Saddle Mountain

Saddle Mountain Site

 

Location: Near Richland, WA
Land Management Agency: Bureau of Reclamation (fire, mow, tebuthiuron); US Fish and Wildlife Service Hanford Reach National Monument (control)
SageSTEP Site Manager: Scott Shaff
Plots: Four 80-acre core plots (Control, Burn, Mechanical, Herbicide)
Elevation: 860-940 ft
Topography: 1–5 % slope with a Southern aspect
Common Vegetation: Bluebunch wheatgrass, Wyoming big sagebrush, Indian ricegrass, and bottlebrush squirreltail
Soils: Warden, very fine sandy loam
Fire Regime: The Wyoming big sagebrush type is the driest of the sagebrush steppe communities and historically had a fire return interval of approximately 50-100 years The introduction of cheatgrass into the sagebrush grassland communities has increased fine fuels and reduced the fire return interval to less than 10 years.
Representative Land Base: This site is representative of sage steppe ecosystem of the Columbia Plateau of eastern Washington.
Grazing: This site is actively grazed and will be fenced for the duration of the study to exclude livestock.
Treatments Implemented: Fall 2008 by USFWS. For more information about treatments, click here.

Updated 2009

Saddle Mountain subplot progress images

Low Desert Sagebrush-Cheatgrass Control Subplots

Saddle Mountain Site Yearly Photo Sequence

All of the SageSTEP study sites have a control plot to account for variations that are not related to treatment, such as yearly climatic variation. Plateau pre-emergence herbicide was sprayed on half of the subplots on the control plot to control cheatgrass. The images below show two Saddle Mountain subplots from 2007–2010, one where Plateau was not used and one where Plateau was sprayed at a rate of 6oz per acre after treatment in fall 2006.

Standard Subplot

2007 – Pre-treatment

Plateau Subplot

2007 – Pre-treatment

2008 – 1 Year Post-treatment

2008 – 1 Year Post-treatment

2009 – 2 Years Post-treatment

2009 – 2 Years Post-treatment

2010 – 3 Years Post-treatment

2010 – 3 Years Post-treatment

Low Desert Sagebrush-Cheatgrass Prescribed Burn Subplots

Saddle Mountain Site Yearly Photo Sequence

Prescribed burns were implemented at all of the SateSTEP sagebrush-cheatgrass study sites to help land managers better understand the relationship between soil composition, vegetation communities, invasive species like cheatgrass and fires. The Saddle Mountain burn took place in the fall of 2008 after baseline data were collected. Plateau pre-emergence herbicide was crossed with the prescribed burn treatment on half of the subplots to control cheatgrass. The images below show two subplots from 2007–2010, one where Plateau was not used and one where Plateau was sprayed at a rate of 6oz per acre after treatment in fall 2008.

Standard Subplot

2007 – Pre-treatment

Plateau Subplot

2007 – Pre-treatment

2008 – 1 Year Post-treatment

2008 – 1 Year Post-treatment

2009 – 2 Years Post-treatment

2009 – 2 Years Post-treatment

2010 – 3 Years Post-treatment

2010 – 3 Years Post-treatment

Low Desert Sagebrush-Cheatgrass Mow Subplots

Saddle Mountain Site Yearly Photo Sequence

Prescribed burns were implemented at all of the SateSTEP sagebrush-cheatgrass study sites to help land managers better understand the relationship between soil composition, vegetation communities, invasive species like cheatgrass and fires. The Saddle Mountain burn took place in the fall of 2008 after baseline data were collected. Plateau pre-emergence herbicide was crossed with the prescribed burn treatment on half of the subplots to control cheatgrass. The images below show two subplots from 2007–2010, one where Plateau was not used and one where Plateau was sprayed at a rate of 6oz per acre after treatment in fall 2008.

Standard Subplot

2007 – Pre-treatment

Plateau Subplot

2007 – Pre-treatment

2008 – 1 Year Post-treatment

2008 – 1 Year Post-treatment

2009 – 2 Years Post-treatment

2009 – 2 Years Post-treatment

2010 – 3 Years Post-treatment

2010 – 3 Years Post-treatment

Contact

Jim McIver
SageSTEP Project Coordinator.
Oregon State University
Eastern Oregon Agriculture Research Center
PO Box E
Union, Oregon 97883
(541) 562-5396
james.mciver@oregonstate.edu

Lael Gilbert
SageSTEP Outreach Program Coordinator
Utah State University
Department of Environment & Society
5215 Old Main Hill
Logan, Utah 84322-5215
(435) 797-8455
lael.gilbert@usu.edu

© Sagebrush Steppe Treatment Evaluation Project (SageSTEP)
Site Designed by Kite Media