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- Cranberry Chart Book - Management Guide (7)
- Douglas L Karlen (4)
- Innovations in Managing Western Water: New Approaches for Balancing Environmental, Social and Economic Outcomes (Martz Summer Conference, June 11-12) (3)
- All Current Publications (1)
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Articles 1 - 24 of 24
Full-Text Articles in Life Sciences
Evaluating And Predicting Agricultural Management Effects Under Tile Drainage Using Modified Apsim, Robert W. Malone, N. Huth, P. S. Carberry, Liwang Ma, Thomas C. Kaspar, Douglas L. Karlen, T. Meade, Ramesh S. Kanwar, Philip Heilman
Evaluating And Predicting Agricultural Management Effects Under Tile Drainage Using Modified Apsim, Robert W. Malone, N. Huth, P. S. Carberry, Liwang Ma, Thomas C. Kaspar, Douglas L. Karlen, T. Meade, Ramesh S. Kanwar, Philip Heilman
Douglas L Karlen
An accurate and management sensitive simulation model for tile-drained Midwestern soils is needed to optimize the use of agricultural management practices (e.g., winter cover crops) to reduce nitrate leaching without adversely affecting corn yield. Our objectives were to enhance the Agricultural Production Systems Simulator (APSIM) for tile drainage, test the modified model for several management scenarios, and then predict nitrate leaching with and without winter wheat cover crop. Twelve years of data (1990–2001) from northeast Iowa were used for model testing. Management scenarios included continuous corn and corn–soybean rotations with single or split N applications. For 38 of 44 observations, …
Corn-Soybean And Alternative Cropping Systems Effects On No 3 -N Leaching Losses In Subsurface Drainage Water, Rameshwar S. Kanwar, Richard M. Cruse, Mohammadreza Ghaffarzadeh, Allah Bakhsh, Douglas Karlen, Theodore B. Bailey
Corn-Soybean And Alternative Cropping Systems Effects On No 3 -N Leaching Losses In Subsurface Drainage Water, Rameshwar S. Kanwar, Richard M. Cruse, Mohammadreza Ghaffarzadeh, Allah Bakhsh, Douglas Karlen, Theodore B. Bailey
Douglas L Karlen
Alternative cropping systems can improve resource use efficiency, increase corn grain yield, and help in reducing negative impacts on the environment. A 6-yr (1993 to 1998) field study was conducted at the Iowa State University’s Northeastern Research Center near Nashua, Iowa, to evaluate the effects of non-traditional cropping systems [strip inter cropping (STR)-corn (Zea mays L.)/soybean (Glycine max L.)/oats (Avina sativa L.)]; alfalfa rotation (ROT)-3-yr (1993 to 1995) alfalfa (Medicago sativa L.) followed by corn in 1996, soybean in 1997, and oats in 1998), and traditional cropping system (corn after soybean (CS) and soybean after corn (SC) on the flow …
Cropping System Effects On No3-N Loss With Subsurface Drainage Water, Allah Bakhsh, Rameshwar S. Kanwar, Theodore B. Bailey, Cynthia A. Cambardella, Douglas Karlen, Thomas S. Colvin
Cropping System Effects On No3-N Loss With Subsurface Drainage Water, Allah Bakhsh, Rameshwar S. Kanwar, Theodore B. Bailey, Cynthia A. Cambardella, Douglas Karlen, Thomas S. Colvin
Douglas L Karlen
An appropriate combination of tillage and nitrogen management practices will be necessary to develop sustainable farming practices. A six–year (1993–1998) field study was conducted on subsurface–drained Clyde–Kenyon–Floyd soils to quantify the impact of two tillage systems (chisel plow vs. no tillage) and two N fertilizer management practices (preplant single application vs. late–spring soil test based application) on nitrate–nitrogen (NO3–N) leaching loss with subsurface drain discharge from corn (Zea mays L.) soybean (Glycine max L.) rotation plots. Preplant injected urea ammonium nitrate solution (UAN) fertilizer was applied at the rate of 110 kg ha–1 to chisel plow and no–till corn plots, …
Alternative N Fertilizer Management Strategies Effects On Subsurface Drain Effluent And N Uptake, David L. Bjorneberg, Douglas L. Karlen, Rameshwar S. Kanwar, Cynthia A. Cambardella
Alternative N Fertilizer Management Strategies Effects On Subsurface Drain Effluent And N Uptake, David L. Bjorneberg, Douglas L. Karlen, Rameshwar S. Kanwar, Cynthia A. Cambardella
