Area	Coastal Tributaries South
Topic	Land Cover: USFS Veg Size in Riparian for Point Arena Creek 1994

 

Caption:  This bar chart shows vegetation size classes in the riparian zone of the Point Arena Creek Calwater Planning Watershed. The riparian zone encompasses a distance of 90 meters (300 feet) on either side of the stream channel. This planning watershed had 46% of the riparian in medium-large and greater trees, 43% in small-medium and smaller trees and 11% in non-forest. Arena Creek, Ross Creek and Moat Creek cross the grassy coastal plain (see Map Tab), which explains in part the 11% of the riparian community in this Calwater. 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. Click on the Map tab to see 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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