Jaynes, Richard A. 



1978. A hydrologic model of aspen-conifer succession in the west- 

 ern United States. USDA For. Serv. Res. Pap. INT-213,17p. 

 Intermt. For. and Range Exp. Stn. , Ogden, Utah 84401. 



Hydrologic impacts of grass-forb to aspen to conifer succession in 

 the Rocky Mountain area are simulated by means of a fundamental model. 

 Model algorithms representing hydrologic processes are sensitive to 

 vegetational changes within the subalpine vegetation zone. Reductions in 

 water yield are predicted as the vegetation on a small Utah watershed 

 proceeds from a grass-forb type to aspen to conifers. Streamflow 

 changes are largely attributable to an interaction between seasonal con- 

 sumption for each vegetation type and the influence of vegetation type on 

 snowpack. 



KEYWORDS: ecosystem hydrology, succession, Populus tremuloides , 

 hydrology model. 



Jaynes, Richard A. 



1978. A hydrologic model of aspen-conifer succession in the west- 

 ern United States. USDA For. Serv. Res. Pap. INT-213, 17 p. 

 Intermt. For. and Range Exp. Stn., Ogden, Utah 84401. 



Hydrologic impacts of grass-forb to aspen to conifer succession in 

 the Rocky Mountain area are simulated by means of a fundamental model. 

 Model algorithms representing hydrologic processes are sensitive to 

 vegetational changes within the subalpine vegetation zone. Reductions in 

 water yield are predicted as the vegetation on a small Utah watershed 

 proceeds from a grass-forb type to aspen to conifers. Streamflow 

 changes are largely attributable to an interaction between seasonal con- 

 sumption for each vegetation type and the influence of vegetation type on 

 snowpack. 



KEYWORDS: ecosystem hydrology, succession, Populus tremuloides , 

 hydrology model. 