Douglas L Karlen
Demonstrating positive environmental benefits of alternative N fertilizer management strategies, without adversely affecting crop growth or yield, was a major goal for the Midwest Management Systems Evaluation Areas (MSEA) program. Our project objectives within this program were to quantify the effects of split- and single-N fertilization strategies on NO3-N concentration and loss in subsurface drain effluent and N accumulation and yield of corn (Zea mays L.) and soybean [Glycine max (L.) Merr.]. The study was conducted on glacial till derived soils in northeast Iowa from 1993 through 1995 using no-till and chisel plow tillage treatments. One-third of the 2,611 effluent …
Exploring, Exploiting And Evolving Diversity Of Aquatic Ecosystem Models: A Community Perspective, Annette B.G. Janssen, George B. Arhonditsis, Arthur Beusen, Karsten Bolding, Louise Bruce, Jorn Bruggeman, Raoul-Marie Couture, Andrea S. Downing, J. Alex Elliott, Marieke A. Frassl, Gideon Gal, Daan J. Gerla, Matthew R. Hipsey, Fenjuan Hu, Stephen C. Ives, Jan H. Janse, Erik Jeppesen, Klaus D. Jöhnk, David Kneis, Xiangzhen Kong, Jan J. Kuiper, Moritz K. Lehmann, Carsten Lemmen, Deniz Özkundakci, Thomas Petzoldt, Karsten Rinke, Barbara J. Robson, René Sachse, Sebastiaan A. Schep, Martin Schmid, Huub Scholten, Sven Teurlincx, Dennis Trolle, Tineke A. Troost, Anne A. Van Dam, Luuk P.A. Van Gerven, Mariska Weijerman, Scott A. Wells, Wolf M. Mooij
Exploring, Exploiting And Evolving Diversity Of Aquatic Ecosystem Models: A Community Perspective, Annette B.G. Janssen, George B. Arhonditsis, Arthur Beusen, Karsten Bolding, Louise Bruce, Jorn Bruggeman, Raoul-Marie Couture, Andrea S. Downing, J. Alex Elliott, Marieke A. Frassl, Gideon Gal, Daan J. Gerla, Matthew R. Hipsey, Fenjuan Hu, Stephen C. Ives, Jan H. Janse, Erik Jeppesen, Klaus D. Jöhnk, David Kneis, Xiangzhen Kong, Jan J. Kuiper, Moritz K. Lehmann, Carsten Lemmen, Deniz Özkundakci, Thomas Petzoldt, Karsten Rinke, Barbara J. Robson, René Sachse, Sebastiaan A. Schep, Martin Schmid, Huub Scholten, Sven Teurlincx, Dennis Trolle, Tineke A. Troost, Anne A. Van Dam, Luuk P.A. Van Gerven, Mariska Weijerman, Scott A. Wells, Wolf M. Mooij
Civil and Environmental Engineering Faculty Publications and Presentations
Here, we present a community perspective on how to explore, exploit and evolve the diversity in aquatic ecosystem models. These models play an important role in understanding the functioning of aquatic ecosystems, filling in observation gaps and developing effective strategies for water quality management. In this spirit, numerous models have been developed since the 1970s. We set off to explore model diversity by making an inventory among 42 aquatic ecosystem modellers, by categorizing the resulting set of models and by analysing them for diversity. We then focus on how to exploit model diversity by comparing and combining different aspects of …
Mcicsl Newsletter - November 2015, Shannon R. Trimboli Education Coordinator
Mcicsl Newsletter - November 2015, Shannon R. Trimboli Education Coordinator
MCICSL Newsletter
This issue includes the following:
Partners Recognized for Water Quality Research at Mammoth Cave National Park and Increasing Diversity in the Geosciences
Texas A&M – Galveston Students Participate in Citizen Science at Mammoth Cave National Park
Northern Kentucky University and the Mammoth Cave International Center for Science and Learning to Host Partners in the Parks Program at Mammoth Cave National Park
as well as education and research highlights, and MCICSL symposium information
Rainwater Harvesting For The Home And Farm, Matthew Palmer, Kohl Carter, Roslynn Brain, Shannon Cromwell
Rainwater Harvesting For The Home And Farm, Matthew Palmer, Kohl Carter, Roslynn Brain, Shannon Cromwell
All Current Publications
This fact sheet covers the basic components of a rain harvesting system, Utah's laws for rain harvesting, how to estimate the volume of water storage you will need, ideas for increasing water pressure in your system, as well as tips and insights for building a rain harvesting system.
