Winter 2018 Resources and Publications

The Minnesota Geological Survey is making steady progress on statewide coverage of County Geologic Atlases.  At this time 50 of the 87 counties (57%) have a completed Part A atlas, or a project underway (38 complete, 12 underway, 3 revised, 3 revisions underway).  Our most recent completions are subprojects in St. Louis and Lake counties.  Because of the size of these counties, and the uneven distribution of data and water management activity, we are open-filing elements of these two atlases as they are completed.  Final versions will be compiled when all the subproject elements are complete.  Current atlases for St. Louis and Lake counties are available and include maps of bedrock geology, bedrock topography, surficial geology, and glacial drift thickness.  All completed County Geologic Atlases are now available.  Printed versions can be purchased at the MGS map sales office.  This work is supported largely by the Environment and Natural Resource Trust Fund as recommended by the Legislative and Citizen Commission on Minnesota Resources and by Clean Water Funds as recommended by the Clean Water Council, and by federal cost-sharing.

Non-Uniform Overland Flow-Infiltration Model for Roadside Swales
Garcia-Serrana, M., J.S. Gulliver and J.L. Nieber
Journal of Hydrology, 552, 586-599, 2017

There is a need to quantify the hydrologic performance of vegetated roadside swales (drainage ditches) as stormwater control measures (SCMs). To quantify their infiltration performance in both the side slope and the channel of the swale, a model has been developed for coupling a Green-Ampt-Mein-Larson (GAML) infiltration submodel with kinematic wave submodels for both overland flow down the side slope and open channel flow for flow in the ditch.

Sedimentary record of antibiotic accumulation in Minnesota Lakes
Kerrigan, J.F., K.D. Sandberg, D,R. Engstrom, T.M. LaPara and W.A. Arnold
Science of the Total Environment - 2017

The widespread detection of antibiotics in the environment is concerning because antibiotics are designed to be effective at small doses. The objective of this work was to quantify the accumulation rates of antibiotics used by humans and animals, spanning several major antibiotic classes (sulfonamides, tetracyclines, fluoroquinolones, and macrolides), in Minnesota lake-sediment cores.

Simulation and assessment of groundwater flow and groundwater and surface-water exchanges in lakes of the northeast Twin Cities Metropolitan Area, Minnesota, 2003 through 2013: Chapter B of Water levels and groundwater and surface-water exchanges in lakes of the northeast Twin Cities Metropolitan Area, Minnesota, 2002 through 2015
Jones, P.M.,  J.L. Roth, J.J. Trost, C.A. Christenson, A.L. Diekoff, and M.L. Erickson - Scientific Investigations Report 2016-5139-B, 2017

Water levels during 2003 through 2013 were less than mean water levels for the period 1925–2013 for several lakes in the northeast Twin Cities Metropolitan Area in Minnesota. Previous periods of low lake-water levels generally were correlated with periods with less than mean precipitation. Increases in groundwater withdrawals and land-use changes have brought into question whether or not recent (2003–13) lake-water-level declines are solely caused by decreases in precipitation.

Effects of Climate Change on Lake Thermal Structure and Biotic Response in Northern Wilderness Lakes
Edlund, M.B.,  J.E .Almendinger, X. Fang, J.M.R. Hobbs, D.D VanderMeulen, R.L. Key and D.R. Engstrom  - Water, 2017

Climate disrupts aquatic ecosystClimate disrupts aquatic ecosystems directly through changes in temperature, wind, and precipitation, and indirectly through watershed effects. Climate-induced changes in northern lakes include longer ice-free season, stronger stratification, browning, shifts in algae, and more cyanobacterial blooms. We compared retrospective temperature-depth relationships modeled using MINLAKE2012 with biogeochemical changes recorded in sediment cores.

Phosphate Removal from Agricultural Tile Drainage with Iron Enhanced Sand
Erickson, A.J., J.S. Gulliver, and P.T. Weiss - Water, 2017

Can iron enhanced sand filtration capture total phosphorus and soluble phosphorus (phosphate) from agricultural tile drainage? A monitoring study measured the total phosphorus and phosphate capture performance of an iron enhanced sand filter (IESF) installed to treat agricultural tile drainage in Wright County, MT, USA.

Characterization of streams and rivers in the Minnesota River Basin Critical Observatory: water chemistry and biological field collections, 2013-2016
Dolph, C., A. Hansen, K. Kemmitt, B. Janke, M. Rorer, S. Winikoff,  A. Baker, E. Boardman, and J. Finlay - 2017

This dataset was collected to inform the Water, Sustainability and Climate Minnesota River Basin Observatory, and was supported by the National Science Foundation under Grant No. 1209402 Water, Sustainability and Climate (WSC) – Category 2, Collaborative: Climate and human dynamics as amplifiers of natural change: a framework for vulnerability assessment and mitigation planning

Competition between introduced Bradyrhizobium japonicum strains and indigenous bradyrhizobia in Minnesota organic farming systems
Abou-Shanab, R.A.I., M. Wongphatcharachai, C. Sheaffer, J.C. Orf, M. J. Sadowsky - Symbiosis, 2017

Organic farmers recognize the importance of rhizobial associations with legume plants to help meet N fertility and plant productivity needs. A field experiment was done at three organic fields in Minnesota to assess the effect of indigenous Bradyrhizobium japonicum ORGS3 and ORGS5 and reference USDA 110 strains on the growth and yield performance of soybean. 

Photochemical transformation of four ionic liquid cation structures in aqueous solution
Pati, S.G. and  W.A. Arnold - Environmental Science & Technology, 2017

Ionic liquids (ILs) are a new class of solvents expected to be used increasingly by the chemical industry in the coming years. Given their slow biodegradation and limited sorption affinities, IL cations have a high potential to reach aquatic environments. We investigated the fate of ILs in sunlit surface water by determining direct and indirect photochemical transformation rates of imidazolium, pyridinium, pyrrolidinium, and piperidinium cations.

Fecundity of a native herbivore on its native and exotic host plants and relationship to plant chemistry
Marko, M.D. and R.M. Newman - Aquatic Invasions, 2017

The host range expansion of the specialist milfoil weevil, Euhrychiopsis lecontei, from the native Myriophyllum sibiricum (northern watermilfoil) to invasive M. spicatum (Eurasian watermilfoil) is one of the few examples of a native insect herbivore preferring, growing and surviving better on a nonindigenous host plant than it does on its native host plant.

Infiltration Flux for Parallel Strip Water Sources
García-Serrana, M., J.L. Nieber and J.S. Gulliver - Vadose Zone Journal, 2017

The lateral component of flow and the infiltration from parallel strip sources of water on the soil surface were evaluated. Infiltration from such sources is two dimensional, having both a vertical and a lateral component.