Dr. Gwendolyn Lee Macpherson

Name:

Dr. Gwendolyn Lee Macpherson

Role:

Faculty Associate

Address:

120 Lindley Hall, Department of Geology; 1475 Jayhawk Blvd., University of Kansas

Lawrence, KS 66045

United States

Email:

Phone:

Fax:

Interest:

Low-temp aqueous-geochemistry, origin of formation waters, deep sedimentary basins, trace element origins, hydrogeology

Publication List:

Wen H, Sullivan PL, Macpherson GL, Li L. Effects of vegetation rooting characteristics on carbonate weathering and critical zone evolution. Earth and Planetary Science Letters. In Press;.

Wen H, Sullivan PL, Macpherson GL, Billings SA, Li L. Deepening roots can enhance carbonate weathering by amplifying CO2-rich recharge. Biogeosciences [Internet]. 2021;18:55-75. https://bg.copernicus.org/articles/18/55/2021/

Sullivan PL, Zhang C, Behm M, Zhang F, Macpherson GL. Towards a new conceptual model for groundwater flow in merokarst systems: Insights from multiple geophysical approaches. Hydrology and Earth System Science [Internet]. 2020;34(24):4697-4711. https://onlinelibrary.wiley.com/doi/abs/10.1002/hyp.13898

Macpherson GL, Sullivan PL. Dust, impure calcite, and phytoliths: modeled alternative sources of chemical weathering solutes in shallow groundwater. Chemical Geology [Internet]. 2019;527(20):118871. https://linkinghub.elsevier.com/retrieve/pii/S000925411830398X

Macpherson GL, Sullivan PL, Stotler RL, Norwood BS. Increasing groundwater CO2 in a midcontinent tallgrass prairie: Controlling factors. Chudaev O, Kharaka Y, Harmon R, Millot R, Shouakar-Stash O. E3S Web of Conferences [Internet]. 2019;98:06008. https://www.e3s-conferences.org/10.1051/e3sconf/20199806008

Rawitch MJ, Macpherson GL, Brookfield AE. Exploring methods of measuring CO2 degassing in headwater streams. Sustainable Water Resources Management [Internet]. 2019;5:1765–1779. https://link.springer.com/article/10.1007/s40899-019-00332-3

Macpherson GL, Sullivan PL. Watershed-scale chemical weathering in a merokarst terrain, northeastern Kansas, USA. Chemical Geology [Internet]. 2019;527(20):118988. https://www.sciencedirect.com/science/article/abs/pii/S0009254118305874?via%3Dihub

Sullivan PL, Stops MW, Macpherson GL, Li L, Hirmas DR, Dodds WK. How landscape heterogeneity governs stream water concentration-discharge behavior in carbonate terrains (Konza Prairie, USA). Chemical Geology [Internet]. 2019;527(20):118989. https://doi.org/10.1016/j.chemgeo.2018.12.002

Sullivan PL, Macpherson GL, Martin JB, Price RM. Evolution of carbonate and karst critical zones. Chemical Geology [Internet]. 2019;527(20):119223. https://linkinghub.elsevier.com/retrieve/pii/S0009254119303183

Vero SE, Macpherson GL, Sullivan PL, Brookfield AE, Nippert JB, Kirk MF, et al.. Developing a conceptual framework of landscape and hydrology on tallgrass prairie: A critical zone approach. Vadose Zone Journal [Internet]. 2018;17(1):1 - 11. https://dl.sciencesocieties.org/publications/vzj/pdfs/17/1/170069

Liu Z, Macpherson GL, Groves C, Martin JB, Yuan D, Zeng S. Large and active CO 2 uptake by coupled carbonate weathering. Earth-Science Reviews [Internet]. 2018;182:42 - 49. https://linkinghub.elsevier.com/retrieve/pii/S0012825217306153

Brookfield AE, Macpherson GL, Covington M. Effects of changing meteoric precipitation patterns on groundwater temperature in karst environments. Groundwater [Internet]. 2017;55(2):227-236. https://onlinelibrary.wiley.com/doi/abs/10.1111/gwat.12456

Rawitch MJ. Stream CO2 degassing: review of methods and laboratory validation of floating chambers [Internet]. [Lawrence, Kansas]: University of Kansas; 2016. https://kuscholarworks.ku.edu/bitstream/handle/1808/21889

Liu H. Inorganic and organic carbon variations in surface water, Konza Prairie LTER Site, USA, and Maolan Karst Experimental Site, China [Internet]. [Lawrence, KS]: University of Kansas; 2014. http://hdl.handle.net/1808/14546

