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Landscape Change in the Napa River Watershed, 1800–2002: Implications for the Restoration of In-Stream, Floodplain, and Valley Floor Habitat Grossinger, R., Striplen, C., Brewster, E., San Francisco Estuary Institute and L. Collins , Watershed Sciences CALFED Science Conference January 16, 2003.

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Landscape Change in the Napa River Watershed, 1800–2002: Implications for the Restoration of In-Stream, Floodplain, and Valley Floor HabitatGrossinger, R., Striplen, C., Brewster, E., San Francisco Estuary Instituteand L. Collins, Watershed SciencesCALFED Science ConferenceJanuary 16, 2003


Project goals
Project Goals Implications for the Restoration of In-Stream, Floodplain, and Valley Floor Habitat

  • a map of the pre-European impact fluvial system

    • extent of floodplain

    • location of distributary systems, side channels, riparian habitat

       flood control, stream restoration, fisheries recovery

  • a map of the pre-European impact distribution and abundance of valley floor habitats

    • oak savanna

    • seasonal wetland/vernal pools

    • native grassland

       conservation planning (identifying remnants, proportional representation, designing corridors and mosaics)

  • land use history

    • spatial extent and duration of grazing, logging, ditching, etc.

       identify early uses which may have ongoing effects

  • community-participatory process

    acquire needed data

    greater shared understanding of how the current landscape has evolved and its potential for restoration


Presentation outline
Presentation Outline Implications for the Restoration of In-Stream, Floodplain, and Valley Floor Habitat

1. Approach

  • Partnerships

  • Issues of scale

    2. Methods

  • 19th-century Historical Documents

  • Early Aerial Photography

  • Mapping of Present-day Ecological Remnants

    3. Preliminary Findings — methodological and technical

  • Pleasures and Pitfalls of Historical Sources

  • Discovery of Counter-Intuitive Changes

  • Substantial Variation in Historical Landscape within a Small Area ( variation in present-day geomorphic controls)


Napa river watershed historical ecology project endorsed and or funded by
Napa River Watershed Historical Ecology Project endorsed Implications for the Restoration of In-Stream, Floodplain, and Valley Floor Habitatand/or funded by:

  • Napa Valley Vintners Association

  • Land Trust of Napa County

  • Mead Foundation

  • Mennen Environmental Foundation

  • Napa County Planning Department

  • Napa County Resource Conservation District

  • SF Bay Region Water Quality Control Board

  • California Department of Fish and Game

  • Army Corps of Engineers

  • CALFED Watershed Program


Napa river watershed historical ecology project collaborators
Napa River Watershed Historical Ecology Project Collaborators

Shari Gardner and Chris Malan, Friends of Napa River – local project coordinatorsElise Brewster, Brewster Design Arts – archival research, historical cartography Mike Champion, Napa RCD – archival researchSarah Pearce, SFEI – fluvial geomorphologyLaurel Collins, Watershed Sciences – fluvial geomorphologyChuck Striplen, SFEI and UCB – pre-European land managementJosh Collins, SFEI –wetlands geomorphologyLester McKee, SFEI –watershed processesJake Ruygt, Napa County Botanist – local plant community ecologyRobin Grossinger, SFEI – historical ecology/landscape historyThomas Burns, GIS Mapping and Analysis – historical photogrammetryEric Wittner, SFEI – GIS development


1. Approach Collaborators

  • Partnerships

  • Issues of scale

    2. Methods

  • 19th-century Historical Documents

  • Early Aerial Photography

  • Mapping of Present-day Ecological Remnants

    3. Preliminary Findings — methodological and technical

  • Pleasures and Pitfalls of Historical Sources

  • Discovery of Counter-Intuitive Changes

  • Substantial Variation in Historical Landscape within a Small Area ( variation in present-day geomorphic controls)



Napa River Watershed Collaborators

Sulphur

Soda

Soda

Carneros

San Francisco Bay


1. Approach Collaborators

  • Partnerships

  • Issues of scale

    2. Methods

  • 19th-century Historical Documents

  • Early Aerial Photography

  • Mapping of Present-day Ecological Remnants

    3. Preliminary Findings — methodological and technical

  • Pleasures and Pitfalls of Historical Sources

  • Discovery of Counter-Intuitive Changes

  • Substantial Variation in Historical Landscape within a Small Area ( variation in present-day geomorphic controls)


1. Approach Collaborators

  • Partnerships

  • Issues of scale

    2. Methods

  • 19th-century Historical Documents

  • Early Aerial Photography

  • Mapping of Present-day Ecological Remnants

    3. Preliminary Findings — methodological and technical

  • Pleasures and Pitfalls of Historical Sources

    • Importance of Pre-1940s Data

    • Potentials for Misinterpretation

  • Substantial Variation in Historical Landscape within a Small Area ( variation in present-day geomorphic controls)

  • Discovery of Counter-Intuitive Changes


USCS 1860 Collaborators

USCS 1861


Lower Sulphur Creek Collaborators

ca. 1940 Aerial photomosaic

1993 Aerial photomosaic


Products from napa river watershed landscape change studies
Products from Napa River Watershed Landscape Change Studies Collaborators

  • Historical Ecology Component of Napa Watershed Exhibit at the Napa Valley Museum -- opens January 25

  • Napa River Sediment TMDL Baseline Study: Geomorphic Processes and Habitat Form and Function in Soda Creek -- ~ 1 month

  • Stewardship Support and Watershed Assessment in the Napa River Watershed: A CALFED Project (Sulphur and Carneros Creeks) -- ~ 6 months

  • Napa Valley at the Time of European Contact GIS and Report -- ~ 1 year (pending funding)

www.sfei.org


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