File Geodatabase Feature Class
Tags
floristic classification, abundance, trend, vegetation, distribution, special status species, California, management, monitoring, Suisun Marsh, plant, San Francisco Bay Delta, environment, inlandWaters, habitat attributes, biota, census, planning, Solano County, inventory
The Suisun Marsh is one of the largest contiguous brackish marshes remaining in the United States covering over 69,000 acres of tidal and seasonally managed wetland. In 1977 the Suisun Preservation Act was legislated and required that the Suisun Marsh be managed for its wildlife resources. As part of the monitoring program in the Plan of Protection, a Triennial Vegetation Survey was developed to document the overall vegetation composition of the marsh and to monitor Salt Marsh Harvest Marsh (SMHM) habitat by the use of aerial photography in combination with ground verification. However, there were some concerns about the methodology used and the lack of useful maps from the 1988, 1991, and 1994 surveys. In 1996, an interagency technical committee was convened to review the current survey methodology and recommended a more detailed monitoring system for vegetation changes within the marsh. Consequently, in July 1997 the committee agreed to implement a new survey methodology for the 1998 vegetation survey (reported herein).
As part of the monitoring program in the Plan of Protection, a Triennial Vegetation Survey was developed to document the overall vegetation composition of the Suisun Marsh and to monitor Salt Marsh Harvest Marsh (SMHM) habitat by the use of aerial photography in combination with ground verification. The vegetation map adheres to the 1998 National Vegetation Classification Standard (NVCS) and the 1995 Manual of California Vegetation (MCV).
The mapping study area consists of approximately 69,323 acres of Solano county. The map consists of 39,460 vegetation polygons. SPOT satellite imagery acquired June, 1999 was utilized as a base for the delineated polygons and photo interpretation signature in the focus study areas. This vegetation mapping project of Suisun Marsh blends ground-based classification, aerial photo interpretation, and GIS editing and processing. The method is based on the development of a quantitative vegetation classification, which is used to describe the vegetation map units of the marsh. The minimum mapping unit (MMU) for this project was 0.5 acre. Delineation was done without attempting to classify the signatures; all visibly different signatures were delineated. A small number of the resulting polygons were below the general 0.5 acre minimum; these were drawn because they had distinctive photo signatures.
Accuracy Assessments (AA) were performed, beginning in September 2000. During this effort, team members utilized Global Position System (GPS) to locate delineated vegetation polygons and accuracy assessment forms were completed. A total of 271 vegetation polygons were visited during this effort.
The project report is available for download at: https://nrm.dfg.ca.gov/FileHandler.ashx?DocumentID=90000
This map was created by California Department of Fish and Wildlife's (CDFW) Vegetation Classification and Mapping Program (VegCAMP). It was prepared for publication in BIOS by the California Department of Fish and Wildlifes (CDFW) Vegetation Classification and Mapping Program (VegCAMP).
CDFWs VegCAMP appreciates learning how these vegetation datasets are being used so that we can leverage support for classifying and mapping new areas and let users know of any updates. Please contact us at VegCAMP@wildlife.ca.gov or call any of the staff listed here: https://wildlife.ca.gov/Data/VegCAMP .
License: This work is licensed under Creative Commons Attribution 4.0 International License ( https://creativecommons.org/licenses/by/4.0/ ). Using the citation standards recommended for BIOS datasets ( https://www.wildlife.ca.gov/Data/BIOS/Citing-BIOS ) satisfies the attribution requirements of this license.
Disclaimer: The State makes no claims, promises, or guarantees about the accuracy, completeness, reliability, or adequacy of these data and expressly disclaims liability for errors and omissions in these data. No warranty of any kind, implied, expressed, or statutory, including but not limited to the warranties of non-infringement of third party rights, title, merchantability, fitness for a particular purpose, and freedom from computer virus, is given with respect to these data.
Study Area Boundary: The study area covers approximately 69,323 acres of the Suisun Marsh.
Minimum Mapping Unit (MMU): The minimum mapping unit for this project was 0.5 acre. Delineation was done without attempting to classify the signatures; all visibly different signatures were delineated. A small number of the resulting polygons were below the general 0.5 acre minimum; these were drawn because they had distinctive photo signatures.
Extent
| West | -122.137460 | East | -121.849125 |
| North | 38.251313 | South | 38.038229 |
| Maximum (zoomed in) | 1:5,000 |
| Minimum (zoomed out) | 1:150,000,000 |
CDFWs VegCAMP appreciates learning how these vegetation datasets are being used so that we can leverage support for classifying and mapping new areas and let users know of any updates. Please contact us at VegCAMP@wildlife.ca.gov or call any of the staff listed here: https://wildlife.ca.gov/Data/VegCAMP .
License: This work is licensed under Creative Commons Attribution 4.0 International License ( https://creativecommons.org/licenses/by/4.0/ ). Using the citation standards recommended for BIOS datasets ( https://www.wildlife.ca.gov/Data/BIOS/Citing-BIOS ) satisfies the attribution requirements of this license.
Disclaimer: The State makes no claims, promises, or guarantees about the accuracy, completeness, reliability, or adequacy of these data and expressly disclaims liability for errors and omissions in these data. No warranty of any kind, implied, expressed, or statutory, including but not limited to the warranties of non-infringement of third party rights, title, merchantability, fitness for a particular purpose, and freedom from computer virus, is given with respect to these data.
Study Area Boundary: The study area covers approximately 69,323 acres of the Suisun Marsh.
Minimum Mapping Unit (MMU): The minimum mapping unit for this project was 0.5 acre. Delineation was done without attempting to classify the signatures; all visibly different signatures were delineated. A small number of the resulting polygons were below the general 0.5 acre minimum; these were drawn because they had distinctive photo signatures.
CDFWs VegCAMP appreciates learning how these vegetation datasets are being used so that we can leverage support for classifying and mapping new areas and let users know of any updates. Please contact us at VegCAMP@wildlife.ca.gov or call any of the staff listed here: https://wildlife.ca.gov/Data/VegCAMP
License: This work is licensed under Creative Commons Attribution 4.0 International License ( https://creativecommons.org/licenses/by/4.0/ ). Using the citation standards recommended for BIOS datasets ( https://www.wildlife.ca.gov/Data/BIOS/Citing-BIOS ) satisfies the attribution requirements of this license.
Disclaimer: The State makes no claims, promises, or guarantees about the accuracy, completeness, reliability, or adequacy of these data and expressly disclaims liability for errors and omissions in these data. No warranty of any kind, implied, expressed, or statutory, including but not limited to the warranties of non-infringement of third party rights, title, merchantability, fitness for a particular purpose, and freedom from computer virus, is given with respect to these data.