing value

Code	NA
Expl	missing value

Code	NA
Expl	missing value

Code	NA
Expl	missing value

Code	NA
Expl	missing value

Code	NA
Expl	missing value

Code	NA
Expl	missing value

Code	NA
Expl	missing value

Code	NA
Expl	missing value

Code	NA
Expl	missing value

Code	NA
Expl	missing value

Code	NA
Expl	missing value

Code	NA
Expl	missing value

Code	NA
Expl	missing value

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data are Offline:
Medium:	hard drive
Request data:
Name:	hf220-02-fwd.csv
Description:	fine woody debris
Number of Records:	526
Number of Columns:	5

Table Structure

Object Name:

hf220-02-fwd.csv

Size:

12396 byte

Text Format:

Number of Header Lines:

1

Record Delimiter:

#x0A

Orientation:

column

Simple Delimited:

Field Delimiter:

,

Table Column Descriptions

Column Name:

date

transect

diameter

decay.class

notes

Definition:

date

transect number

the diameter of each piece measured where it intersected the transect

decay class

notes

Storage Type:

Measurement Type:

dateTime

nominal

ratio

ordinal

nominal

Measurement Values Domain:

Format	YYYY-MM-DD
Precision	1 day

Definition

transect number

Unit	centimeter
Precision	0.1
Type	real

Definition

decay class

Definition

notes

Missing Value Code:

Code	NA
Expl	missing value

Code	NA
Expl	missing value

Code	NA
Expl	missing value

Code	NA
Expl	missing value

Code	NA
Expl	missing value

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Package Usage Rights

This dataset is released to the public and may be freely downloaded. Please keep the designated Contact person informed of any plans to use the dataset. Consultation or collaboration with the original investigators is strongly encouraged. Publications and data products that make use of the dataset must include proper acknowledgement. For more information on LTER Network data access and use policies, please see: http://www.lternet.edu/data/netpolicy.html.

Keywords

By Thesaurus:
LTER controlled vocabulary	clearcuts, coarse woody debris, timber harvest
LTER core area	organic matter
HFR default	Harvard Forest, HFR, LTER, USA

Methods and Protocols

These methods, instrumentation and/or protocols apply to all data in this dataset:

Methods and protocols used in the collection of this data package

Description:

Coarse Woody Debris (CWD)

Coarse woody debris (at least 7.5 cm in diameter at the larger end) included logs (less than 45° off the ground), whole tree snags (intact bole with branches and twigs), log snags (standing bole, more than 45° off the ground) and stumps (log snag less than 1 m in height). All coarse woody debris within nine 20 meters by 20 meters plots were measured and tagged. Each of the four corners of the plots was marked with permanent, painted rebar stakes. For each piece of CWD within each plot, a metal tag was attached, and the genus (if identifiable), decay class (1-5), as defined by Harmon and Sexton (1996), and physical and biological characteristics were recorded. For logs and log snags, the length and diameter at both ends and middle were measured. For whole tree snags, the DBH was recorded. For stumps the height and base and top diameters were measured.

Assumptions: CWD pieces that extended beyond the edge of the plot were measured up until the edge of the plot. If less than one meter of a piece of CWD was visible or accessible then the piece was considered to be "underground" and was not measured. In addition, pieces of wood with a large diameter but less than a meter in length were tagged and measured if greater than 0.5 meters in length (parts of logs rejected from the commercial harvest). Stumps that were too degraded to hold a tag were not measured or tagged.

Fine Woody Debris (FWD)

All fine woody debris (all dead, downed wood with a diameter between 2 and 7.5 cm) was measured along five 50 m transects that radiated out from the flux tower. For each piece of FWD, the diameter, at the point of intersection and the decay class (1-5) was measured. Pieces with a large diameter but less than 0.5 m in length were also included as they were excluded from the CWD plots, as described above.

People and Organizations

Publishers:

Organization:

Harvard Forest

Address:

324 North Main Street,

Petersham, MA 01366 USA

Phone:

(978) 724-3302 (voice)

Phone:

(978) 724-3595 (fax)

Web Address:

http://harvardforest.fas.harvard.edu

Creators:

Individual:

Melanie Vanderhoof

Individual:

Christopher Williams

Contacts:

Individual:

Christopher Williams

Organization:

Clark University

Address:

Graduate School of Geography,

950 Main Street,

Worcester, MA 01610 USA

Phone:

(508) 793-7323 (voice)

Email Address:

cwilliams@clarku.edu

Temporal, Geographic and Taxonomic Coverage

Temporal, Geographic and/or Taxonomic information that applies to all data in this dataset:

Time Period

Begin:

2010-06-17

End:

2010-07-20

Sampling Site:

Description:

Prospect Hill Tract (Harvard Forest)

Site Coordinates:

Longitude (degree):	-72.174	Latitude (degree):	+42.546
Altitude (meter):	403

Project

Other Metadata

Additional Metadata

additionalMetadata
        |___text '\n    '
        |___element 'metadata'
        |     |___text '\n      '
        |     |___element 'additionalClassifications'
        |     |     |___text '\n        '
        |     |     |___element 'status'
        |     |     |     |___text 'ongoing'
        |     |     |___text '\n        '
        |     |     |___element 'researchTopic'
        |     |     |     |___text 'plot'
        |     |     |___text '\n        '
        |     |     |___element 'studyType'
        |     |     |     |___text 'long-term measurement'
        |     |     |___text '\n      '
        |     |___text '\n    '
        |___text '\n  '

Additional Metadata

additionalMetadata
        |___text '\n    '
        |___element 'metadata'
        |     |___text '\n      '
        |     |___element 'additionalLinks'
        |     |     |___text '\n        '
        |     |     |___element 'url'
        |     |     |     |  \___attribute 'name' = 'Respiration of Coarse Woody Debris in the Clearcut Site at Harvard Forest in 2011'
        |     |     |     |___text 'http://harvardforest.fas.harvard.edu:8080/exist/xquery/data.xq?id=hf221'
        |     |     |___text '\n        '
        |     |     |___element 'url'
        |     |     |     |  \___attribute 'name' = 'Vegetation Cover in the Clearcut Site at Harvard Forest since 2010'
        |     |     |     |___text 'http://harvardforest.fas.harvard.edu:8080/exist/xquery/data.xq?id=hf222'
        |     |     |___text '\n      '
        |     |___text '\n    '
        |___text '\n  '

Copyright 2024 Environmental Data Initiative. This material is based upon work supported by the National Science Foundation under grants #2223103 and #2223104. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. Please contact us with questions, comments, or for technical assistance regarding this web site or the Environmental Data Initiative. Please read our privacy policy to know what information we collect about you and to understand your privacy rights.

EDI is a collaboration between the University of New Mexico and the University of Wisconsin – Madison, Center for Limnology: