Area	Signal Creek
Topic	Land Cover: USFS Veg Size for Signal Creek 1994

 

Caption:  This bar chart shows vegetation size classes in the Signal Creek Calwater Planning Watershed. This planning watershed had 43% of vegetation in medium-large and greater trees, 25% in small-medium (12-20 inch diameter) and 31% small trees (5-11.9 inches), saplings (<5 inches) and non-forest combined. This high component of very small trees is related to recent timber harvests and a fire with subsequent salvage logging. The information was derived from a 1994 Landsat image by the U.S. Forest Service. This analysis technique calculates averages of vegetation stands at a one-hectare scale, and therefore is accurate at the stand rather than individual tree level. Click on InfoLinks for more information. Vegetation is classified according to diameter at breast height (DBH): Very Large = 40-50" DBH, Large = 30-39.9" DBH, Medium/Large = 20-29.9" DBH, Small/Medium = 12-19.9" DBH, Small = 5-11.9" DBH, Saplings = 1-4.9" DBH, Non-Forest = No trees, shrubs, grass, bare soil.

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To download the table with the chart's source data, click veg_usfs_garcia_source.dbf (size 2,609 bytes)
 
 

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