Tsypin M, Macpherson GL. The effect of precipitation events on inorganic carbon in soil and shallow groundwater, Konza Prairie LTER Site, NE Kansas, USA. Applied Geochemistry [Internet]. 2012;27:2356 -2369. https://www.sciencedirect.com/science/article/pii/S0883292712001734?via%3Dihub

Steward DR, Yang X, Lauwo SY, Staggenborg SA, Macpherson GL, Welch SM. From precipitation to groundwater baseflow in a native prairie ecosystem: a regional study of the Konza LTER in the Flint Hills of Kansas, USA. Hydrology and Earth System Sciences [Internet]. 2011;15:3181 -3194. https://www.hydrol-earth-syst-sci.net/15/3181/2011/

Tsypin M. Dissolved inorganic carbon in soil and shallow groundwater, Konza Prairie LTER Site, NE Kansas, USA [Internet]. [Lawrence, KS]: University of Kansas; 2011. http://hdl.handle.net/1808/10386

Macpherson GL. Groundwater CO2: Is it responding to atmospheric CO2?. 2009. pp. 995 -998.

Macpherson GL. CO2 distribution in groundwater and the impact of groundwater extraction on the global C cycle. Chemical Geology [Internet]. 2009;264:328 -336. https://www.sciencedirect.com/science/article/abs/pii/S0009254109001399?via%3Dihub

Macpherson GL, Roberts JA, Blair JM, Townsend MA, Fowle DA, Beisner KR. Increasing shallow groundwater CO2 and limestone weathering, Konza Prairie, USA. Geochimica et Cosmochimica Acta [Internet]. 2008;72:5581 -5599. https://www.sciencedirect.com/science/article/pii/S001670370800536X?via%3Dihub

Johnson WC, Willey KL, Macpherson GL. Carbon isotope variation in modern soils of the tallgrass prairie:Analogues for the interpretation of isotopicrecords derived from paleosols. Quaternary International. 2007;162-163:3 -20.

Wood HK, Macpherson GL. Sources of Sr and implications for weathering of limestone under tallgrass prairie, northeastern Kansas. Applied Geochemistry. 2005;20:2325 -2342.

Macpherson GL. Field vs. lab pH in remote wells, Konza Prairie LTER site, and implications for limestone weathering. Saratoga Springs, New York: A. A. Balkema Publishers, New York; 2004. pp. 845 -848.

Macpherson GL, Sophocleous M. Fast ground-water mixing and basal recharge in an unconfined, alluvial aquifer, Konza LTER Site, Northeastern Kansas. Journal of Hydrology. 2004;286:271 -299.

Gray LJ, Macpherson GL, Koelliker JK, Dodds WK. Hydrology and aquatic chemistry. In: Knapp AK, Briggs JM, Hartnett DC, Collins SL. Grassland Dynamics: Long-Term Ecological Research in Tallgrass Prairie. New York: Oxford University Press; 1998. pp. 159 -176.

Macpherson GL. Nitrate loading of shallow ground water, prairie vs. cultivated land, northeastern Kansas, USA. Roterdam: A.A. Balkema; 1998. pp. 165 -168.

Macpherson GL, Jackson S. Trace elements in recent algal carbonate at the Konza LTER site, northeastern Kansas, determination by laser ablation microprobe (LAM) ICPMS. Geological Society of America. 1997;29:1 -175.

Macpherson GL. Hydrogeology of thin-bedded limestones: the Konza Prairie Long-Term Ecological Research site, Northeastern Kansas. Journal of Hydrology. 1996;186:191 -228.

Macpherson GL, Schulmeister MK. Source(s), fate and residence time of nitrate at two sites in Kansas--a comparison of carbonate and alluvial aquifers, Kansas Water Resources Research Institute Report, Contribution No. 312. 1994;:81 -.

Macpherson GL. Preliminary assessment of nitrate at two sites in Kansas-comparison of alluvial aquifer and fractured limestone, Kansas Water Resources Research Institute Report, Contribution No. 305. 1993;:39 -.

Macpherson GL. Ground-water chemistry under tallgrass prairie, Central Kansas, USA. Kharaka YK, Maest AS. 1992. pp. 809 -812.

Datasets

Datasets for Dr. Gwendolyn Lee Macpherson

AGW01 Long-term measurement of groundwater physical and chemical properties from wells on watershed N04D at Konza Prairie

AGW03 Konza Prairie Long-term high frequency groundwater level and temperature from wells on N04d