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Lodi Alluvium

Ecoregion in Central Valley, CA

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The small Lodi Alluvium ecoregion is on nearly level to very gently sloping floodplains and alluvial fans of the Mokelumne and Calaveras Rivers and smaller streams between the Delta (7j) and the Northern Terraces (7a) along the eastern edge of the Central California Valley. Elevations range from about 20 to 100 feet. Nearly the entire ecoregion is in cropland, with some urban land around Lodi. Grapes are dominant in the northern part, whereas walnuts are typical in the south. The soil temperature regime is thermic and soil moisture regimes are xeric and aquic. The natural vegetation historically included perennial and annual grasslands, valley oak savannas, cottonwoods, and willows. Streams drain to the west to the Delta area or to the Stockton Basin (7l).

— EPA

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Ecoregion