Aspen Characteristics - Lassen National Forest [ds371]

SDE Feature Class

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Tags
Lassen County, environment, Post 2000, CA, Populus tremuloides, Lassen National Forest, Quaking aspen, Eagle Lake Ranger District, biota, Aspen, California


Summary

The database was designed to identify the location of each aspen stand in the Ranger District and assess it ecological condition. The Eagle Lake Ranger District and Lassen National Forest uses the database as a step in the process of evaluating the need of management intervention.

Description

The database represents point locations and associated stand assessment data collected in aspen stands in the in the Eagle Lake Ranger District, Lassen National Forest, Lassen County, California. Data were gathered during the summers of 2001-2005. Observations were conducted by trained Forest Service crews. Assessments were conducted within aspen stands in the region, or stands identified during field surveys. This dataset is considered to be a complete inventory of aspen in these watersheds, based on the extensive effort to survey all stands in the region. Aspen stands were assessed and delineated using a protocol developed by the lead investigators at the Eagle Lake Ranger District. Assessments included information describing the ecological condition of the aspen stand, and if browsing of the aspen was present or absent. Associated with this point layer is a polygon layer (LASSEN_NF_EAGLELAKE_POLY) containing aspen stands delineated in conjunction with the aspen assessment information. Data Compilation: The Aspen Delineation Project (ADP) is a collaborative effort of the U.S. Forest Service's Pacific Southwest Region, the California Department of Fish and Games Resource Assessment Program, and the California Office of Bureau of Land Management. Principal Investigator for ADP is David Burton; visit: www.aspensite.org for more information regarding the ADP. The Department of Fish and Games, Resource Assessment Program compiled this information from the collaborating agencies and other researchers, and formatted the data into a common database for the purpose of facilitating access to data related to the conservation of Quaking Aspen in California. This information portal falls within the ADP goals to help agencies and land managers identify, map, treat, and monitor aspen habitats. This dataset is a portion of a master database compiled during a year long effort in 2005 to pull together current GIS layers and maps depicting Aspen communities in California.

Credits

Lassen National Forest, Eagle Lake District

Use limitations

Recognition that this data set was created by California Department of Fish and Game from information provided by agencies across California.

Extent

West -121.298822 East -120.588287
North 40.846793 South 40.208201

Scale Range

ArcGIS Metadata

Topics and Keywords

Themes or categories of the resource biota, environment


* Content type Downloadable Data


Place keywords Lassen County, CA, Lassen National Forest, Eagle Lake Ranger District, California

Temporal keywords Post 2000

Theme keywords Populus tremuloides, Quaking aspen, Aspen

Theme keywords environment, biota

Thesaurus
Title ISO 19115 Topics Category




Citation

* Title DS0371_20071218


Edition 1


Presentation formats * digital map


Citation Contacts

Responsible party
Organization's name Lassen National Forest
Contact's role originator


Resource Details

Dataset languages English(UNITED STATES)


Spatial representation type * vector


Graphic overview
File name http://www.dfg.ca.gov/habitats/rap/projects/aspen/maps/state/map.aspx?id=ca
File description Images
File type JPG

* Processing environment Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.1.1.3143


Credits
Lassen National Forest, Eagle Lake District
ArcGIS item properties
* Name DS0371_20071218
* Location Server=; :; Database=; User=; Version=
* Access protocol ArcSDE Connection

Extents

Extent
Description
ground condition
Temporal extent
Beginning date 2001-01-01
Ending date 2005-01-01

Extent
Geographic extent
Bounding rectangle
Extent type Extent used for searching
* West longitude -121.298822
* East longitude -120.588287
* North latitude 40.846793
* South latitude 40.208201
* Extent contains the resource Yes

Extent in the item's coordinate system
* West longitude -13502923.064200
* East longitude -13423826.751500
* South latitude 4896243.828100
* North latitude 4989769.851600
* Extent contains the resource Yes

