Winter 2019 Resources and Publications
Buying water for the environment: A hydro-economic analysis of Salton Sea inflows
Levers, L.R., T.H. Skaggs and K.A. Schwabe
Agricultural Water Management, Volume 213, March 2019
As societies confront greater levels of water scarcity, conflict follows. Water transfers are increasing with irrigation water regularly considered in such discussions given it often comprises the bulk of water rights within a particular region, especially in water scarce environments. Here we analyze the impacts of three widely considered and implemented strategies to purchase water from irrigated agriculture—land fallowing, improvements in irrigation efficiency, and direct leasing
Extracting Phenotypic Characteristics of Corn Crops Through the Use of Reconstructed 3D Models
Zermas, D., V. Morellas, D. Mulla and N. Papanikolopoulos
Financial and social elements of modern societies are closely connected to the cultivation of corn. Due to its massive production, deficiencies during the cultivation process directly translate to major financial losses.
The Future of Agriculture in a Water-Rich State
Lewandowski, A., A.G. y Garcia, C. Lenhart, D. Mulla, A. Pradhananga and J. Strock
Open Rivers 2018
In 1920, Minnesota held 2.4 million people and 132,744 farms. Corn production was near 100 million bushels per year. By 1929, 18.5 million acres were under cultivation. Nearly 100 years later, the state has 5.4 million people, 74,500 farms, and 26 million acres of farmland.
Concentrations of pharmaceuticals and other micropollutants in groundwater downgradient from large on-site wastewater discharges
Elliott, S.M., M.L. Erickson, A.L. Krall and B.A. Adams
PloS one 2018
Large subsurface treatment systems (LSTS) and rapid infiltration basins (RIB) are preferred onsite wastewater treatments compared to direct discharge of treated wastewater to streams and adjacent facilities.
Calculator to Estimate Annual Infiltration Performance of Roadside Swales
Garcia-Serrana, M., J.S. Gulliver and J.L. Nieber
Journal of Hydrologic Engineering, 23(6), 04018017, 2018
Roadside swales or drainage ditches are low-impact development (LID) practices for stormwater treatment and control, and there is a need to quantify their infiltration performance for design and planning purposes. A roadside swale calculator has been developed where only the main design parameters that have a significant impact on the runoff volume output are required, in addition to the rainfall distribution of the study site.
The Challenge of Maintaining Stormwater Treatment Practices
Erickson, A.J., V. Taguchi and J.S. Gulliver
Sustainability, No. 349066, 2018
The methods for properly executing inspection and maintenance of stormwater control measures are often ambiguous and inconsistently applied. This paper presents specific guidelines for inspecting and maintaining stormwater practices involving media filtration, infiltration, ponds, and permeable pavements because these tend to be widely implemented and often unsatisfactorily maintained.
National Academies Report on National Water Priorities
Produced at the request of USGS, this report identifies the nation’s highest-priority water science and resources challenges over the next 25 years.
The relative roles of sorption and biodegradation in the removal of contaminants of emerging concern (CECs) in GAC-sand biofilters.
Ma, B., W.A. Arnold and R.M. Hozalski
Water Research, 2018
The removal and fate of contaminants of emerging concern (CECs) in water treatment systems is of interest given the widespread occurrence of CECs in water supplies and increase in direct potable reuse of wastewater.
Diffusion Dynamics and Optimal Coupling in Multiplex Networks with Directed Layers
Tejedor, A., A. Longjas, E. Foufoula-Georgiou, T.T. Georgiou and Y. Moreno
Physical Review X, 2018
Multiplex networks have been intensively studied during the last few years as they offer a more realistic representation of many interdependent and multilevel complex networked systems. However, even if most real networks have some degree of directionality, the vast majority of the existent literature deals with multiplex networks where all layers are undirected
Influence of Physicochemical Factors on Bacterial Communities Along the Lower Mekong River Assessed by Illumina Next-Generation Sequencing
Staley, C., N. Pongsilp, P. Nimnoi, T. Kaiser and M.J. Sadowsky
Water, Air, & Soil Pollution, 2018
The relationship between land use and microbial community structure at seven sites along the Lower Mekong River, between Thailand and the Loa People's Democratic Republic, was investigated using Illumina next-generation sequencing of the V5–V6 hypervariable regions of the 16S rRNA gene.
Reaction rates and product formation during advanced oxidation of ionic liquid cations by UV/peroxide, UV/persulfate, and UV/chlorine
S.G. Pati and W.A. Arnold
Environmental Science Water Research & Technology
Ionic liquids (ILs) are expected to be used increasingly in the coming years for industrial chemical applications as replacements for volatile organic solvents. The organic cations used in ILs typically contain quaternary ammonium groups and may reach aquatic environments due to their high water solubility and limited biodegradability.
Practical considerations for sampling and data analysis in contemporary metagenomics-based environmental studies
C. Staley and M.J. Sadowsky
Journal of Microbiological Methods, 2018
Recent advancements in metagenomic-based studies, especially analyses of amplicon-based DNA sequencing targeting taxonomic marker genes, has led to an unprecedented characterization of microbial communities from diverse ecosystems around the world.
Geochemical characterization of two ferruginous meromictic lakes in the Upper Midwest, USA
Lambrecht, N., C. Wittkop, S. Katsev, M. Fakhraee and E.D. Swanner
Journal of Geophysical Research, 2018
To elucidate the role of (bio) geochemical processes that fueled iron and carbon cycling in early Earth oceans, modern environments with similar geochemical conditions are needed.
Putative Nitrogen-fixing bacteria Associated with The Rhizosphere and Root Endosphere of wheat plants grown in an Andisol from southern Chile
J.I. Rilling, J.J. Acuña, M.J. Sadowsky and M.A. Jorquera
Frontiers in Microbiology, 2018
Acidic ash derived volcanic soils (Andisols) support 50% of cereal production in Chile. Nitrogen (N) is essential for cereal crops and commonly added as urea with consequent environmental concerns due to leaching. Despite the relevance of N to plant growth, few studies have focused on understanding the application, management and ecological role of N2-fixing bacterial populations as tool for improve the N nutrition of cereal crops in Chile.