Ecological Archives A017-049-A3

Daniel M. Kashian, William H. Romme, and Claudia M. Regan. 2007. Reconciling divergent interpretations of quaking aspen decline on the northern Colorado Front Range. Ecological Applications 17:1296–1311.

Appendix C (Table C1). Regeneration response of quaking aspen ramets approximately 20 years following clearcutting in lodgepole pine forests of different ages in the Canyon Lakes District of the Arapaho-Roosevelt National Forest, Colorado. Clearcuts were each approximately 1 ha in extent on western aspects with percent slopes between 17 and 28.

Variable

South clearcut

Central clearcut

North clearcut

 

 

 

 

Approximate stand age when clearcut (years since last stand-replacing fire)

101

101/242

242

 

 

 

 

Large aspen (> 1 m) density (stems/ha )

4,900

10,600

11,850

 

 

 

 

Small aspen (< 1 m) density (stems/ha)

3,150

1,600

1,000

 

 

 

 

Total aspen (< 1 m) density (stems/ha)

8,050

12,200

12,850

 

 

 

 

Aspect (degrees)

278

274

263

 

 

 

 

Percent slope

28

17

25



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