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Remote Sens. 2009, 1(4), 896-914; doi:10.3390/rs1040896
Article

Regional Assessment of Aspen Change and Spatial Variability on Decadal Time Scales

Received: 18 September 2009; in revised form: 20 October 2009 / Accepted: 5 November 2009 / Published: 10 November 2009
(This article belongs to the Special Issue Ecological Status and Change by Remote Sensing)
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Abstract: Quaking aspen (Populus tremuloides) is commonly believed to be declining throughout western North America. Using a historical vegetation map and Landsat TM5 imagery, this study detects changes in regional aspen cover over two different time periods of 85 and 18 years and examines aspen change patterns with biophysical variables in the Targhee National Forest of eastern Idaho, USA. A subpixel classification approach was successfully used to classify aspen. The results indicate greater spatial variability in regional aspen change patterns than indicated by local-scale studies. The observed spatial variability appears to be an inherent pattern in regional aspen dynamics, which interacts with biophysical variables, but persists over time.
Keywords: aspen abundance; change detection; Landsat TM; mixture tuned matched filtering; GIS aspen abundance; change detection; Landsat TM; mixture tuned matched filtering; GIS
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Sankey, T.T. Regional Assessment of Aspen Change and Spatial Variability on Decadal Time Scales. Remote Sens. 2009, 1, 896-914.

AMA Style

Sankey TT. Regional Assessment of Aspen Change and Spatial Variability on Decadal Time Scales. Remote Sensing. 2009; 1(4):896-914.

Chicago/Turabian Style

Sankey, Temuulen Tsagaan. 2009. "Regional Assessment of Aspen Change and Spatial Variability on Decadal Time Scales." Remote Sens. 1, no. 4: 896-914.


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