Changes In The Surface Water Chemistry At Low Tide In Drainage Channels At East Trinity Coastal Wetland, Cairns (August 2013), Nicholas J. Ward, Troy Shepherd, Richard T. Bush, Zhaohui Wang
Changes In The Surface Water Chemistry At Low Tide In Drainage Channels At East Trinity Coastal Wetland, Cairns (August 2013), Nicholas J. Ward, Troy Shepherd, Richard T. Bush, Zhaohui Wang
Dr Nicholas J Ward
In this study surface water monitoring was undertaken at a number of locations at the East Trinity wetland site in August 2013 to gain an understanding of the flux of constituents from the drainage system. The monitoring period was set to co-inside with the extreme low-tide cycle to allow the best opportunity to measure flux.
Establishing A National Shellfish Sanitation Program In The Gambia, West Africa, Michael A. Rice, Foday Conteh, Karen Kent, Brian Crawford, Banja Bamba, Fatou Janha, Ismaila Bojang
Establishing A National Shellfish Sanitation Program In The Gambia, West Africa, Michael A. Rice, Foday Conteh, Karen Kent, Brian Crawford, Banja Bamba, Fatou Janha, Ismaila Bojang
Michael A Rice
A successful national program to assure sanitary quality of molluscan shellfish requires a multi-disciplinary and multi-agency governmental training, data collection, policy development and management effort in collaboration with members of the shellfish industry. The Tanbi Wetlands and other estuaries of Gambia support shellfisheries for oysters, Crassostrea tulipa, and the senile ark, Senelia senilis, conducted by the TRY Oyster Women’s Association. With low shellfish prices and a small local market, a Gambian National Shellfish Sanitation Program (GNSSP) was begun as a means to boost consumer confidence and allow market access to Gambia’s robust seasonal international tourism trade. Gambian officials began training …
Slides: Water Planning In California: Past, Present, Future, Ellen Hanak
Slides: Water Planning In California: Past, Present, Future, Ellen Hanak
Innovations in Managing Western Water: New Approaches for Balancing Environmental, Social and Economic Outcomes (Martz Summer Conference, June 11-12)
Presenter: Ellen Hanak, Senior Fellow and Director, PPIC Water Policy Center, Public Policy Institute of California
13 slides
Slides: Perspectives On Water Management In Arizona, Kathy Jacobs
Slides: Perspectives On Water Management In Arizona, Kathy Jacobs
Innovations in Managing Western Water: New Approaches for Balancing Environmental, Social and Economic Outcomes (Martz Summer Conference, June 11-12)
Presenter: Kathy Jacobs, Director, Center for Climate Adaptation Science and Solutions (CCASS), Department of Soil, Water and Environmental Science, University of Arizona
25 slides
Slides: Colorado's Water Plan, Lauren Ris
Slides: Colorado's Water Plan, Lauren Ris
Innovations in Managing Western Water: New Approaches for Balancing Environmental, Social and Economic Outcomes (Martz Summer Conference, June 11-12)
Presenter: Lauren Ris, Assistant Director for Water, Colorado Department of Natural Resources
23 slides
The Effects Of Environmental Factors On Bromeliad Invertebrate Biodiversity, Maya E. Navarro
The Effects Of Environmental Factors On Bromeliad Invertebrate Biodiversity, Maya E. Navarro
DePaul Discoveries
Bromeliaceae is a family of Neotropical plants that retain water between leaves of a rosette arrangement. Each water-retaining tank is referred to as a phytotelma. This particular system is important to consider in the understanding of biodiversity because it creates an ecosystem of its own, providing a habitat for many invertebrates and larvae. In this study, the relationship between environmental factors such as water quality and the biodiversity of invertebrates in epiphytic bromeliads was examined in two different settings. Sample sizes of ten bromeliads were taken from the primary and secondary forests of the Las Cruces Biological Station in Coto …
Human Impacts On Water Systems: Biological Assessment Of Water Quality In The Bosque Protector Río Guajalito (Bprg) Using Aquatic Macroinvertebrates, Harrison Smith
Independent Study Project (ISP) Collection
Benthic macroinvertebrates have been extensively used as bioindicators for water quality due to their varying sensitivity to a diverse range of impacts on hydrographic sources. In this study a sampling of macroinvertebrates was carried out in the Guajalito and Brincador rivers and a small creek that runs through the private reserve Bosque Protector Rio Guajalito in order to analyze if the health of the rivers has changed in relation to previous studies. The sampling stations were located upstream and downstream of potential sources of disturbance in each of the three streams sampled in order to determine what level of impact …
2015 Chart Book: Late Water, Anne Averill, Carolyn J. Demoranville, Hilary Sandler
2015 Chart Book: Late Water, Anne Averill, Carolyn J. Demoranville, Hilary Sandler
Cranberry Chart Book - Management Guide
No abstract provided.
2015 Chartbook: Winter Management, Carolyn J. Demoranville
2015 Chartbook: Winter Management, Carolyn J. Demoranville
Cranberry Chart Book - Management Guide
No abstract provided.
