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Impact and Vulnerability
There have not been any regional or state-wide studies to estimate the dollar value of top soil
lost to soil erosion and dust. However, Table 3.144 shows the historical estimates for tons per
acres soil lost annually for cultivated cropland, non-cultivated cropland, conservation Reserve
Program (CRP) land and pastureland, for the State of Kansas.
Table 3.144. Kansas Average Wind Erosion in Tons/Acre/Year by Broad Cover/Use and
Year
Broad Cover/Use 1982 1987 1992 1997 2002 2007
Cultivated Cropland 2.747 2.963 2.062 1.482 1.463 1.734
Noncultivated
Cropland .907 .830 .887 .339 .413 .501
CRP Land n/a 10.478 .640 .328 .394 .860
Pastureland .009 .016 .022 .015 .019 .034
Source: 2007 National Resources Inventory, http://www.ks.nrcs.usda.gov/technical/ks_nri.html, dated April 22, 2010
Note: Estimated average annual wind erosion is tons per acre per year with margins of error.
The impact of this hazard on the Region would be difficult to detect to the time factor involved
before noticeable differences in loss of soil were apparent. Wind erosion can cause crop loss,
fertility loss, moisture loss and loss of valuable top soil. Blowing soil causes dirt clouds, drifting
sand and hard feelings between neighbors. Blowing soil cuts off growing crops, covers fences,
closes roads and gives rural and urban communities a bad perception of farmers.
Agricultural land, bridges, and roads are the most susceptible to soil erosion and dust. Flood
waters are the main culprit to these commodities, as the water erodes the soil by washing it out.
Dust is exacerbated during drought conditions and can cause havoc on agricultural fields and
can potential be a health hazard for individuals suffering from pulmonary disease.
Local Mitigation Concerns
• The main mitigation concern for this hazard, in the planning area, is the structural
integrity of the bridges and roads as soil erosion occurs. During periods of heavy rains,
soil erosion can wash the ground anchor away from the support structure causing them
to collapse. This, in turn, puts lives in danger along with property loss.
Development in Hazard Prone Areas
Buildings and infrastructure are generally not affected by dust. Buildings and infrastructure can
be affected by soil erosion if the erosion creates an unstable building, bridge or infrastructure.
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