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

Authors

Temuulen Tsagaan Sankey

Document Type

Article

Journal/Book Title/Conference

Remote Sensing

Volume

1

Issue

4

First Page

896

Last Page

914

Publication Date

11-10-2009

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 License.

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.

Recommended Citation

Sankey, Temuulen Tsagaan. 2009. Regional assessment of aspen change and spatial variability on decadal time scales. Remote Sensing. 1(4): 896-914.