Resource Points of Contact

Point of contact
Individual's name Tom Rickman
Organization's name Eagle Lake Ranger District, Lassen National Forest
Contact's position Wildlife Biologist
Contact's role point of contact


Contact information
Phone
Voice (530) 257-4188

Address
Type postal
Delivery point 2070 Orange Dr.
City Susanville
Administrative area CA
Postal code 95663
Country US
e-mail address trickman@fs.fed.us



Resource Maintenance

Resource maintenance

Resource Constraints

Legal constraints
Limitations of use
Neither the State of California, California Department of Fish and Game, nor the Aspen Delineation Project warrants the correctness or accuracy of the data presented here. They are used at the user's own risk.
Other constraints
No constraints, public data
Security constraints
Classification system NA


Additional restrictions
NA


Constraints
Limitations of use
Recognition that this data set was created by California Department of Fish and Game from information provided by agencies across California.

Spatial Reference

ArcGIS coordinate system
* Type Projected
* Geographic coordinate reference GCS_WGS_1984
* Projection WGS_1984_Web_Mercator_Auxiliary_Sphere
* Coordinate reference details
Projected coordinate system
Well-known identifier 102100
X origin -20037700
Y origin -30241100
XY scale 10000
Z origin 0
Z scale 1
M origin 0
M scale 1
XY tolerance 0.001
Z tolerance 2
M tolerance 2
High precision true
Latest well-known identifier 3857
Well-known text PROJCS["WGS_1984_Web_Mercator_Auxiliary_Sphere",GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Mercator_Auxiliary_Sphere"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",0.0],PARAMETER["Standard_Parallel_1",0.0],PARAMETER["Auxiliary_Sphere_Type",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",3857]]

Reference system identifier
* Value 3857
* Codespace EPSG
* Version 7.11.2


Spatial Data Properties

Vector
* Level of topology for this dataset geometry only


Geometric objects
Feature class name DS0371_20071218
* Object type point
* Object count 702



ArcGIS Feature Class Properties
Feature class name DS0371_20071218
* Feature type Simple
* Geometry type Point
* Has topology FALSE
* Feature count 702
* Spatial index TRUE
* Linear referencing FALSE



Data Quality

Scope of quality information
Resource level dataset




Data quality report - Conceptual consistency
Measure description
Known caveats of the data: Caveats include: 1) the accuracy of the points representing the stand are limited by the quality of the GPS unit (i.e. a Trimble unit) The field crews collected data using using the GPS track method (i.e. The track method creates smooth polygons from a continuous GPS collection (a track) along the entire perimeter of the aspen stand.




Data quality report - Completeness omission
Measure description
>95% of Ranger District was cover in assessment.




Data quality report - Quantitative attribute accuracy
Measure description
Significant general assumptions of the data are: 1) the protocol produces qualitative assessment information and is limited to the protocol use. (2) GPS reading provide are for general geo-referencing and not for providing the exact boundary of any stand. Original location information was gathered using Trimble GPS units using NAD 27 data using the GPS track method (I.E. The track method creates smooth polygons from a continuous GPS collection (a track) along the entire perimeter of the aspen stand.




Data quality report - Absolute external positional accuracy
Dimension horizontal


Measure description
Original location information was gathered using hand held Trimble GPS units using NAD 27 datum. The field crews collected data using using the GPS track method (I.E. The track method creates smooth polygons from a continuous GPS collection (a track) along the entire perimeter of the aspen stand.




Lineage

Process step
When the process occurred 2006-01-01
Description
Received data from Eagle Lake Ranger District National Forest. Merged data into master aspen data set for the California Department of Fish and Game.


