Designing amendments to improve plant performance for mine tailings revegetation
Abstract To provide recommendations for establishment of plants on low‐pH Formosa Mine tailings, two greenhouse experiments were conducted to evaluate the use of remedial amendments to improve the survival and growth of Douglas fir (Pseudotsuga menziesii) seedlings. A preliminary experiment indicate...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2023-09-01
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| Series: | Agrosystems, Geosciences & Environment |
| Online Access: | https://doi.org/10.1002/agg2.20409 |
| _version_ | 1797685286367395840 |
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| author | Mark G. Johnson David M. Olszyk Tamotsu Shiroyama Michael A. Bollman Maliha S. Nash Viola A. Manning Kristin M. Trippe Donald W. Watts Jeffrey M. Novak |
| author_facet | Mark G. Johnson David M. Olszyk Tamotsu Shiroyama Michael A. Bollman Maliha S. Nash Viola A. Manning Kristin M. Trippe Donald W. Watts Jeffrey M. Novak |
| author_sort | Mark G. Johnson |
| collection | DOAJ |
| description | Abstract To provide recommendations for establishment of plants on low‐pH Formosa Mine tailings, two greenhouse experiments were conducted to evaluate the use of remedial amendments to improve the survival and growth of Douglas fir (Pseudotsuga menziesii) seedlings. A preliminary experiment indicated that 1% lime (by weight) raised tailings pH, permitting seedling survival. However, high rates of biosolid application (BS; 2% by weight) added to supply nutrients were phytotoxic when added with lime. A gasified conifer biochar (BC) added to tailings at 1%, 2.5%, or 5% (by weight), along with lime and BS, caused an additional increase in pH, decreased electrical conductivity (EC), and tended to increase the survival of Douglas fir. The addition of a locally sourced microbial inoculum (LSM) did not affect survival. A subsequent experiment expanded our experimental design by testing multiple levels of amendments that included lime (0.5% and 1% by weight), three application rates (0.2%, 0.5%, and 2%) of two nutrient sources (BS or mineral fertilizer), BC (0% and 2.5%), and with or without LSM. There were many interactions among amendments. In general, Douglas fir survival was enhanced when lime and BC were added. These experiments suggest that amending with lime, a nutrient source, and BC would enhance revegetation on low‐pH, metal‐contaminated mine tailings. |
| first_indexed | 2024-03-12T00:42:00Z |
| format | Article |
| id | doaj.art-2f27ab6c2c2244e29270c6f1fc888fb8 |
| institution | Directory Open Access Journal |
| issn | 2639-6696 |
| language | English |
| last_indexed | 2024-03-12T00:42:00Z |
| publishDate | 2023-09-01 |
| publisher | Wiley |
| record_format | Article |
| series | Agrosystems, Geosciences & Environment |
| spelling | doaj.art-2f27ab6c2c2244e29270c6f1fc888fb82023-09-15T04:28:42ZengWileyAgrosystems, Geosciences & Environment2639-66962023-09-0163n/an/a10.1002/agg2.20409Designing amendments to improve plant performance for mine tailings revegetationMark G. Johnson0David M. Olszyk1Tamotsu Shiroyama2Michael A. Bollman3Maliha S. Nash4Viola A. Manning5Kristin M. Trippe6Donald W. Watts7Jeffrey M. Novak8U.S. Environmental Protection Agency, Pacific Ecological Systems Division, Center for Public Health and Environmental Assessment Corvallis Oregon USAU.S. Environmental Protection Agency, Pacific Ecological Systems Division, Center for Public Health and Environmental Assessment Corvallis Oregon USANational Asian Pacific Center on Aging Senior Environmental Employment Program Corvallis Oregon USAU.S. Environmental Protection Agency, Pacific Ecological Systems Division, Center for Public Health and Environmental Assessment Corvallis Oregon USAU.S. Environmental Protection Agency, Pacific Ecological Systems Division, Center for Public Health and Environmental Assessment Newport Oregon USAUSDA ARS, National Forage Seed Production Research Center Corvallis Oregon USAUSDA ARS, National Forage Seed Production Research Center Corvallis Oregon USAUSDA ARS, Coastal Plain Soil, Water and Plant Conservation Research Florence South Carolina USAUSDA ARS, Coastal Plain Soil, Water and Plant Conservation Research Florence South Carolina USAAbstract To provide recommendations for establishment of plants on low‐pH Formosa Mine tailings, two greenhouse experiments were conducted to evaluate the use of remedial amendments to improve the survival and growth of Douglas fir (Pseudotsuga menziesii) seedlings. A preliminary experiment indicated that 1% lime (by weight) raised tailings pH, permitting seedling survival. However, high rates of biosolid application (BS; 2% by weight) added to supply nutrients were phytotoxic when added with lime. A gasified conifer biochar (BC) added to tailings at 1%, 2.5%, or 5% (by weight), along with lime and BS, caused an additional increase in pH, decreased electrical conductivity (EC), and tended to increase the survival of Douglas fir. The addition of a locally sourced microbial inoculum (LSM) did not affect survival. A subsequent experiment expanded our experimental design by testing multiple levels of amendments that included lime (0.5% and 1% by weight), three application rates (0.2%, 0.5%, and 2%) of two nutrient sources (BS or mineral fertilizer), BC (0% and 2.5%), and with or without LSM. There were many interactions among amendments. In general, Douglas fir survival was enhanced when lime and BC were added. These experiments suggest that amending with lime, a nutrient source, and BC would enhance revegetation on low‐pH, metal‐contaminated mine tailings.https://doi.org/10.1002/agg2.20409 |
| spellingShingle | Mark G. Johnson David M. Olszyk Tamotsu Shiroyama Michael A. Bollman Maliha S. Nash Viola A. Manning Kristin M. Trippe Donald W. Watts Jeffrey M. Novak Designing amendments to improve plant performance for mine tailings revegetation Agrosystems, Geosciences & Environment |
| title | Designing amendments to improve plant performance for mine tailings revegetation |
| title_full | Designing amendments to improve plant performance for mine tailings revegetation |
| title_fullStr | Designing amendments to improve plant performance for mine tailings revegetation |
| title_full_unstemmed | Designing amendments to improve plant performance for mine tailings revegetation |
| title_short | Designing amendments to improve plant performance for mine tailings revegetation |
| title_sort | designing amendments to improve plant performance for mine tailings revegetation |
| url | https://doi.org/10.1002/agg2.20409 |
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