| |
| Web URL(s): | http://www.jswconline.org/content/56/3/207.full.pdf+html
Last checked: 10/01/2008
Requires: PDF Reader
Access conditions: Item is within a limted-access website
http://www.jswconline.org/content/56/3/207.full.pdf
Last checked: 08/13/2013
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
|---|
| Publication Type:
| Professional |
|---|
| Author(s): | Parysow, P.;
Wang, G.;
Gertner, G.;
Anderson, A. B. |
|---|
| Author Affiliation: | Parysow, Wang, and Gertner: Department of Natural Resources and Environmental Sciences, University of Illinois, Urbana-Champaign; and Anderson: U. S. Army Construction Engineering Research Laboratories, Natural Resources Assessment and Management Division, Champaign, IL |
|---|
| Title: | Assessing uncertainty of erodibility factor in national cooperative soil surveys: A case study at Fort Hood, Texas |
|---|
| Section: | Research
Other records with the "Research" Section
|
|---|
| Source: | Journal of Soil and Water Conservation. Vol. 56, No. 3, Third Quarter 2001, p. 207-211. |
|---|
| Publishing Information: | Ankeny, IA: Soil and Water Conservation Society |
|---|
| # of Pages: | 5 |
|---|
| Related Web URL: | http://www.jswconline.org/content/56/3/207.abstract
Last checked: 08/13/2013
Notes: Abstract only |
|---|
| Keywords: | TIC Keywords: Erosion; Soil surveys; Soil loss; Physical properties of soil
|
|---|
| Geographic Terms: | Fort Hood, Texas |
|---|
| Abstract/Contents: | "Soil erodibility is the inherent susceptibility of soil to be lost to erosion. The Universal Soil Loss Equation (USLE) is an erosion model that predicts soil loss as a function of soil erodibility (known as K-factor), as well as topographic, rainfall/runoff, cover, and support management factors. The National Cooperative Soil Survey (NCSS) has assigned each soil series (minimum mapping unit) one value of K representing classes of soil erodibility. Information contained in those surveys implies that K-factor values are free of estimation errors, and remain unchanged not only across whole soil series but also over time. However, evidence provided by soil science literature challenge those assumptions. The objective of this study was to evaluate variability and uncertainty in K-factor as reported by the NCSS at Fort Hood, Texas. We obtained one K value from each of 524 soil samples collected in the late summer of 1998 following a 10 m square grid. For each soil series, sampled K means were significantly different than K values proposed by NCSS, and intraseries coefficients of variation showed variability of up to about 20%. Sampled K vaules disregarded NCSS soil series boundaries and departed from NCSS K values as the distance from the soil series boundary increased. The USLE estimates of soil loss using sampled K versus NCSS K were also significantly different. Limitations in K estimation from typical pedons of original soil surveys, soil misclassification, as well as changes in surface soil structure may have contributed to the differences found." |
|---|
| Language: | English |
|---|
| References: | 30 |
|---|
| Note: | Figures
Tables
Graphs |
|---|
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Parysow, P., G. Wang, G. Gertner, and A. B. Anderson. 2001. Assessing uncertainty of erodibility factor in national cooperative soil surveys: A case study at Fort Hood, Texas. J. Soil Water Conserv. 56(3):p. 207-211. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=78166 |
| If there are problems with this record, send us feedback about record 78166. |
| Choices for finding the above item: |
|---|
| Web URL(s):
http://www.jswconline.org/content/56/3/207.full.pdf+html
Last checked: 10/01/2008
Requires: PDF Reader
Access conditions: Item is within a limted-access website
http://www.jswconline.org/content/56/3/207.full.pdf
Last checked: 08/13/2013
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
| 
MSU catalog number: S 622 .J65 |
| Find from within TIC:
Digitally in TIC by record number. |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |
