Vegetation Cover - Spears and Didion Ranches [ds319]

SDE Feature Class

Open this dataset in BIOS
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Tags
Didion Ranch, Coon Creek, vegetation layer, Sierra Nevada foothills, canopy, California, biota, proportional cover, vegetation cover percentage, Spears Ranch, Placer County, environment, Placer Legacy Program


Summary

These data are intended to represent baseline data for wildlife communities and habitat conditions in these parks. They can be used to assess and monitor the park's ecological viability and sustainability.

Description

These data are the summary statistics calculated for components of the herbaceous layers, and shrubs and trees from the three 0.05-ha circular plot habitat samples each taken in 2005 at the 15 sample points at Spears and Didion Ranches, Placer County, California. These values are based on point intersections of live vegetation with a sighting tube at 25 points on eight 12.6 m transects through the 0.05-ha plot. Readings were taken in the center of each habitat sampling plot and at 4 m, 8 m, and 12 m on each of the eight transects within the plot. The transects are at 45 degree increments with one transect to the north. The herb layer is vegetation < 0.5 m tall, the shrub layer is vegetation > 0.5-2.0 m tall, while the tree layer vegetation is > 2.0 m tall.

Credits

Use limitations

These data can be used without constraints.

Extent

West -121.208470 East -121.165699
North 38.975549 South 38.959000

Scale Range

ArcGIS Metadata

Topics and Keywords

Themes or categories of the resource environment, biota


* Content type Downloadable Data


Place keywords Didion Ranch, Coon Creek, Sierra Nevada foothills, California, Spears Ranch, Placer County

Theme keywords biota, environment

Thesaurus
Title ISO 19115 Topic Category




Theme keywords vegetation layer, canopy, proportional cover, vegetation cover percentage, Placer Legacy Program

Citation

* Title DS0319_20070823
Publication date 2007-07-18


Presentation formats * digital map


Citation Contacts

Responsible party
Organization's name Barrett A. Garrison, California Department of Fish and Game, North Central Region
Contact's role originator


Resource Details

Dataset languages English(UNITED STATES)


Status completed
Spatial representation type * vector


Supplemental information
For more information on how this sampling component fits into the sampling scheme used on the Spears and Didion Ranch Parks project, see the the following documents: Garrison, B.A. May 2004. "Sierra Nevada Foothill Vegetation-Habitat Study, Habitat Sampling Protocols." Resource Assessment Program, Central Sierra Region, Calif. Dept. of Fish and Game, Rancho Cordova, CA. 4pp. These reports can be accessed at https://nrmsecure.dfg.ca.gov/documents/ContextDocs.aspx?cat=BIOS&sub=ds316 . "Sierra Nevada Foothill Wildlife, Habitat Sampling Datasheet." Resource Assessment Program, Central Sierra Region, Calif. Dept. of Fish and Game, Rancho Cordova, CA. 3pp. including methods. These reports can be accessed at https://nrmsecure.dfg.ca.gov/documents/ContextDocs.aspx?cat=BIOS&sub=ds316 .
* Processing environment Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.1.1.3143


ArcGIS item properties
* Name DS0319_20070823
* Location Server=; :; Database=; User=; Version=
* Access protocol ArcSDE Connection

Extents

Extent
Description
ground condition
Temporal extent
Date and time 2005-01-01

Extent
Geographic extent
Bounding rectangle
Extent type Extent used for searching
* West longitude -121.208470
* East longitude -121.165699
* North latitude 38.975549
* South latitude 38.959000
* Extent contains the resource Yes

Extent in the item's coordinate system
* West longitude -13492865.155500
* East longitude -13488103.963800
* South latitude 4715800.364300
* North latitude 4718169.803700
* Extent contains the resource Yes

Resource Points of Contact

Point of contact
Individual's name Barrett A. Garrison
Organization's name California Department of Fish and Game, North Central Region
Contact's role point of contact


Contact information
Phone
Voice 916 358 2945

Address
e-mail address bgarrison@dfg.ca.gov



Resource Maintenance

Resource maintenance
Update frequency as needed


Resource Constraints

Legal constraints
Other constraints
Public use.
Constraints
Limitations of use
These data can be used without constraints.

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 DS0319_20070823
* Object type point
* Object count 41



ArcGIS Feature Class Properties
Feature class name DS0319_20070823
* Feature type Simple
* Geometry type Point
* Has topology FALSE
* Feature count 41
* Spatial index TRUE
* Linear referencing FALSE



Data Quality

Scope of quality information
Resource level dataset




Data quality report - Completeness omission
Measure description
All vegetation-habitat sampling occurred at 3-circular plots around each of the 15 sample points in the project area. During data compilation the coordinates of the centers of 4-plots (3-2, 11-3, 12-3, and 14-1) were lost and are not shown when this data layer is displayed. However, the attribute data for these points exist in the database and are available for analysis if the exact point is not required (Contact the Data Distributor). See the linked referenced protocols and data sheet in these metadata to evaluate the how the missing coordinates might affect any further analysis of these data




Data quality report - Quantitative attribute accuracy
Measure description
It is assumed that the locations of the survey points are accurate with regard to the actual locations on the ground where the surveys were done. It is assumed that the species, position in canopy, layer constituent, and counts to determine cover were accurately made. Also, the spatial accuracy of the 100-m count circle radius is presumably accurate to +- 5 m because boundaries were measured with laser rangefinders and marked in the field with flagging.




