PERMFILE106665

• Permit No: M2004047
• IBM Index Class Name: Permit File
• Doc Date: 7/25/2004
• Doc Name: New 112c Appl
• From: Farfrumwurkin LLLP
• To: DMG
• Media Type: D
• Archive: No

6.4.10 Exhibit J -Vegetation Information
• 6.4.10.1 EXISTING VEGETATION TYPES
Vegetation in the study area is mostly crops, including wheat, alfalfa, irrigated
hay, and trees. About 13 acres is a wet pasture (See Exhibit C), which contains
several areas dominated by wetland vegetation, primarily Nebraska sedge
(Carex nebraskensis) and Baltic rush (Juncus balticus). However, hydrologic
conditions in the pasture during a May 7, 2004 site visit were not typical of
wetlands. Wetland conditions in the pasture are apparently supported by
irrigation. A 1.7-acre marsh is present on the west boundary of the proposed
permit area adjacent to the abandoned railroad bed (See Exhibit C). About 1.1
acres of this wetland are within the proposed permit area. Vegetation in the
marsh is dominated by cattails (Typha spp.), with limited amounts of teasel
(Dipsacus ful/onum) present around the wetland margins.
•
6.4.10.2 PRODUCTIVITY
Table 6 (below) presents the potential primary productivity within the permit area
based on native vegetation that occurs on the soil types present. Two soil types,
Olney fine sandy loam, 0 to 1 percent slopes and Vona sandy loam, 1 to 3
percent slopes, are almost always used for irrigated agriculture. Productivity of
native vegetation is not presented for these soil types (USDA Soil Conservation
Service, 1980). See Exhibit C for a map of soils within the permit area.
Table 6. Vegetative productivity (Source: USDA Soil Conservation Service,
Soil type Productivity in Favorable Productivity in
Years (Ibs/ac) Unfavorable Years
•
Aquolls and Aquepts,
flooded 4,000 3,000
Olney fine sandy loam, 0
to 1 percent slopes Not Available Not Available
Olney fine sandy loam, 1
to 3 percent slopes 2,200 1,800
Olney fine sandy loam, 3
to 5 percent slopes 2,200 1,800
Otero sandy loam, 3 to 5
percent slopes 2,200 1,800
Otero sandy loam, 5 to 9
percent slopes 2,200 1,800
Vona sandy loam, 1 to 3
percent slopes Not Available Not Available
Vona sandy loam, 3 to 5
percent slopes 2,200 1,800
Table 7 (on the following page) presents yield per acre for irrigated alfalfa under
a high level of management in 1975, for the soil types in the study area. Note
File Pit 112 DMG Permit Application
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