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Exploratory Tree Survey (2016 - Eel River Critical Zone Observatory - Sagehorn - Central Belt Melange, Franciscan Complex, Northern California Coast Ranges, USA)


Authors: W. Jesse Hahm David N Dralle Sky M Lovill Jennifer Rose Todd Dawson William E Dietrich
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Resource type: Composite Resource
Storage: The size of this resource is 38.3 MB
Created: Sep 18, 2017 at 3:18 p.m.
Last updated: Oct 03, 2017 at 12:09 a.m.
DOI: 10.4211/hs.7881821a5c0e4ae3822b96a59f4bf8b6
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Content types: Single File Content 
Sharing Status: Published
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Abstract

We surveyed more than 2,800 individual trees over an approximately 10 hectare area May 2-5, 2016 at the Eel River Critical Zone Observatory Sagehorn site in Mendocino County, California, USA. Trees species, size (height for juvenile and diameter for mature individuals), canopy position (for mature individuals), and location (meter-scale resolution GPS) were recorded. The survey area is a small portion of a 5,000 acre private cattle ranch that experienced a large fire in 1950 and some logging of Douglas fir in the first half of the twentieth century. The hilly landscape is part of the Central Belt Melange of the Franciscan Formation complex, and surveyed areas were underlain by sheared clay-rich melange matrix (dominant vegetation: annual herbaceous groundcover and Quercus garryana (Oregon White Oak)), as well as poorly sorted, immature sandstone blocks (greywacke; dominant vegetation: Arctostaphylos spp (Manzanita - not surveyed), Pseudotsuga menziesii (Douglas Fir) and Arbutus menziesii (Pacific Madrone)). Trees with diameters at breast height (1.4 m; DBH) greater than 5 cm (n = 313) were tagged for future surveys.

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Resource Level Coverage

Spatial

Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
Longitude
-123.4716°
Latitude
39.5684°

Content

Credits

Funding Agencies

This resource was created using funding from the following sources:
Agency Name Award Title Award Number
National Science Foundation The Eel River Critical Zone Observatory: exploring how the critical zone will mediate watershed currencies and ecosystem response in a changing environment 1331940
University of California Natural Reserve System Mildred E. Mathias Graduate Student Research Grant

How to Cite

Hahm, W. J., D. N. Dralle, S. M. Lovill, J. Rose, T. Dawson, W. E. Dietrich (2017). Exploratory Tree Survey (2016 - Eel River Critical Zone Observatory - Sagehorn - Central Belt Melange, Franciscan Complex, Northern California Coast Ranges, USA), HydroShare, https://doi.org/10.4211/hs.7881821a5c0e4ae3822b96a59f4bf8b6

This resource is shared under the Creative Commons Attribution CC BY.

 http://creativecommons.org/licenses/by/4.0/
CC-BY

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