Geoprocessing history

Process
Date 2011-07-2108:50:20
Tool location C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Conversion Tools.tbx\FeatureClassToFeatureClass
Command issued
Include in lineage when exporting metadata No


Process
Date 2013-06-2114:42:54
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

Distribution format
* Name SDE Feature Class


Transfer options
Online source
Location ftp://ftp.dfg.ca.gov/BDB/GIS/BIOS/Public_Datasets/300_399/ds319.zip

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

Fields

Details for object DS0319_20070823
* Type Feature Class
* Row count 41


Field OBJECTID
* Alias OBJECTID
* Data type OID
* Width 4
* Precision 10
* Scale 0
* Field description
Internal feature number.
* Description source
ESRI
* Description of values
Sequential unique whole numbers that are automatically generated.




Field LATDD
* Alias LATDD
* Data type Double
* Width 8
* Precision 11
* Scale 7
Field description
Latitude in decimal degrees using NAD83.


Field LONDD
* Alias LONDD
* Data type Double
* Width 8
* Precision 12
* Scale 7
Field description
Longitude in decimal degrees using NAD83.


Field POINT_PLOT
* Alias POINT_PLOT
* Data type String
* Width 10
* Precision 0
* Scale 0
Field description
The sample point identification number followed by the vegetation plot identification number.


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.






Details for object SR 2005 veg cover all layers veg plotsB
* Type Table
* Row count 315


Field OID
* Alias OID
* Data type OID
* Width 4
* Precision 0
* Scale 0
* Field description
Internal feature number.
* Description source
ESRI
* Description of values
Sequential unique whole numbers that are automatically generated.




Field LAYER
* Alias LAYER
* Data type String
* Width 11
Field description
Vegetation layer where the sample was taken.
List of values
Value HERB
Description herb layer is vegetation < 0.5 m tall


Description shrub layer is vegetation > 0.5-2.0 m tall
Value SHRUB


Value TREE
Description tree layer is > 2.0 m tall




Field CANOPY
* Alias CANOPY
* Data type Number
* Width 11
Field description
Position in respective layer (e.g, herb, shrub, tree) of the vegetation component; shrubs and herbs always have overstory as the canopy layer.
List of values
Value UNDER
Description Understory trees are perpetually shaded and below the overstory trees


Value OVER
Description Overstory trees receive perpetual sunlight and are above the understory trees


Value MID
Description Midcanopy trees are partially shaded and are below the overstory trees and above the understory trees.




Field SPECIES
* Alias SPECIES
* Data type Number
* Width 12
Field description
Name of vegetation component intersecting view through the sighting tube. Full species have common names, while other are categorized. FORBS are herbaceous vegetation, and GRASS are usually graminoids.


Field SCI_NAME
* Alias SCI_NAME
* Data type String
* Width 10
Field description
Scientific name of plants.
Accuracy information
Accuracy Some plants are only classified to genus. They are identified by "sp." following the genus name.


Field VEG_HITS
* Alias VEG_HITS
* Data type Number
* Width 8
Field description
Total number of hits with sighting tube for a maximum of 25 readings taken from the 8 transects.


Field PROP_COVER
* Alias PROP_COVER
* Data type Number
* Width 16
* Number of decimals 2
Field description
The proportion of hits of the indicated species or vegetation componets divided by 25 (the total possible number of hits within the 0.05-ha plot.


Field POINT_PLOT
* Alias POINT_PLOT
* Data type Number
* Width 9
Field description
The sample point identification number followed by the vegetation plot identification number.




Overview Description
Entity and Attribute Overview
This data set contains information on what constitutes the canopy, and the canopy's location and amount of cover.




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 2014-03-0616:01:11
Last modified in ArcGIS for the item 2014-04-2810:05:03


Automatic updates
Have been performed Yes
Last update 2014-04-2810:05:03


Metadata Contacts

Metadata contact
Individual's name Gordon Gould
Organization's name Biogeographic Data Branch, California Department of Fish and Game
Contact's role point of contact


Contact information
Phone
Voice 916 445 5006

Address
Type postal
Delivery point 1416 Ninth St., 12th floor
City Sacramento
Administrative area California
Postal code 95814
e-mail address ggould@dfg.ca.gov



Thumbnail and Enclosures

Thumbnail

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