Vineyards are composed of single species planted in rows, usually supported on wood and wire trellises. Rows under the vines are usually sprayed with herbicides to prevent growth of herbaceous plants. Between rows of vines, grasses and other herbaceous plants may be planted or allowed to grow as a cover crop to control erosion. The vast majority of vineyards grow grapes. Other vineyard crops include boysenberries, olallieberries, raspberries, and kiwifruit.
DISTRIBUTION:
Vineyards can be found on flat alluvial soils in valley floors, in rolling foothill areas, or on relatively steep slopes. All are irrigated, usually with sprinklers or drip irrigation, although some may be flood irrigated. This type is most widespread in the Great Central Valley and to a lesser extent in coastal plains and valleys.
Source: Adapted by the California Gap Analysis Project from the California Wildlife Habitat Relationships system (Schultze, 1994).