Assessment of Miscanthus Yield Potential from Strip-Mined Lands (SML) and Its Impacts on Stream Water Quality
Strip-mined land (SML) disturbed by coal mining is a non-crop land resource that can be utilized to cultivate high-yielding energy crops such as miscanthus for bioenergy applications. However, the biomass yield potential, annual availability, and environmental impacts of growing energy crops in SML...
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MDPI AG
2019-03-01
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| Series: | Water |
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| Online Access: | http://www.mdpi.com/2073-4441/11/3/546 |
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| author | Kamalakanta Sahoo Adam M. Milewski Sudhagar Mani Nahal Hoghooghi Sudhanshu Sekhar Panda |
| author_facet | Kamalakanta Sahoo Adam M. Milewski Sudhagar Mani Nahal Hoghooghi Sudhanshu Sekhar Panda |
| author_sort | Kamalakanta Sahoo |
| collection | DOAJ |
| description | Strip-mined land (SML) disturbed by coal mining is a non-crop land resource that can be utilized to cultivate high-yielding energy crops such as miscanthus for bioenergy applications. However, the biomass yield potential, annual availability, and environmental impacts of growing energy crops in SML are less understood. In this study, we estimated the yield potential of miscanthus (Miscanthus sinensis) in SML and its environmental impacts on local streams using the Soil and Water Assessment Tool (SWAT). After calibration and validation of the SWAT model, the results demonstrated that miscanthus yield potentials were 2.6 (0.8−5.53), 10.0 (1.3−16.0), and 16.0 (1.34−26.0) Mg ha−1 with fertilizer application rates of 0, 100, and 200 kg-N ha−1, respectively. Furthermore, cultivation of miscanthus in SML has the potential to reduce sediment (~20%) and nitrate (2.5−10.0%) loads reaching water streams, with a marginal increase in phosphorus load. The available SML in the United States could produce about 10 to 16 dry Tg of biomass per year without negatively impacting the water quality. In conclusion, SML can provide a unique opportunity to produce biomass for bioenergy applications, while improving stream water quality in a highly dense mining area (the Appalachian region) in the United States. |
| first_indexed | 2024-04-13T11:43:15Z |
| format | Article |
| id | doaj.art-da12ea98381f4701ba5befda51c8ac0f |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-04-13T11:43:15Z |
| publishDate | 2019-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-da12ea98381f4701ba5befda51c8ac0f2022-12-22T02:48:15ZengMDPI AGWater2073-44412019-03-0111354610.3390/w11030546w11030546Assessment of Miscanthus Yield Potential from Strip-Mined Lands (SML) and Its Impacts on Stream Water QualityKamalakanta Sahoo0Adam M. Milewski1Sudhagar Mani2Nahal Hoghooghi3Sudhanshu Sekhar Panda4School of Chemical, Materials and Biomedical Engineering, University of Georgia, Athens, GA 30602, USADepartment of Geology, University of Georgia, Water Resources and Remote Sensing Laboratory (WRRSL), Athens, GA 30602, USASchool of Chemical, Materials and Biomedical Engineering, University of Georgia, Athens, GA 30602, USASchool of Environmental, Civil, Agricultural, and Mechanical Engineering, University of Georgia, Athens, GA 30602, USAInstitute of Environmental Spatial Analysis, University of North Georgia, Oakwood, GA 30566, USAStrip-mined land (SML) disturbed by coal mining is a non-crop land resource that can be utilized to cultivate high-yielding energy crops such as miscanthus for bioenergy applications. However, the biomass yield potential, annual availability, and environmental impacts of growing energy crops in SML are less understood. In this study, we estimated the yield potential of miscanthus (Miscanthus sinensis) in SML and its environmental impacts on local streams using the Soil and Water Assessment Tool (SWAT). After calibration and validation of the SWAT model, the results demonstrated that miscanthus yield potentials were 2.6 (0.8−5.53), 10.0 (1.3−16.0), and 16.0 (1.34−26.0) Mg ha−1 with fertilizer application rates of 0, 100, and 200 kg-N ha−1, respectively. Furthermore, cultivation of miscanthus in SML has the potential to reduce sediment (~20%) and nitrate (2.5−10.0%) loads reaching water streams, with a marginal increase in phosphorus load. The available SML in the United States could produce about 10 to 16 dry Tg of biomass per year without negatively impacting the water quality. In conclusion, SML can provide a unique opportunity to produce biomass for bioenergy applications, while improving stream water quality in a highly dense mining area (the Appalachian region) in the United States.http://www.mdpi.com/2073-4441/11/3/546strip-mined landbioenergybiomassenergy cropmiscanthusSWAT modelSWAT-CUPrunoffnutrientsand water quality |
| spellingShingle | Kamalakanta Sahoo Adam M. Milewski Sudhagar Mani Nahal Hoghooghi Sudhanshu Sekhar Panda Assessment of Miscanthus Yield Potential from Strip-Mined Lands (SML) and Its Impacts on Stream Water Quality Water strip-mined land bioenergy biomass energy crop miscanthus SWAT model SWAT-CUP runoff nutrients and water quality |
| title | Assessment of Miscanthus Yield Potential from Strip-Mined Lands (SML) and Its Impacts on Stream Water Quality |
| title_full | Assessment of Miscanthus Yield Potential from Strip-Mined Lands (SML) and Its Impacts on Stream Water Quality |
| title_fullStr | Assessment of Miscanthus Yield Potential from Strip-Mined Lands (SML) and Its Impacts on Stream Water Quality |
| title_full_unstemmed | Assessment of Miscanthus Yield Potential from Strip-Mined Lands (SML) and Its Impacts on Stream Water Quality |
| title_short | Assessment of Miscanthus Yield Potential from Strip-Mined Lands (SML) and Its Impacts on Stream Water Quality |
| title_sort | assessment of miscanthus yield potential from strip mined lands sml and its impacts on stream water quality |
| topic | strip-mined land bioenergy biomass energy crop miscanthus SWAT model SWAT-CUP runoff nutrients and water quality |
| url | http://www.mdpi.com/2073-4441/11/3/546 |
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