2015 Chart Book: Nutrition, Carolyn J. Demoranville
2015 Chart Book: Nutrition, Carolyn J. Demoranville
Cranberry Chart Book - Management Guide
No abstract provided.
2016 Chart Book: Insect Management At-A-Glance, Anne L. Averill, Martha M. Sylvia
2016 Chart Book: Insect Management At-A-Glance, Anne L. Averill, Martha M. Sylvia
Cranberry Chart Book - Management Guide
No abstract provided.
2015 Chart Book: Irrigation Water Management, Peter Jeranyama
2015 Chart Book: Irrigation Water Management, Peter Jeranyama
Cranberry Chart Book - Management Guide
No abstract provided.
2015 Chart Book: Groundwater Protection Regulations & Zone Ii, Martha Sylvia
2015 Chart Book: Groundwater Protection Regulations & Zone Ii, Martha Sylvia
Cranberry Chart Book - Management Guide
No abstract provided.
2015 Chart Book, Anne L. Averill, Carolyn J. Demoranville, Katherine M. Ghantous, Peter Jeranyama, Erika Saalau Rojas, Hilary A. Sandler, Martha Sylvia
2015 Chart Book, Anne L. Averill, Carolyn J. Demoranville, Katherine M. Ghantous, Peter Jeranyama, Erika Saalau Rojas, Hilary A. Sandler, Martha Sylvia
Cranberry Chart Book - Management Guide
No abstract provided.
Evaluation Of The Performance Of A Rural Municipal Wastewater Treatment Plant In Nacogdoches, East Texas (Usa) (Abstract), Kefa Karimu Onchoke, Michael Janusa, Salomey Asantewaa Sasu
Evaluation Of The Performance Of A Rural Municipal Wastewater Treatment Plant In Nacogdoches, East Texas (Usa) (Abstract), Kefa Karimu Onchoke, Michael Janusa, Salomey Asantewaa Sasu
Faculty Publications
The performance of a rural wastewater treatment facility, Nacogdoches Wastewater Treatment Plant
(NWWTP), in East Texas, USA, was assessed from January 2013 through June 2014. The elemental concentrations (Na, Mg, Ca, Ni, Pb, Mn, Cr, Mo, and Cu, Al, As, B, Ba, Ag, Cd, Fe, Hg, K, Se, Zn, Co, P, and S) were measured using inductively coupled plasma optical emission spectrometry. The anion concentrations (Br−, NO3- , NO2- , PO34-,F−, Cl−, and SO24−) were measured by ion chromatography. In general, the NWWTP was found efficient in removal to ≥ 96% for metals. The removal efficiency for anions was in …
Surface Runoff Characteristics From Claypan Soil In Southeastern Kansas Receiving Different Plant Nutrient Sources And Tillage, D. W. Sweeney, Philip Barnes, Gary Pierzynski
Surface Runoff Characteristics From Claypan Soil In Southeastern Kansas Receiving Different Plant Nutrient Sources And Tillage, D. W. Sweeney, Philip Barnes, Gary Pierzynski
Kansas Agricultural Experiment Station Research Reports
Preliminary results show that two-year average total nitrogen (N) runoff losses and ortho-phosphorus (P) and total P runoff losses in the second year were greater with N-based turkey litter/no-till applications than P-based turkey litter or fertilizer-only applications. Incorporation of turkey litter applied based on N requirements resulted in N and P losses that did not differ from losses from P-based or fertilizer-only treatments. Chemical and statistical analyses of third-year samples will allow for final results and interpretation.
The Phytoplankton Functional Group Concept Provides A Reliable Basis For Ecological Status Estimation In The Çaygören Reservoir (Turkey), Kemal Çeli̇k, Tuğba Ongun Sevi̇ndi̇k
The Phytoplankton Functional Group Concept Provides A Reliable Basis For Ecological Status Estimation In The Çaygören Reservoir (Turkey), Kemal Çeli̇k, Tuğba Ongun Sevi̇ndi̇k
Turkish Journal of Botany
The phytoplankton functional group (FG) concept has been successfully used to determine water quality states in both lake and river systems, but is not yet stressed in regular studies in reservoir environments. The purpose of our study was to estimate the ecological status of the temperate Çaygören Reservoir (2007-2009) using the Q(r) FG composition metric, and to test whether it is able to follow the main structuring of the physical and chemical parameters studied. The main occurring coda were codon C (Cyclotella meneghiniana Kützing, Stephanodiscus neoastraea Hakansson and Hickel), codon T (Gloeotila subconstricta (G.S. West) Printz, Mougeotia sp.), codon X2 …