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Nicolás Velásquez, Ricardo Mantilla, Witold Krajewski, Morgan Fonley and Felipe Quintero
This study evaluates the potential for a newly proposed non-linear subsurface flux equation to improve the performance of the hydrological Hillslope Link Model (HLM). The equation contains parameters that are functionally related to the hillslope steepne...
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Yury G. Chendev, Jason A. Hubbart, Edgar A. Terekhin, Anthony R. Lupo, Tom J. Sauer and C. Lee Burras
Afforestation trends were compared between two continentally-distinct, yet similar ecoregions to characterize similarities or differences in forest advancement due to natural and anthropogenic forcings. Temporal changes in forest cover were analyzed usin...
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Michael J. Vendrasco, Antonio Checa, William P. Heimbrock and Steven D.J. Baumann
Nacre was previously thought to be primitive in the Mollusca, but no convincing Cambrian examples are known. This aragonitic microstructure with crystal tablets that grow within an organic framework is thought to be the strongest, most fracture-resistant...
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Hosin Lee, Byungkyu Moon and Jeongbeom Lee
The need to incorporate sustainability principles and practices is increasing for environmental and economic reasons. It is imperative to identify and operationalize sustainability strategies into core administrative, planning, design, construction, oper...
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Edward Osei, Syed H. Jafri, Philip W. Gassman and Ali Saleh
While the ecological benefits of no-till are largely indisputable, the economic impacts are less certain, and the latter may be partly to blame for lower-than-expected adoption of no-till. In this study, we contribute to a better understanding of the eco...
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Edward Osei, Syed H. Jafri, Philip W. Gassman, Ali Saleh and Oscar Gallego
Nonpoint source pollution from cultivated croplands has often been associated with downstream water quality impairment in various watersheds. Given projected changes in global climate patterns, this study contributes to the existing literature by elucida...
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Seyed Amirhossein Hosseini, Ahmad Alhasan and Omar Smadi
This paper describes the process and outcome of deterioration modeling for three different pavement types (asphalt, concrete, and composite) in the state of Iowa. Pavement condition data is collected by the Iowa Department of Transportation (DOT) and sto...
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Ahmad Alhasan, Inya Nlenanya, Omar Smadi and Cameron A. MacKenzie
Safety performance is a crucial component of highway network performance evaluation. Besides their devastating impact on roadway users, traffic crashes lead to substantial economic losses on both personal and societal levels. Due to the complexity of cra...
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William Beck, Thomas Isenhart, Peter Moore, Keith Schilling, Richard Schultz and Mark Tomer
Streambank erosion may represent a significant source of sediment and phosphorus (P) to overall watershed loads; however, watershed-scale quantification of contributions is rare. In addition, streambanks are often comprised of highly variable stratigraph...
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Muhammad Aurangzaib, Kenneth J. Moore, Andrew W. Lenssen, Sotirios V. Archontoulis, Emily A. Heaton and Shuizhang Fei
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Pedro Alexander Infante, Ken Moore, Charlie Hurburgh, Paul Scott, Sotirios Archontoulis, Andrew Lenssen and Shui-zhang Fei
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William Beck, Thomas Isenhart, Peter Moore, Keith Schilling, Richard Schultz and Mark Tomer
Streambank erosion may represent a significant source of sediment and phosphorus (P) to overall watershed loads; however, watershed-scale quantification of contributions is rare. In addition, streambanks are often comprised of highly variable stratigraph...
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Ahmad Alhasan, Inya Nlenanya, Omar Smadi and Cameron A. MacKenzie
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Daniel Gilles, Nathan Young, Harvest Schroeder, Jesse Piotrowski and Yi-Jia Chang
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Silvano A. Wueschner
This paper examines how members of one Amish settlement in southern Iowa have attempted to broaden their economic activities in an effort to maintain their religiously based community; The Amish dress in a plain 19th century style and rely on horses for ...
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- Howard, - Needles, - Tammen, - Bergendoff
Pág. 85 - 89
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Roger W. Bachmann, Mark V. Hoyer and Daniel E. Canfield
Field measurements of water quality in Iowa lakes contradict paleolimnological studies that used 210Pb dating techniques in 33 lakes to infer accelerating eutrophication and sediment accumulation in recent decades. We tested this hypothesis by analyzing ...
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Kenneth M. Wacha, A. N. Thanos Papanicolaou, Christos P. Giannopoulos, Benjamin K. Abban, Christopher G. Wilson, Shengnan Zhou, Jerry L. Hatfield, Timothy R. Filley and Tingyu Hou
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Conrad Brendel, Michelle L. Soupir
Pág. 1 - 18
Fecal Indicator Bacteria (FIB) such as Escherichia coli (E. coli) are a leading cause of surface water impairments in the United States. However, the relative impacts of different watershed characteristics on microbial water quality in agriculturally dom...
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Conrad Brendel and Michelle L. Soupir
Fecal Indicator Bacteria (FIB) such as Escherichia coli (E. coli) are a leading cause of surface water impairments in the United States. However, the relative impacts of different watershed characteristics on microbial water quality in agriculturally dom...
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