Minimum Mapping Unit: Unknown for land ownership, but many polygons are smaller than 1 hectare. For management level, MMU for upland sites is generally 200 hectares (500 acres) and for wetland sites is 80 hectares (200 acres). However, where digital map boundaries were readily available, smaller sites were incorporated as well, but were labeled as a special management level.
Thematic Accuracy: Unknown.
Positional Accuracy:
Unknown, but the source ownership coverage was registered to the Public Land Survey coverage by the Teale Data Center. Managed area boundaries were compiled from a variety of sources at different scales, projections, and quality of base materials. Transcribing boundaries to 1:100,000 scale maps for digitizing no doubt introduced errors into these polygons. Some sites were only available as thick outlines on small scale maps. Thus, some managed area boundaries will not be of as high a quality as the ownership information. Where a managed area and an original ownership polygon adjoined, the original arc was retained. The source of polygon data is encoded as an attribute to inform potential users of where positional accuracy may be suspect and where better boundaries should be incorporated when they become available.
Limitations/Warnings/Comments:
The coverage was developed with state and regional level analysis in mind. It does not include parcel level data and may not address the needs of users interested in small areas. During 1992, the ownership portion of the coverage will be extensively reviewed by federal, state, and county agencies. Updates will be accumulated and then incorporated into the coverage at one time by Teale Data Center.
UCSB Data Dictionary
4 Draft 01/18/96
Some managed areas are nested within others. Because only one code is permitted per polygon, the one with the highest level of protection is encoded. This means that it may not be straightforward to extract or reselect all areas of a particular category. For instance, some Forest Service Research Natural Areas (RNA) are within Wilderness Areas. To extract all wilderness from the database, a user would have to select them plus specific RNA's, condor sanctuaries, etc.
Management level is generally assigned to a type of managed area, that is, all state parks are assigned to one level unless there is a clear reason to change. It is likely that some managed areas are categorized too high (e.g., a state park that is heavily developed but is assigned to Level 1) or too low (e.g., an undeveloped regional park that is managed as a wilderness area but is labeled as Level 2). Level assignments will be modified in the future where compelling evidence is given, such as by the managing agency, that a change is warranted.
Local Coverage Expert: _David Stoms
____________________________________________________________________________
B. DATA HISTORY
Source Data:
Automation Scale: 1:100,000
Development Methods:
Overview: The ownership data were originally digitized by the Forest and Rangeland Resources Assessment Program of the California Department of Forestry and Fire Protection. It was then registered to the Public Land Survey coverage at Teale Data Center so that coincident linework was common. Land owner information was included as an attribute.
UCSB Data Dictionary
5 Draft 01/18/96
Managed areas were incorporated into this base coverage at UCSB. Some boundaries were merged from existing digital coverages (see Source Data above). Others were transcribed from paper maps onto USGS 1:100,000 scale topographic maps and digitized. Attributes were added for the source of data, management level, and a 10 character Heritage Program id-code for managed areas."
Beardsley, K. and D. M. Stoms, 1993. Compiling a digital map of areas managed for biodiver sity in California. Natural Areas Journal, 13: 177-190.
Davis, F. W., P. A. Stine, D. M. Stoms, M. I. Borchert, and A. D. Hollander, 1995. Gap analysis of the actual vegetation of California: 1. The Southwestern Region. Madron~o, 42: 40-78."
1 TEALE OWNERSHIP COVERAGE - BLM SURFACE MANAGEMENT SERIES
2 SANTA MONICA MTS NRA COVERAGE
3 DIGITIZED UCSB GEOGRAPHY
4 CA HERITAGE DIVISION--DFG SITES
5 CA HERITAGE DIVISION--TNC SITES
6 BLM RIVERSIDE DISTRICT--ACECS
7 BUREAU OF RECLAMATION SAN JOAQUIN VALLEY DRAINAGE PROGRAM
8 CA HERITAGE DIVISION--USFS RNA'S
9 SAN LUIS OBISPO COUNTY OPEN SPACE
10 BLM HOLLISTER AREA ACEC'S
11 BLM STATE OFFICE--DESERT CONSERVATION BILL
12 BLM Bakersfield District Office 13 BLM Ukiah District Office"
1 Management Level 1: An area with an active management plan in operation that is essentially maintained in its natural state and within which natural disturbance events are either allowed to proceed without
UCSB Data Dictionary
10 Draft 01/18/96
interference or are mimicked through management. (Fire is usually suppressed in most managed areas in California, however).
