Network Effects Diagrams 315 by 79b9d9e9fc60e297

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									                                                                                                           January 2009

 HERBACEOUS WEED CONTROL
0B




 PRACTICE INTRODUCTION
1B




          USDA, Natural Resources Conservation Service―Practice Code 315




 HERBACEOUS WEED CONTROL
2B                                                                       Protect soils and control erosion
Herbaceous weed control is the eradication,                              Reduce fire hazard
reduction, or manipulation of herbaceous weed
                                                                Plans must include post-treatment measures as
species including invasive, noxious, and prohibited
                                                                4B




                                                                needed to achieve the management objective.
plants.
                                                                Environmental hazards and site-specific
                                                                application criteria listed on pesticide labels and in
 PRACTICE INFORMATION
3B



                                                                approved pest management references must be
Herbaceous weed control is designed to achieve                  followed when chemical control measures are
the desired plant community through the utilization             applied. Treatment methods should be applied in a
of Integrated Pest Management (IPM) principles.                 manner that minimizes the potential for smoke,
This is accomplished by mechanical, chemical,                   chemical drift, or other unintended impacts to air
biological, or a combination of these techniques.               resources.
Herbaceous weed control is applied to accomplish
one or more of the following:                                    COMMON ASSOCIATED PRACTICES
                                                                5B




                                                                Herbaceous Weed Control is commonly used in a
         Restore native or create desired plant
                                                                Conservation Management System with practices
          communities
                                                                such as Nutrient Management (590), Prescribed
         Manage noxious woody plants                           Grazing (528), Prescribed burning (338), Forest
         Enhance accessibility, quantity, and                  Stand Improvement (666), and Upland Wildlife
          quality of forage                                     Habitat Management (645).
         Maintain or enhance wildlife habitat                  For further information, refer to the practice
          including habitat for threatened and                  standard in the local Field Office Technical Guide
          endangered species                                    and associated job sheets and specifications.

The following page identifies the effects expected to occur when this practice is applied. These effects are subjective
and somewhat dependent on variables such as climate, terrain, soil, etc. All appropriate local, State, Tribal, and Federal
permits and approvals are the responsibility of the landowners and are presumed to have been obtained. Users are
cautioned that these effects are estimates that may or may not apply to a specific site.
                                                                         Herbaceous Weed Control                                               Initial setting: Existing range, forest,
         Herbaceous Weed                                                                                                                       pasture, hay, or wildlife land where                    Start
                                                                                  (315)                                                        reduction or removal of herbaceous
                  Control                                                                                                                      weeds, including invasive, noxious
                                  1/2009                                                                                                       and prohibited plants, is desired to
                                                                                                                                               meet a management objective
                                                                    1. Eradication or control of target herbaceous weeds
                                                                   using chemical, biological, and/or mechanical methods
                                                                        using Integrated Pest Management principles




                                                                                                                              Nutrient Management (590)
  D.1 (-)                                         D.3 (+) Native                D.4 (+) Desired plant                                                               D.5 (+) Cost of vegetation
  Wildfire                                       plant community                     production                                Prescribed grazing (528)                removal/control and
  hazard                        D.2 (+)                                                                                                                                   maintenance
                              Particulate
                            material in air;
                          I.2 (-) Particulate                I.4 (+) Wildlife
          I.1 (-)           material in air                 habitat (species                                   I.8 (+) Soil           I.10 (+) Domestic and
         Smoke                                                  specific)                I.5 (-) Soil            organic              wildlife forage quality,
                                                                                           erosion                matter                   quantity, and
                          (+)           (-)                                                                                                 accessibility
                                                                                                                                                                                              LEGEND
                                                         Early Successional
                                                                                                                                                                                          U




                   Prescribed
                  Burning (338)                         Habitat Development/                            I.9 (+) Soil
                                                         Management (647)                                  quality                                                                Mitigating practice or
                  Timing/method                                                                                                     I.11 (+)           I.13 (-)                           activity
                   of treatment                        Upland Wildlife Habitat                                                    Livestock             Feed
                                                        Management (645)                    I.6 (-)                               production            costs
                                                                                                                                                                                  Associated practice
                                                                                          Sediment
                                                                                          delivers to
                                                C.2 (+) Biodiversity                       surface                                                                              #. Created by practice
                                                                                           waters                                   I.12 (+)               I.14 (+/-)
                                                                                                                                   Potential               Net return           D. Direct effect
    I.3 (+) Air quality of airshed                 C.1 (+)                                                                          income
             (long term)                         Health and
                                                  safety for                     I.7 (+) Water quality                                                                          I. Indirect effect
                                                  humans,
                                                domestic and                                                                                                                    C. Cumulative effect
                                                wild animals

                                                                       C.3 (+) Aquatic and terrestrial wildlife habitat                                                                       Pathway
                                                                                     (target species)                                 C.4 (+/-) Income and income
                                                                                                                                        stability (individuals and             (+) increase; (-) decrease
                                                                                                                                               community)


     U   Note : Effects are qualified with a plus (+) or minus (-). These symbols indicate only an increase (+) or a decrease (-) in the effect upon the resource, not whether the effect is
              U




                                                                                       beneficial or adverse.

The diagram above identifies the effects expected to occur when this practice is applied according to NRCS practice standards and specifications. These effects
are subjective and somewhat dependent on variables such as climate, terrain, soil, etc. All appropriate local, State, Tribal, and Federal permits and approvals are
the responsibility of the landowners and are presumed to have been obtained. All income changes are partially dependent upon market fluctuations which are
independent of the conservation practices. Users are cautioned that these effects are estimates that may or may not apply to a specific site.

								
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