Petersen Ranch: Working Waterway Habitat Enhancement Project
|Project Type||Non-mitigation||Location||38.25203° N, -121.73743° W Map|
|Project Area (Acres)||No Data||Last Updated||11 January 2022|
|Project Abstract||This working waterways habitat enhancement project will pair cattle management practices with ecosystem restoration practices to create 13.5 acres of riparian habitat on actively farmed and grazed ground in the northern part of the Petersen Ranch along Lindsey Slough.|
|Project Groups||SSJDC Prop 1|
|Administrative Region||Sacramento-San Joaquin Delta and Suisun Marsh (Prop 1) - Rachel Wigginton, SSJDC|
|Prop 1-1605||SSJDC - Prop 1 Grant ID|
|Site Name||Phase||Activity||SubActivities||Habitat||SubHabitat||Acres||Activity Status||Water Regime|
|Working waterways Restoration Plantings||None||Monitoring & Evaluation||Soils||Unknown/unspecified habitat||None||No Data||Implementation in-progress||Managed non-tidal|
|Habitat||Acres Lost||Type of Loss|
|2022-09-30||Project end date|
|2020-04-14||Monitoring end||Last CRAM date|
|2017-09-12||Monitoring start||First CRAM date|
|2017-09-01||Project start date|
|Agency Staff||Chris Carlson||Solano Resource Conservation District||Not applicable/Unknown|
|None||Monitoring & Evaluation||CDFW Prop 1 - Delta Water Quality and Ecosystem Restoration Grant Program||$444,464|
|Visit Date||Version||Site Name||Wetland Type||Index Score|
|2020-04-14||6.1||Petersen Site 9 Post-Restoration||riverine non-confined||70|
|2020-04-14||6.1||Petersen Site 3 Post-Restoration||riverine non-confined||63|
|2020-04-14||6.1||Petersen Site 6 Post-Restoration||riverine non-confined||62|
|2020-04-14||6.1||Petersen Site 5 Post-Restoration||riverine non-confined||61|
|2018-05-29||6.1||Petersen Site 6 Pre-Restoration||riverine non-confined||65|
|2018-05-29||6.1||Petersen Site 5 Pre-Restoration||riverine non-confined||60|
|2017-11-08||6.1||Petersen Site 9 Pre-Restoration||riverine non-confined||63|
|2017-09-12||6.1||Petersen Site 3 Pre-Restoration||riverine non-confined||59|
|Criteria not evaluated yet||Vegetative Cover will be assessed by randomly tossed quadrats at pre-determined intervals along the 4 planted areas to be evaluated. These data will then be averaged to give a total % cover, weed % cover and native % cover for the project. Water quality will be assessed during irrigation events by taking in situ measurements of water temperature, dissolved oxygen (DO), turbidity and electrical conductivity (EC) with a hand-held sonde probe. While improvement in these measurements may be overwhelmed by influence from the greater watershed, it is anticipated that the establishment of buffer strips and removal of cattle from the waterways will show brief improvements in water quality at the project sites compared to baseline conditions. Riparian ecological condition will be assessed before project initiation and again at its conclusion by conducting CA Rapid Assessment Method (CRAM) surveys at the 4 sub-project sites.||2020-10-01|
|Name||File Type||Submitted On||Submitted By|
|Monitoring report||Monitoring Report||2021-01-27||Andrea Mummert, Solano Resource Conservation District|
|Photomonitoring||Photo||2022-01-11||Andrea Mummert, Solano Resource Conservation District|
How to Use the Habitat Development Curve
Habitat Development Curves (HDCs) are used to determine the developmental status and trajectory of on-the-ground projects to create, restore, or enhance California wetland and stream habitats. Each HDC is based on assessments of habitat condition for different age areas of one habitat type that in aggregate represent the full spectrum of habitat development. The assessments of condition are provided by expert applications of the California Rapid Assessment Method (CRAM). Visit the CRAM website for more information about CRAM.
For each HDC, reference condition is represented by areas of a habitat that consistently get very high CRAM scores, have not been subject to disruptive management practices, and exist within landscapes that are protected and managed for their natural conditions. The horizontal lines intersecting the top of an HDC represent the mean CRAM score and standard deviation of scores for 25 qualifying reference areas.
The age of a project is estimated as the elapsed time in years between the groundwork end date for the project and the date of the CRAM assessment. To add or update a groundwork end date, use the Project Events form in Project Tracker (ptrack.ecoatlas.org). The minimum age in years of a non-project area, including any natural reference area, is estimated from all available local information, including historical maps and imagery, historical written accounts, and place-specific scientific studies of habitat development.
An HDC can be used to address the following questions:
- At what time in the future will the area of assessed habitat achieve the reference condition or other milestones in habitat development? The HDC can answer this question if the CRAM score for the assessed area is within the confidence interval of the HDC. The answer is the time in years along the HDC between the current age of the assessed area and the future date corresponding to the intersection of the HDC and the reference condition or other milestone.
- Is the area of assessed habitat likely to develop faster, slower, or at the same pace as most other areas of the same habitat type? The habitat area is likely to develop faster, slower, or at the same pace if the CRAM score for the area is above, below, or within the confidence interval of the HDC, respectively.
- What can be done to improve the condition of the habitat area or to increase its rate of development? HDCs by themselves cannot answer this question. Possible answers can be inferred by the following analysis that involves HDCs:
- Examine the HDC for each of the four CRAM Attributes;
- Identify the Attribute(s) scoring below the HDC;
- For any low-scoring Attribute, examine the component Metric Scores (note: the Metric Scores for any public CRAM assessment in the CRAM database can be obtained through EcoAtlas);
- Assume the low score of an Attribute is due to its low-scoring Metric(s);
- Consider modifying the design or management of the habitat area in ways that will sustainably increase its score(s) for the low-scoring Metric(s).
For more information about CRAM Attributes and Metrics, including their scientific rationale, see the CRAM Manual.