2 Management Level 2: Most non-designated public lands managed for multiple uses, including biodiversity. Legal mandates prevent permanent conversion to anthropogenic habitat types (with some exceptions, such as tree plantations) and confer protection to populations of Federally listed and/or candidate species.
3 Management Level 3: Other private lands without existing easement or irrevocable management agreement that maintains native species and natural communities and which is managed primarily or exclusively for intensive human activity, such as lands used for urban or agricultural purposes.
9 Management Level 9: Same definition as Level 1 except area is less than 200 hectares (500 acres) for upland sites and 80 hectares (200 acres) for wetland sites. Although their management goals may be the same as Level 1, their small size limits the likelihood of long-term protection.
The assignment of LEVEL to polygons was based on the following set of rules:
LEVEL 1: IF AREA >= 200 hectares (or 80 hectares for wetland areas) AND IF type of area = Forest Service Research Natural Area, Condor Sanctuary, Wilderness Area, Special Interest Area; National Wildlife Refuge; National Park, National Recreation Area, National Seashore, or National Monument; BLM Areas of Critical Environmental Concern; NOAA National Estuarine Research Reserve; California State Parks and Reserves, State Wilderness; California Fish and Game Ecological Reserves or Wildlife Areas; University of California Natural Reserves; TNC Preserves, Audubon Sanctuaries, and other private conservancies or land trusts.
LEVEL 2: IF type of area = other National Forest lands; other BLM lands; Military bases; Indian reservations; California Historic Parks, Vehicular Recreation Areas, State Recreation Areas, State Beaches (unless property includes large undeveloped area such as Leo Carrillo); State Forests and other state land; regional, county, and city parks or other lands; water district lands; conservation easements on privately owned lands
LEVEL 3: All other private lands, including inholdings within LEVEL 1 and 2 areas. LEVEL 9: IF AREA < 200 hectares (or 80 hectares for wetlands) AND type = same as level 1."
Note: although the Heritage Program uses a 14 character code, the last four characters represent the state and nation abbreviations, which for this coverage would always be CA and US respectively. If this coverage were to be mosaicked with other states, these codes should be appended."
FAFBA -Federal-Air Force Base
FARCE -Federal-Corps of Engineers Project
FARBA- Federal-Army Base
FARDP- Federal-Army Depot
FBIIR -Federal-Bureau of Indian Affairs Reservation
FBLAC- Federal-BLM Area of Critical Environmental Concern
FBLCA -Federal-BLM National Conservation Area FBLWA- Federal-BLM
Wilderness Area
FFSCS- Federal-Forest Service Condor Sanctuary FFSEF -Federal-Forest
Service Experimental Forest FFSNF- Federal-Forest Service National
Forest
FFSRN- Federal-Forest Service Research Natural Area FFSSI- Federal-Forest Service Special Interest Area FFSWA- Federal-Forest Service Wilderness Area FFWWR- Federal-Fish & Wildlife Service National Wildlife Refuge
FMCBA -Federal-Marine Corps Base
FNABA Federal-Navy Base
FNONA- Federal-NOAA Estuarine Research Reserve FNPNM- Federal-National
Park System National Monument
FNPNP- Federal-National Park System National Park FNPWA- Federal-National Park System Wilderness Area PASNP- Private-California Academy of Science Natural Preserve
PNAAS- Private-Audubon Society Sanctuary
PNCPR -Private-Nature Conservancy Preserve
PSUBP Stanford University Biological Preserve
PUNPR- Private-Preserves with other or unknown owners REBBE-
Regional-County-City Beach
REBOS- Regional-District Open Space
REBPA- Regional-County-City Park or Preserve
REBSH- Regional-County-City Shoreline
REBWI- Regional-County-City Wilderness
RMUWD- Regional-Municipal Utility District or Water District
SFGER- State-Fish & Game Ecological Preserve SFGWL State-Fish
& Game Wildlife Area
SPRHP- State-Parks and Recreation Historic Park SPRRA- State-Parks
and Recreation State Recreation Area
SPRSB- State-Parks and Recreation State Beach
SPRSP- State-Parks and Recreation State Park SPRSR State-Parks and Recreation State Reserve
SPRSW- State-Parks and Recreation State Wilderness SPRVR -State-Parks and Recreation State Vehicular Recreation Area
SUCNL- State-University of California National Laboratory
SUCNR- State-University of California Natural Reserve SUCUC -State-University of California Campus."