Skip to page content
USDA Forest Service
  
Treesearch

Research & Development Treesearch

 
Treesearch Home
About Treesearch
Contact Us
Research & Development
Forest Products Lab
International Institute of Tropical Forestry
Northern
Pacific Northwest
Pacific Southwest
Rocky Mountain
Southern
Help
 

GeoTreesearch


Science.gov - We Participate


USA.gov  Government Made Easy


Global Forest Information Service

US Forest Service
P.O. Box 96090
Washington, D.C.
20090-6090

(202) 205-8333

You are here: Home / Search / Publication Information
Bookmark and Share

Publication Information

(568 KB)

Title: Historical land-cover classification for conservation and management in Hawaiian subalpine drylands

Author: Kellner, James R.; Asner, Gregory P.; Cordell, Susan; Thaxton, Jarrod M.; Kinney, Kealoha M.; Kennedy-Bowdoin, Ty; Knapp, David E.; Questad, Erin F.; Ambagis, Stephen

Date: 2012

Source: Historical land-cover classification for conservation and management in Hawaiian subalpine drylands. Pacific Science 66(4): 457-466

Publication Series: Journal/Magazine Article (JRNL)

Description: We used aerial photography from 1954 and airborne LiDAR and imaging spectroscopy from 2008 to infer changes in extent and location of tallstature woody vegetation in 127 km2 of subalpine dry forest on the island of Hawaii (Pohakuloa Training Area), and to identify 25.8 km2 of intact woody vegetation for restoration and management. Total cover of woody vegetation was 54.7 km2 in 1954 and 58.6 km2 in 2008. Approximately 28.9 km2 underwent woody vegetation change (22.7%) between 1954 and 2008. Increases in woody vegetation cover occurred in 16.4 km2, and 12.5 km2 represented reduction of woody vegetation cover (12.9% and 9.8% of the 127 km2 study area, respectively). Our findings suggest that 3.9 km2 (3.0%) experienced a net increase in woody vegetation cover between 1954 and 2008. Spatial patterns suggest that fires may be the primary driver of reductions in woody vegetation cover. Increases could be due to regeneration of dry forest trees or measurement errors associated with historical imagery. Areas remaining in woody vegetation cover over the 53-yr study interval can be targeted for restoration and management. We discuss challenges to integrating historical photography with contemporary conservation and management in Hawai'i and the Pacific and we outline additional studies that would help to improve estimates. The methods and analysis are general and could be applied to other dryland ecosystems with complex volcanic substrates in Hawai'i and the Pacific.

Publication Notes:

  • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

XML: View XML

Citation:


Kellner, James R.; Asner, Gregory P.; Cordell, Susan; Thaxton, Jarrod M.; Kinney, Kealoha M.; Kennedy-Bowdoin, Ty; Knapp, David E.; Questad, Erin F.; Ambagis, Stephen. 2012. Historical land-cover classification for conservation and management in Hawaiian subalpine drylands. Pacific Science 66(4): 457-466.

 


 [ Get Acrobat ]  Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility

USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.