Process contact
Individual's name David Burton
Organization's name Aspen Delineation Project
Contact's position Program Director
Contact's role processor


Contact information
Phone
Voice 916-663-2574

Address
e-mail address peregrines@prodigy.net





Geoprocessing history

Process
Date 2007-12-1709:03:59
Tool location C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Data Management Tools.tbx\CopyFeatures
Command issued
Include in lineage when exporting metadata No


Process
Date 2007-12-1816:40:43
Tool location C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Data Management Tools.tbx\CopyFeatures
Command issued
Include in lineage when exporting metadata No


Process
Date 2011-07-2108:53:56
Tool location C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Conversion Tools.tbx\FeatureClassToFeatureClass
Command issued
Include in lineage when exporting metadata No


Process
Date 2013-06-2114:53:15
Tool location c:\program files (x86)\arcgis\desktop10.1\ArcToolbox\Toolboxes\Data Management Tools.tbx\Project
Command issued
Include in lineage when exporting metadata No


Distribution

Distributor
Contact information
Individual's name David Burton
Organization's name Aspen Delineation Project
Contact's position Program Director
Contact's role distributor


Contact information
Address
Type postal
Delivery point 2070 Orange Drive
City Penryn
Administrative area CA
Postal code 95773
Country US





Distribution format
* Name SDE Feature Class


Transfer options
Online source
Location http://bios.dfg.ca.gov/

Online source
Location ftp://ftp.dfg.ca.gov/BDB/GIS/BIOS/Public_Datasets/300_399/ds371.zip

Fields

Details for object DS0371_20071218
* Type Feature Class
* Row count 702


Field DATAFILE
* Alias DATAFILE
* Data type String
* Width 11
* Precision 0
* Scale 0
* Field description
Alpha-numberic stand identifier
* Description source
Lassen National Forest, Eagle Lake District


Field Shape
* Alias UNQ_PT_ID
* Data type String
* Width 25
* Precision 0
* Scale 0
* Field description
Feature geometry.
* Description source
ESRI
* Description of values
Coordinates defining the features.




Field UNQ_PT_ID
* Alias STAND_ID
* Data type String
* Width 7
* Precision 0
* Scale 0
Field description
Unique Aspen ID within UNQ_ASP_ID (Unique ASP_ID+Alpha or Numeric Value (Arbitrary))
Description source
CDFG


Field STAND_ID
* Alias GPS_DATE
* Data type Date
* Width 36
* Precision 0
* Scale 0
* Field description
Name of aspen stand
* Description source
Lassen National Forest, Eagle Lake District


Field GPS_DATE
* Alias SOURCE_NM
* Data type String
* Width 21
* Precision 0
* Scale 0
* Field description
Date when data was collected
* Description source
Lassen National Forest, Eagle Lake District


Field SOURCE_NM
* Alias ACRES
* Data type Double
* Width 8
* Precision 38
* Scale 8
Field description
Name of the Source
Description source
CDFG
List of values
Value Lassen NF, Eagle Lake
Description Name for Source "Ha"


Value Lassen NF, Eagle Lake
Description Name for Source "Hb"


Value Lassen NF, Eagle Lake
Description Name for Source "Hc"




Field ACRES
* Alias OBJECTID
* Data type OID
* Width 4
* Precision 10
* Scale 0
* Field description
Area of stand given in acres
* Description source
Lassen National Forest, Eagle Lake District
* Description of values
Sequential unique whole numbers that are automatically generated.




Field OBJECTID
* Alias HIGHEST
* Data type String
* Width 1
* Precision 0
* Scale 0
* Field description
Internal feature number.
* Description source
ESRI
* Description of values
Sequential unique whole numbers that are automatically generated.




Field HIGHEST
* Alias HIGH
* Data type String
* Width 1
* Precision 0
* Scale 0
* Field description
Determines if the stand is of the highest category for risk of loss.
* Description source
Lassen National Forest, Eagle Lake District


Field HIGH
* Alias LOW
* Data type String
* Width 1
* Precision 0
* Scale 0
* Field description
Determines if the stand is of the high category for risk of loss.
* Description source
Lassen National Forest, Eagle Lake District


Field LOW
* Alias DEAD
* Data type String
* Width 1
* Precision 0
* Scale 0
* Field description
Determines if the stand is of the low risk of loss category.
* Description source
Lassen National Forest, Eagle Lake District


