Laura Lynn Keefer

Fluvial Geomorphologist

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Research Output

  • 12 Conference contribution
  • 9 Article
  • 1 Technical report
  • 1 Paper
2018

Critical transition in critical zone of intensively managed landscapes

Kumar, P., Le, P. V. V., Papanicolaou, A. N. T., Rhoads, B. L., Anders, A. M., Stumpf, A., Wilson, C. G., Bettis, E. A., Blair, N., Ward, A. S., Filley, T., Lin, H., Keefer, L., Keefer, D., Lin, Y. F., Muste, M., Royer, T. V., Foufoula-Georgiou, E. & Belmont, P., Jun 2018, In : Anthropocene. 22, p. 10-19 10 p.

Research output: Contribution to journalArticle

Quantification of Field Scale Denitrification by Stable Isotope Analysis of NO3- and H2O from Tile Drain Runoff

Michalski, G., Wilkins, B. P., Woo, D. K., Kumar, P., Keefer, D. A., Keefer, L. L., Fisher, M., Li, J., Hodson, T. O. & Welp, L., Dec 1 2018, AGU Fall Meeting Abstracts. Vol. 33. p. abstract B33G-2755

Research output: Chapter in Book/Report/Conference proceedingConference contribution

The C-biogeochemistry of a Midwestern USA agricultural impoundment in context: Lake Decatur in the intensively managed landscape critical zone observatory

Blair, N. E., Leithold, E. L., Thanos Papanicolaou, A. N., Wilson, C. G., Keefer, L., Kirton, E., Vinson, D., Schnoebelen, D., Rhoads, B., Yu, M. & Lewis, Q., Apr 1 2018, In : Biogeochemistry. 138, 2, p. 171-195 25 p.

Research output: Contribution to journalArticle

The intensively managed landscape critical zone observatory: A scientific testbed for understanding critical zone processes in agroecosystems

Wilson, C. G., Abban, B., Keefer, L. L., Wacha, K., Dermisis, D., Giannopoulos, C., Zhou, S., Goodwell, A. E., Woo, D. K., Yan, Q., Ghadiri, M., Stumpf, A., Pitcel, M., Lin, Y. F., Marini, L., Storsved, B., Goff, K., Vogelgsang, J., Dere, A., Schilling, K. E. & 13 others, Muste, M., Blair, N. E., Rhoads, B., Bettis, A., Pai, H., Kratt, C., Sladek, C., Wing, M., Selker, J., Tyler, S., Lin, H., Kumar, P. & Papanicolaou, A. N., Jan 1 2018, In : Vadose Zone Journal. 17, 1, 180088.

Research output: Contribution to journalArticle

Open Access
2017

Assessing Progress on the 1997 Integrated Management Plan for the Illinois River Watershed

Esarey, D., Holm, N. L., Keefer, L. L., Meschewski, E., Phillips, A. C., Stein, J. A., Winkel, R., Abrams, D., Bauer, E., Beardsley, J., Benson, T. J., Beveroth, T. A., Bhowmik, N. G., Casper, A. F., Cao, Y., Cummings, K. S., Davisson, D., Dreslik, M. J., Getahun, E., Hinz, L. C. & 10 others, Knapp, V., McConkey, S. A., Markus, M., Marlin, J. C., Metzke, B., Phillips, C. A., Tiemann, J. S., Ward, M. P., Wilm, B. W. & Yetter, A. P., Dec 19 2017, Prairie Research Institute. (Prairie Research Institute response team reports)

Research output: Book/Report/Conference proceedingTechnical report

Microbial diversity in an intensively managed landscape is structured by landscape connectivity

Griffin, J. S., Lu, N., Sangwan, N., Li, A., Dsouza, M., Stumpf, A. J., Sevilla, T., Culotti, A., Keefer, L. L., Kelly, J. J., Gilbert, J. A., Wells, G. F. & Packman, A. I., Oct 1 2017, In : FEMS microbiology ecology. 93, 10, fix120.

Research output: Contribution to journalArticle

Sediment dynamics and C-sequestration in the Midwestern USA reservoir, Lake Decatur

Blair, N. E., Papanicolaou, T., Wilson, C. G., Leithold, E. L. & Keefer, L., 2017, V.M. Goldschmidt Conference - Program and Abstracts 2017. Vol. 27.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2016

Anthropogenic reorganization of critical zone in intensively managed landscapes

Kumar, P., Anders, A. M., Bettis III, E. A., Blair, N. E., Filley, T. R., Grimley, D. A., Le, P. V., Lin, H., Lin, Y-F. F., Keefer, D. A., Keefer, L. L., Muste, M., Packman, A. I., Papanicolaou, T., Rhoads, B. L., Richardson, M., Schnoebelen, D. J., Stumpf, A., Ward, A. S., Wilson, C. G. & 3 others, Woo, D., Yan, Q. & Goodwell, A. E., 2016, AGU 2016 fall meeting. Vol. 2016.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Methane generation in Lake Decatur, IL, a Midwestern U.S. impoundment

