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Patrick J. Drohan

Pennsylvania State University

University Park, PA

United States

  • Pennsylvania State University

SCHOLARLY PAPERS

5

DOWNLOADS

257

TOTAL CITATIONS

0

Scholarly Papers (5)

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1.

Unmanned Aerial Vehicle Photogrammetry for Mapping Hydrologically Sensitive and Phosphorus Critical Source Areas

Number of pages: 35 Posted: 02 Dec 2025
Jhony Armando Benavides-Bolaños, Daniel Guarín, Patrick J. Drohan, Dimitrios Bolkas and Alejandro Perez-Y-Soto-Dominguez
Universidad del Valle, affiliation not provided to SSRN, Pennsylvania State University, affiliation not provided to SSRN and affiliation not provided to SSRN
Downloads 81 (809,932)

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groecosystems, eutrophication, Hydrology, pollution

2.

Accumulation of Cadmium in Soils, Litter and Leaves in Cacao Farms in the North Sierra Nevada De Santa Marta, Colombia

Number of pages: 58 Posted: 03 Nov 2023
Daniel Guarín, Javier M. Martín-López, Zamir Libohova, Jhony Benavides-Bolaños, Siela Maximova, Mark Guiltinan, John T. Spargo, Mayesse da Silva, Alejandro Fernandez and Patrick J. Drohan
affiliation not provided to SSRN, affiliation not provided to SSRN, Government of the United States of America - US Department of Agriculture, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Pennsylvania State University, affiliation not provided to SSRN, University of Minnesota - Twin Cities and Pennsylvania State University
Downloads 71 (875,328)

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Theobroma cacao, Cadmium, Cd biocycling, Cd bioaccumulation, Geogenic Cd, Anthropogenic Cd

3.

Temporal Dynamics of Understory Assemblages and Implications for Northern Hardwood Seedling Recruitment

Number of pages: 40 Posted: 11 Sep 2025
Nicole R. Palmer, Marc McDill, Justin R. Zweck, Duane R. Diefenbach, Danielle B. Begley-Miller, Patrick J. Drohan, Christopher S. Rosenberry, Emily J. Domoto, Bret D. Wallingford, Chyvonne M. Rhoads, Jacob Trowbridge and Autumn E. Sabo
affiliation not provided to SSRN, Pennsylvania State University, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Pennsylvania State University, Pennsylvania Game Commission, affiliation not provided to SSRN, Pennsylvania Game Commission, affiliation not provided to SSRN, affiliation not provided to SSRN and affiliation not provided to SSRN
Downloads 40 (1,196,171)

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Understory, regeneration, classification, community, Pennsylvania

4.

Microplastic Polymer Accumulation, Distribution, and Toxicity in Sediment of a Freshwater Tidal Marsh

Number of pages: 92 Posted: 13 Jun 2025
Nathaniel R. Warner, Jutamas Bussarakum, Patrick J. Drohan, Raymond Najjar, Jill Arriola and Lisa Emili
Pennsylvania State University, Pennsylvania State University, Pennsylvania State University, Pennsylvania State University, Pennsylvania State University and Pennsylvania State University
Downloads 36 (1,277,121)

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plastic, Microplastics, polypropylene, estuary, tidal marsh, Ecological risk

5.

Water Quality Benefits of Weather-Based Manure Application Timing and Manure Placement Strategie

Number of pages: 34 Posted: 14 Oct 2022
Arghajeet Saha, Cibin Raj, Tamie L. Veith, Charles M. White and Patrick J. Drohan
Pennsylvania State University, Pennsylvania State University, Government of the United States of America - Agricultural Research Service, Pennsylvania State University and Pennsylvania State University
Downloads 29 (1,332,057)

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Manure application timing, winter closure, manure incorporation, SWAT, non-point source pollution, Susquehanna River Basin, Chesapeake Bay watershed