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3349740 
Book/Book Chapter 
Vernal pool-soil-landform relationships in the Central Valley, California 
Smith, DW; Verrill, WL 
1998 
California Native Plant Society 
Sacramento, CA. 
Ecology, Conservation, and Management of Vernal Pool Ecosystems—Proceedings from a 1996 Conference 
15-23 
It is hypothesized and a conclusion is reached, based upon an analysis of present-day mapping of vernal pools, soils, and geomorphology, that the occurrence of vernal pools within the Central Valley can be correlated with specific types of soils, geologic formations, and landforms. A hierarchical framework is proposed that can be used to identify and classify present-day vernal pool landscapes. The present-day relationships between vernal pools, soils, geologic formations, and landforms occur in predictable patterns across the landscape and can, therefore, be projected into the past. The hierarchical framework thereby provides a screening tool to locate potential historic vernal pool areas and help site restoration and mitigation areas. This is especially significant for the identification of historical vernal pool landscapes – which as a result of land use and management techniques such as land leveling, drainage, and/or deep ripping – no longer support vernal pools. Correlation of vernal pool landscapes with soils, geologic formations, and landforms may also provide a methodol-ogy for identification of characteristic hydrologic features, correlation with special-status species distribution, assessment of geodiversity and biodiversity, determination of suitability for restoration, and development of appropriate mitigation techniques, and construction density. This approach facilitates optimal regional land-use planning, establishment of pre-serves, and siting of mitigation banks. 
Ornduff, R. 
9780943460376