Blair, N. E., Kirton, E. M., Williams, J. J., Zeng, Y., Vinson, D., Keefer, L., Schnoebelen, D. & Leithold, E. L., 2016, V.M. Goldschmidt Conference - Program and Abstracts. Vol. 26. p. 244

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2013

Watershed Management Tool for Evaluating BMPs: Case Studies in the Mackinaw and Upper Sangamon Rivers

Keefer, L. L. & Bekele, E., 2013, The Illinois River : Working Locally--Reaching Globally 15th Biennial Governor's Conference on the Managment of the Illinois River System. Vol. 14.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2012

The microelectronic wireless nitrate sensor network for environmental water monitoring

Gartia, M. R., Braunschweig, B., Chang, T. W., Moinzadeh, P., Minsker, B. S., Agha, G., Wieckowski, A., Keefer, L. L. & Liu, G. L., Dec 1 2012, In : Journal of Environmental Monitoring. 14, 12, p. 3068-3075 8 p.

Research output: Contribution to journalArticle

2009

Modeling the hydrology and hydraulics of the cache river system

Demissie, M., Keefer, L. L., Lian, Y., Yue, F. & Bekele, E., 2009, Proceedings of World Environmental and Water Resources Congress 2009 - World Environmental and Water Resources Congress 2009: Great Rivers. Vol. 342. p. 6010-6019 10 p.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2008

Illinois river CREP: Sediment and nutrient delivery assessment

Demissie, M., Slowikowski, J. A., Keefer, L. L. & Stevenson, K., Dec 1 2008, World Environmental and Water Resources Congress 2008: Ahupua'a - Proceedings of the World Environmental and Water Resources Congress 2008. Babcock, R. & Walton, R. W. (eds.). (World Environmental and Water Resources Congress 2008: Ahupua'a - Proceedings of the World Environmental and Water Resources Congress 2008; vol. 316).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Spatial and temporal variations of nitrate concentration and load in an upper midwest agricultural watershed

Bauer, E. & Keefer, L. L., 2008, 2008 Fall Meeting of the American Geophysical Union (AGU 2008).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2007

Effective discharge computations for an intensively monitored Illinois stream

Crowder, D. W. & Keefer, L. L., Dec 1 2007, Restoring Our Natural Habitat - Proceedings of the 2007 World Environmental and Water Resources Congress. (Restoring Our Natural Habitat - Proceedings of the 2007 World Environmental and Water Resources Congress).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

The importance of managing sedimentation in the Cache River Wetlands

Demissie, M., Keefer, L., Lian, Y. & Yue, F., Dec 1 2007, Restoring Our Natural Habitat - Proceedings of the 2007 World Environmental and Water Resources Congress. (Restoring Our Natural Habitat - Proceedings of the 2007 World Environmental and Water Resources Congress).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

The importance of managing sedimentation in the Cache River Wetlands

Demissie, M., Keefer, L., Lian, Y. & Yue, F., Jan 1 2007, Restoring Our Natural Habitat - Proceedings of the 2007 World Environmental and Water Resources Congress. American Society of Civil Engineers, (Restoring Our Natural Habitat - Proceedings of the 2007 World Environmental and Water Resources Congress).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2006

Evaluating the effectiveness of the Illinois River Conservation Reserve Enhancement Program in reducing sediment delivery

Demissie, M., Keefer, L. L., Slowikowski, J. A. & Stevenson, K., Sep 13 2006, In : IAHS-AISH Publication. 306, p. 295-303 9 p.

Research output: Contribution to journalArticle

2005

Rapid stream assessments of the Illinois River watershed

White, W. P. & Keefer, L. L., Dec 1 2005, World Water Congress 2005: Impacts of Global Climate Change - Proceedings of the 2005 World Water and Environmental Resources Congress. 1 p. (World Water Congress 2005: Impacts of Global Climate Change - Proceedings of the 2005 World Water and Environmental Resources Congress).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2002

AGNPS-based assessment of the impact of BMPs on nitrate-nitrogen discharging into an Illinois water supply lake

Borah, D. K., Demissie, M. & Keefer, L. L., Jun 2002, In : Water International. 27, 2, p. 255-265 11 p.

Research output: Contribution to journalArticle

1998

Watershed approach for the protection of drinking water supplies in central illinois

Demissie, M. & Keefer, L., Dec 1998, In : Water International. 23, 4, p. 272-277 6 p.

Research output: Contribution to journalArticle

1997

Sources of nitrate contamination in Central Illinois streams and lakes

Demissie, M., Asce, M., Keefer, L., Shaw, S. & Nichols, K., Jan 1 1997, p. 113-118. 6 p.

Research output: Contribution to conferencePaper