Area	North Fork
Topic	USFS Tree Size Classes: Stewarts Creek CalWater 1994

 

Caption:  This bar chart shows vegetation and timber types of the Stewart Creek Calwater planning watershed, which is very similar to the Doty and Robinson Creek Calwaters in its characteristics. The U.S. Forest Service derived the information from a 1994 Landsat image. This analysis technique calculates averages of vegetation stands at a one-hectare scale. Scroll down for a key to classifications. The Stewart Creek Calwater had a high amount of Medium-Large Trees (20-29.9") with just under half the watershed in mid-seral conditions. Very Large Trees (>40 " diameter) are non-existent and Large Trees (30-39.9") and Non-Forest are each 1%. A total of 30% of the watershed is in trees less than 12 inches diameter, which suggests recent timber harvest prior to 1994. Click on Picture to see an ArcView scene of the Stewart Creek Calwater planning watershed showing vegetation types. Vegetation classifications are: Very Large Trees = >40" in diameter Large Trees = Trees 30-39.9" in diameter Medium/Large Trees = 20-29.9" in diameter Small/Medium Trees = 12-19.9" diameter Small Trees = 5-11.9" in diameter Saplings = Trees less than 5" Non-Forest = No trees, shrubs, grass, bare soil

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