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					Tamarisk in Southeastern CO
       Colorado State Forest Service
             La Junta District
  Serving the Counties of Baca, Bent, Cheyenne,
       Crowley, Kiowa, Otero, Prowers and
               Eastern Las Animas

         Shelly L. Van Landingham
         Assistant District Forester
         slvanl@lamar.colostate.edu
                 719.384.9087
Current Projects


Pueblo
         Fowler    Rocky Ford
                                                               Lamar
                                  Las Animas
                                                   John
                                                   Martin
                           La Junta                Reservoir




                                               Marked locations not exact
     Current Projects                        La Junta/Rocky Ford Area
                                             Arkansas River Watershed

                                                  Colorado State Forest Service and
                                               West Otero Timpas Conservation District:
                                               National Fire Plan $’s for Fuels Reduction
                                               •La Junta area: Oxbow State Wildlife Area
                                               •La Junta/Rocky Ford: Private Land Owners


                                                   Colorado State Forest Service and
  Mechanical Removal with timber axe on
                                                        National Park Service:
private land adjacent to BOF and the Oxbow          National Fire Plan Firewise $’s
                                                 •National Park Service, Bent’s Old Fort
                                                   •La Junta area: Private Landowners
  Current Projects                         La Junta/Rocky Ford Area
                                           Arkansas River Watershed


                                              Natural Resources Conservation Service,
                                                       National Farm Bill $’s
                                                  (proposal submitted by CDOW)
                                             •WHIP (wildlife habitat incentives program)
                                             Crowley, Otero, Bent, and Prowers Counties:
                                                        Private Land Owners


  Mechanical Removal with timber axe
along Arkansas River on private property
        1 mile north of La Junta.
Current Projects                    La Junta/Rocky Ford Area
                                    Arkansas River Watershed
                                                   Colorado Division of Wildlife
                                                     •La Junta area: Oxbow State
                                                            Wildlife Area
                                                    •Rocky Ford area: Bird Farm,
                                                        Melon Valley SWA
                                                      •Lamar area: Granada SWA
                                                           •Pueblo Reservoir
Cut-stump crew at work at Oxbow:
    sawyer, sprayer, swamper




                                   Prior brush hog grinding on small diameter
                                            tamarisk at Oxbow SWA.
Current Projects                       Las Animas Area
                                 Arkansas River/Purgatoire River

                                      Bent County Tamarisk Working Group:
                                       Bent Co. Conservation District, Natural
                                      Resources Conservation Service, Bent Co.
                                        Commissioners, US Fish and Wildlife
                                           Service, Southeastern CO Water
                                        Conservancy District, Colorado State
                                       Forest Service, RC&D, other agencies
                                      •Hwy 50 underpass demonstration project
 Mechanical Removal with fecon
   and timber axe at Hwy 50            •WHIP and EQIP: Private Land Owners
  underpass near Las Animas

                                              US Corps of Engineers,
                                               Colorado State Parks
                                               •John Martin Reservoir
  Current Projects                   Hwy 350 to Picketwire Canyon
                                      Purgatoire River Watershed

                                               US Forest Service
                                           Comanche National Grassland
                                               •Picketwire Canyonlands


                                             US Department of Defense
                                            Pinon Canyon Maneuver Site
Tamarisk plants lining the edge of
      the Purgatoire River                  •Tributaries to Purgatoire River
Current Projects             Trinidad State Lake to Las Animas
                                 Purgatoire River Watershed
                                  Tackling Tamarisk on the Purgatoire Group:
                                  The Nature Conservancy, Colorado State Forest
                                     Service, Natural Resources Conservation
                                    Service, Branson-Trinchera/Spanish Peaks-
                                     Purgatoire River Conservation Districts,
                                       Tamarisk Coalition, Colorado Water
                                   Conservation Board, US Dept. of Defense, US
                                      Geological Survey, US Forest Service,
       US Forest Service,
    Picketwire Canyonlands
                                    Southeastern Colorado Water Conservancy
                                   District, Purgatoire River Water Conservancy
                                   District, Colorado Division of Wildlife, other
                                         agencies and private landowners

                                  •Currently working on mapping tamarisk in the
                                              Purgatoire Watershed.
                                                                                       Las Animas
                                                                                         %
                                                                                             John Martin
                                                                                             Reservoir




                                                  Pinyon Canyon
                                                  Military Reservation




                           Trinidad


               Trinidad
                 Lake




                Legend

Colorado
                          Project Boundary
                          Forested
                          Non-Vegetated
                                             Croplands
                                             Grasslands
                                             Water
                                                                         :           Miles
           ±              Shrublands                        0            10   20   40
     Riparian Forest
      Management                            Unnatural Fuel Loading

                                                •Tamarisk is a fantastic ladder fuel. It
                                                 burns hot and fast, and easily carries
                                                        fire through the forest.
                                                  •Tamarisk increases frequency and
                                                intensity of fires. Since it is non-native,
                                                this creates an unnatural fire regime in
                                                          our riparian forests.
Photos courtesy of BASF, Mike Carrigan

Treating tamarisk with fire at the Bosque
   del Apache Wildlife Refuge in NM




                                                One season’s growth after fire—no chemical tx
      Riparian Forest
       Management                            Replaces Native Vegetation


                                                           •Tamarisk increases soil
                                                         salinity, choking out native
                                                                   vegetation.
                                                            •Tamarisk uses massive
                                                        amounts of water, at the stand
                                                         level, further out-competing
                                                                   the natives.



Tamarisk adjacent to Arkansas River north of La Junta
      Riparian Forest
       Management                                Decreases Water Quality



                                                      •Tamarisk roots hold sediment,
                                                         density increases, stream
                                                        channel narrows, sediment
                                                              levels increase.




Tamarisk along Arkansas River east of La Junta
      Riparian Forest
       Management                            Decreases Wildlife Habitat



                                                     •Tamarisk provides little, if
                                                        any, wildlife habitat.




Tamarisk along Arkansas River east of La Junta
         Agriculture
                                                “Steals” Precious Water

                                                            •Tamarisk forms
                                                        impenetrable barriers for
                                                          livestock movement.
                                                          •It is estimated that one
                                                        mature tamarisk plant uses
                                                          up to 200 gallons a day
                                                       during the growing season—
                                                        less water for agricultural
                                                       producers, especially critical
                                                           in SE CO’s semi-arid
King Arroyo south of La Junta , choked with tamarisk
                                                                    climate.
Before Oxbow State Wildlife Area, La Junta
After Oxbow State Wildlife Area, La Junta

				
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