| Area | Petaluma River |
| Topic | Land Cover: USFS Veg Size, Petaluma Creek Sub-basin 1999 |
| Caption: This chart shows vegetation coverage by size classes in the Petaluma Creek sub-basin, derived from a 1999 Landsat image by the U.S. Forest Service. Forested areas are sparse. Lower San Antonio and Basalt creeks contain the greatest forest cover. Forest cover also exist in Adobe and Lynch creeks. The forested areas mainly contain medium trees with few medium large and small trees. The vegetation classification is accurate at a one-hectare scale and is suitable for stand classification. Click on Map to see spatial data. Vegetation is classified according to diameter at breast height (DBH): Giant > 50", Very Large = 40-50" DBH, Large = 30-39.9" DBH, Medium/Large = 20-29.9" DBH, Medium = 12-19.9" DBH, Small = 5-11.9" DBH, Saplings = 1-4.9" DBH, Non-Forest = No trees, shrubs, grass, bare soil. Click on Info Links for more information. | |
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