Area	Coastal Tributaries North
Topic	Land Cover: USFS Veg Size in Riparian for North Fork Alder Creek 1994

 

Caption:  This bar chart shows vegetation size classes in the riparian zone of the North Fork Alder Creek Calwater Planning Watershed. The riparian zone encompasses a distance of 90 meters (292.5 feet) on either side of the stream channel. This planning watershed had 47% of the riparian in medium-large and greater trees, 50% in small-medium and smaller trees and 3% in non-forest. Small diameter trees in the riparian zone is partly a result of grasslands in the eastern part of the watershed. 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. See the Map tab for spatial data. 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, Non-Forest = No trees, shrubs, grass, bare soil.

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To view the table with the chart's source data, click Source Table web page.
To download the table with the chart's source data, click veg_usfs_rip_garcia_source.dbf (size 2,647 bytes)
 
 

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