Field DEAD
* Alias COMMENT
* Data type String
* Width 18
* Precision 0
* Scale 0
* Field description
Determines if the stand is completely dead.
* Description source
Lassen National Forest, Eagle Lake District


Field COMMENT
* Alias AGE
* Data type String
* Width 1
* Precision 0
* Scale 0
Field description
Name of aspen stand with some additional comments


Field AGE
* Alias SUCKERS
* Data type String
* Width 3
* Precision 0
* Scale 0
* Field description
Age classification of aspen stand
* Description source
Lassen National Forest, Eagle Lake District
List of values
Value E
Description Even-aged


Value M
Description Multi-aged


Value T
Description Two-aged




Field SUCKERS
* Alias FOURFIVE
* Data type String
* Width 1
* Precision 0
* Scale 0
* Field description
Perceived density of aspen suckers
* Description source
Lassen National Forest, Eagle Lake District
List of values
Value A
Description Absent


Value C
Description Common


Value D
Description Dense


Value S
Description Sparse




Field FOURFIVE
* Alias FIVEELEVEN
* Data type String
* Width 1
* Precision 0
* Scale 0
* Field description
Perceived density of aspen under a heigh of 4.5 feet
* Description source
Lassen National Forest, Eagle Lake District
List of values
Value A
Description Absent


Value C
Description Common


Value D
Description Dense


Value S
Description Sparse




Field FIVEELEVEN
* Alias GE11
* Data type String
* Width 1
* Precision 0
* Scale 0
* Field description
Perceived density of aspen over a height of 4.5 feet and under 11 inches DBH
* Description source
Lassen National Forest, Eagle Lake District
List of values
Value A
Description Absent


Value C
Description Common


Value D
Description Dense


Value S
Description Sparse




Field GE11
* Alias SURFACE_DE
* Data type String
* Width 30
* Precision 0
* Scale 0
* Field description
Perceived density of aspen greather than 11 inches DBH
* Description source
Lassen National Forest, Eagle Lake District
List of values
Value A
Description Absent


Value C
Description Common


Value D
Description Dense


Value S
Description Sparse




Field SURFACE_DE
* Alias REFUGIA
* Data type String
* Width 1
* Precision 0
* Scale 0
* Field description
Surface desprition of the aspen stand
* Description source
Lassen National Forest, Eagle Lake District


Field REFUGIA
* Alias DESCRIPTIO
* Data type String
* Width 1
* Precision 0
* Scale 0
* Field description
States if the aspen stand is located in a geologic refugia from browsing and/or fire
* Description source
Lassen National Forest, Eagle Lake District


Field DESCRIPTIO
* Alias DOMINANT_C
* Data type String
* Width 12
* Precision 0
* Scale 0
* Field description
Refugia description
* Description source
Lassen National Forest, Eagle Lake District


Field DOMINANT_C
* Alias RIPARIAN_V
* Data type String
* Width 39
* Precision 0
* Scale 0
* Field description
Dominant conifer species present in stand
* Description source
Lassen National Forest, Eagle Lake District
List of values
Value DF
Description Douglas Fir


Value IC
Description Incense Cedar


Value JP
Description Jeffery Pine


Value LP
Description Lodgepole Pine


Value MA
Description Mountain Alder


Value MH
Description Mountain Mahogany


Value PP
Description Ponderosa Pine


Value RF
Description Red Fir


Value SP
Description Sugar Pine


Value WF
Description White Fir


Value WJ
Description Western Juniper


Value WP
Description Western White Pine


Value FIR
Description White Fir




Field RIPARIAN_V
* Alias FIRE_SCAR
* Data type String
* Width 1
* Precision 0
* Scale 0
* Field description
Type of riparian vegetation in stand
* Description source
Lassen National Forest, Eagle Lake District


Field FIRE_SCAR
* Alias FENCE
* Data type String
* Width 1
* Precision 0
* Scale 0
* Field description
States if fire scars are present on trees within or adjacent to aspen stand
* Description source
Lassen National Forest, Eagle Lake District


