Effects of NRCS Conservation Practices - National

Wetland Creation Code: 658

Units: ac.

C F R P Pr W O AL

Soil Erosion Effect Rationale

Soil Erosion - Sheet and Rill Erosion 0

Soil Erosion - Wind Erosion 0

Soil Erosion - Ephemeral Gully Erosion 0

Soil Erosion - Classic Gully Erosion 0

Soil Erosion - Streambank, Shoreline, Water Conveyance C 0

Soil Quality Degradation

 Organic Matter Depletion 2

 Compaction 0

 Subsidence 0

 Concentration of Salts or Other Chemicals 0

Excess Water

 Excess Water - Seeps 0

 Excess Water - Runoff, Flooding, or Ponding 2

 Excess Water - Seasonal High Water Table -1

 Excess Water - Drifted Snow 0

Insufficient Water

 Insufficient Water - Inefficient Use of Irrigation Water 0

 Insufficient Water - Inefficient Moisture Management 0

Water Quality Degradation

 Pesticides in Surface Water 1

 Pesticides in Groundwater 1

 Nutrients in Surface water 3

 Nutrients in Groundwater 1

 Salts in Surface Water 1

 Salts in Groundwater 0

 Excess Pathogens and Chemicals from Manure, Bio-solid 1 

 Excess Pathogens and Chemicals from Manure, Bio-solid 0 

The action captures pesticide residues and facilitates their degradation.

The action captures pesticide residues and facilitates their degradation.

Wetland systems will utilize dissolved nutrients and trap sediment-attached nutrients and organics.

The action traps nutrients and organics which are broken down and used by wetland plants. 

Any salts in surface runoff will be detained in the wetland. Some wetland plants may take up salts.

Not Applicable

Pathogens are trapped in the wetland.

Not Applicable

Increases infiltration to subsurface water.

Not Applicable

Not Applicable

Not Applicable

Not Applicable

Not Applicable

Not Applicable

Not Applicable

Provides temporary flood storage reducing flooding and ponding.

The creation of a wetland on a site location that was historically non-wetland.

Water ponding promotes growth of wetland vegetation and reduces decomposition of soil organic matter.

Not Applicable

Not Applicable

Not Applicable

Not Applicable

Not Applicable

AL-Aso Land 

W-Water 

O-Other 

D-Developed 

FS-Farmstead 

Pr-Protected 

P-Pasture 

F-Forest 

R-Range 

C-Crop

Typical Landuse:
 Excessive Sediment in Surface Water 2

 Elevated Water Temperature 0

 Petroleum, Heavy Metals and Other Pollutants Transporte 2

 Petroleum, Heavy Metals and Other Pollutants Transporte 0

Air Quality Impacts

 Emissions of Particulate Matter (PM) and PM Precursors 0

 Emissions of Ozone Precursors 0

 Emissions of Greenhouse Gases (GHGs) 1

 Objectionable Odors -1

Degraded Plant Condition

 Undesirable Plant Productivity and Health 4

 Inadequate Structure and Composition 4

 Excessive Plant Pest Pressure 4

 Wildfire Hazard, Excessive Biomass Accumulation 0

Fish and Wildlife - Inadequate Habitat

 Inadequate Habitat - Food 5

 Inadequate Habitat - Cover/Shelter 5

 Inadequate Habitat - Water 0

 Inadequate Habitat - Habitat Continuity (Space) 4

Livestock Production Limitation

 Inadequate Feed and Forage 2

 Inadequate Shelter 0

 Inadequate Water 0

Inefficient Energy Use

 Equipment and Facilities 0

 Farming/Ranching Practices and Field Operations 0

CPPE Practice Effects: 0 No Effect

5 Substantial Improvement -1 Slight Worsening

4 Moderate to Substantial Improvement -2 Slight to Moderate Worsening

3 Moderate Improvement -3 Moderate Worsening

2 Slight to Moderate Improvement -4 Moderate to Substantial Worsening

1 Slight Improvement -5 Substantial Worsening

Not Applicable

Not Applicable

Not Applicable

Areas for cover/shelter are created.

Created wetlands will benefit some species, but their creation can alter hydrology of the area.

Additional wetland space is created.

These sites may be used as feed and forage by livestock if the intended purpose is maintained.

Not Applicable

Areas for food are created.

Not Applicable

Not Applicable

The accumulation of organic matter and sediments sequester carbon. However, anaerobic conditions can promote the generation of 

methane.

Anaerobic conditions can promote the generation of hydrogen sulfide and other odorous compounds.

Plants are selected and managed to maintain optimal productivity and health for their intended use.

Plants selected are adapted and suited. 

Vegetation is installed and managed to control undesired species. 

Not Applicable

Not Applicable

System traps sediment.

Improved hydrological conditions are likely.

Vegetation and anaerobic conditions trap heavy metals.