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Effects of a forested state park on stream dissolved organic carbon and total suspended solid concentrations in an agriculturally dominated watershed in SW Ohio

Rintsch, Eileen Tabata
http://orcid.org/0000-0003-0409-932X
http://rave.ohiolink.edu/etdc/view?acc_num=miami1626962623587062

Abstract Details

2021, Master of Arts, Miami University, Geography.
Previous research has indicated that agricultural land-use often reduces water quality in streams. This includes: 1) an increase in total suspended solids (TSS) due to elevated soil erosion and 2) changes in dissolved organic carbon (DOC) concentrations. The goal of this study is to determine if a forested state park can mitigate these potentially negative impacts. This study examines spatial and temporal dynamics of TSS and DOC in four streams, located in an agriculturally impacted watershed in SW Ohio, as they flow from agricultural land-cover through a naturally forested state park. Eight surface water sites were sampled bimonthly over a one-year period from December 2019 to December 2020. Each water sample was processed to quantify concentrations of TSS and DOC. In addition to examining the impact of land use, this study also examined the effect of discharge and the normalized difference vegetation index (NDVI) on changes to TSS and DOC concentrations. A significant increase in TSS concentrations was found within the state park. The changes in TSS concentrations were not significantly related to stream discharge nor NDVI. A significant decrease in DOC concentrations was found in two streams within the state park. Discharge was negatively correlated with changes in DOC concentrations in three of four streams. The results suggest that small streams in the U.S. Midwest are able to reduce fluvial DOC concentrations in agricultural watersheds within naturally forested areas. Further research is needed to determine why TSS concentrations increased within the forested state park.
Bartosz Grudzinski (Advisor)
Jessica McCarty (Committee Member)
Fadel Megahed (Committee Member)
Michael Vanni (Committee Member)
46 p.
Geography; Geomorphology; Hydrology
dissolved organic carbon; DOC; total suspended solid; TSS; stream water quality; land cover; concentration changes

Recommended Citations

Citations

  • Rintsch, E. T. (2021). Effects of a forested state park on stream dissolved organic carbon and total suspended solid concentrations in an agriculturally dominated watershed in SW Ohio [Master's thesis, Miami University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=miami1626962623587062

    APA Style (7th edition)

  • Rintsch, Eileen. Effects of a forested state park on stream dissolved organic carbon and total suspended solid concentrations in an agriculturally dominated watershed in SW Ohio. 2021. Miami University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=miami1626962623587062.

    MLA Style (8th edition)

  • Rintsch, Eileen. "Effects of a forested state park on stream dissolved organic carbon and total suspended solid concentrations in an agriculturally dominated watershed in SW Ohio." Master's thesis, Miami University, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=miami1626962623587062

    Chicago Manual of Style (17th edition)

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This open access ETD is published by Miami University and OhioLINK.