Field FENCE
* Alias GRAZER
* Data type String
* Width 7
* Precision 0
* Scale 0
* Field description
States if fencing is a recommended treatment.
* Description source
Lassen National Forest, Eagle Lake District


Field GRAZER
* Alias TIMBER
* Data type String
* Width 1
* Precision 0
* Scale 0
* Field description
Defines what kind of animal is grazing/browsing the stand
* Description source
Lassen National Forest, Eagle Lake District
List of values
Value C
Description Cattle


Value D
Description Deer


Value E
Description Elk


Value U
Description Unknown




Field TIMBER
* Alias OTHER
* Data type String
* Width 67
* Precision 0
* Scale 0
* Field description
States if conifer removal is a recommended stand treatment.
* Description source
Lassen National Forest, Eagle Lake District


Field OTHER
* Alias TREATMENT
* Data type String
* Width 93
* Precision 0
* Scale 0
* Field description
Other recommendation for stand treatement
* Description source
Lassen National Forest, Eagle Lake District


Field TREATMENT
* Alias KEY_CODE
* Data type String
* Width 6
* Precision 0
* Scale 0
* Field description
Kind of past treatment on stand
* Description source
Lassen National Forest, Eagle Lake District


Field KEY_CODE
* Alias SOURCE
* Data type String
* Width 2
* Precision 0
* Scale 0
Field description
DFG Alphanumeric ID (Source+Key Num)
Description source
CDFG


Field SOURCE
* Alias KEY_NUM
* Data type String
* Width 4
* Precision 0
* Scale 0
Field description
Data origin code
Description source
CDFG
List of values
Value Ha
Description Lassen National Forest, Eagle Lake District
Enumerated domain value definition source Lassen National Forest, Eagle Lake District


Value Hb
Description Lassen National Forest, Eagle Lake District
Enumerated domain value definition source Lassen National Forest, Eagle Lake District


Value Hc
Description Lassen National Forest, Eagle Lake District
Enumerated domain value definition source Lassen National Forest, Eagle Lake District




Field KEY_NUM
* Alias MOD_
* Data type String
* Width 1
* Precision 0
* Scale 0
Field description
Autonumber
Description source
CDFG


Field MOD_
* Alias UNQ_ASP_ID
* Data type String
* Width 17
* Precision 0
* Scale 0




Field UNQ_ASP_ID
* Alias Shape
* Data type Geometry
* Width 4
* Precision 0
* Scale 0
Field description
Unique Aspen stand + the date of data collection or 00/00/YYYY
Description source
CDFG
* Description of values
Coordinates defining the features.




Field SHAPE
* Alias Shape
* Data type Geometry
* Width 4
* Precision 0
* Scale 0
* Field description
Feature geometry.
* Description source
ESRI
* Description of values
Coordinates defining the features.






Metadata Details

Metadata language English(UNITED STATES)
Metadata character set utf8 - 8 bit UCS Transfer Format


Scope of the data described by the metadata dataset
Scope name * dataset


* Last update 2014-04-28


ArcGIS metadata properties
Metadata format ArcGIS1.0
Metadata style FGDC CSDGM Metadata


Created in ArcGIS for the item 2014-03-0616:10:28
Last modified in ArcGIS for the item 2014-04-2810:21:31


Automatic updates
Have been performed Yes
Last update 2014-04-2810:21:31


Metadata Contacts

Metadata contact
Individual's name Chris Stermer
Organization's name California Department of Fish and Games, Resource Assessment Program
Contact's position Wildlife Biologist
Contact's role point of contact


Contact information
Phone
Voice 916-445-2626

Address
Type postal
Delivery point 1812 Ninth Street
City Sacramento
Administrative area CA
Postal code 95814
Country US
e-mail address peregrines@prodigy.net



Thumbnail and Enclosures

Thumbnail

Enclosure
Enclosure type File
Description of enclosure original metadata
Original metadata document, which was translated yes
Source metadata format fgdc