Revegetation in abandoned quarries with landfill stabilized waste and gravels: water dynamics and plant growth – a case study
Large amounts of quarry wastes are produced during quarrying. Though quarry wastes are commonly used in pavement construction and concrete production, in situ utilization during ecological restoration of abandoned quarries has the advantage of simplicity. In this paper, rock fragments 2–3 cm in...
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2017-11-01
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| Series: | Solid Earth |
| Online Access: | https://www.solid-earth.net/8/1131/2017/se-8-1131-2017.pdf |
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| author | C.-L. Zhang C.-L. Zhang J.-J. Feng J.-J. Feng J.-J. Feng L.-M. Rong T.-N. Zhao |
| author_facet | C.-L. Zhang C.-L. Zhang J.-J. Feng J.-J. Feng J.-J. Feng L.-M. Rong T.-N. Zhao |
| author_sort | C.-L. Zhang |
| collection | DOAJ |
| description | Large
amounts of quarry wastes are produced during quarrying. Though quarry wastes
are commonly used in pavement construction and concrete production, in situ
utilization during ecological restoration of abandoned quarries has the
advantage of simplicity. In this paper, rock fragments 2–3 cm in size were
mixed with landfill stabilized waste (LSW) in different proportions
(LSW : gravel, <i>R</i><sub>L</sub>), which was called LGM. The water content,
runoff and plant growth under natural precipitation were monitored for
2 years using a runoff plot experiment. LGM with a low fraction of LSW was
compacted to different degrees to achieve an appropriate porosity; water
dynamics and plant growth of compacted LGM were studied in a field
experiment. The results showed the following: (1) LGM can be used during
restoration in abandoned quarries as growing material for plants.
(2) <i>R</i><sub>L</sub> had a significant effect on the infiltration and
water-holding capacity of LGM and thus influenced the retention of
precipitation, water condition and plant growth. LGM with <i>R</i><sub>L</sub>
ranging from 8:1 to 3:7 was suitable for plant growth, and the target
species grew best when <i>R</i><sub>L</sub> was 5:5. (3) Compaction significantly
enhanced water content of LGM with a low <i>R</i><sub>L</sub> of 2:8, but leaf
water content of plants was lower or unchanged in the more compacted plots.
Moderate compaction was beneficial to the survival and growth of
<i>Robinia pseudoacacia</i> L. <i>Platycladus orientalis</i> (L.) Franco
and <i>Medicago sativa</i> L. were not significantly affected by
compaction, and they grew better under a high degree of compaction, which was
disadvantageous for the uppermost layer of vegetation. |
| first_indexed | 2024-04-13T19:07:17Z |
| format | Article |
| id | doaj.art-b7490f2a181b47b5b0996a486324c1f9 |
| institution | Directory Open Access Journal |
| issn | 1869-9510 1869-9529 |
| language | English |
| last_indexed | 2024-04-13T19:07:17Z |
| publishDate | 2017-11-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Solid Earth |
| spelling | doaj.art-b7490f2a181b47b5b0996a486324c1f92022-12-22T02:33:57ZengCopernicus PublicationsSolid Earth1869-95101869-95292017-11-0181131113910.5194/se-8-1131-2017Revegetation in abandoned quarries with landfill stabilized waste and gravels: water dynamics and plant growth – a case studyC.-L. Zhang0C.-L. Zhang1J.-J. Feng2J.-J. Feng3J.-J. Feng4L.-M. Rong5T.-N. Zhao6Beijing Key Lab of Industrial Land Contamination and Remediation, Environmental Protection Research Institute of Light Industry, 100089, Beijing, ChinaThese authors contributed equally to this work.School of Soil and Water Conservation, Beijing Forestry University, 100083, Beijing, ChinaSchool of Environmental Science and Engineering, Shanghai Jiao Tong University, 200240 Shanghai, ChinaThese authors contributed equally to this work.Beijing Key Lab of Industrial Land Contamination and Remediation, Environmental Protection Research Institute of Light Industry, 100089, Beijing, ChinaSchool of Soil and Water Conservation, Beijing Forestry University, 100083, Beijing, ChinaLarge amounts of quarry wastes are produced during quarrying. Though quarry wastes are commonly used in pavement construction and concrete production, in situ utilization during ecological restoration of abandoned quarries has the advantage of simplicity. In this paper, rock fragments 2–3 cm in size were mixed with landfill stabilized waste (LSW) in different proportions (LSW : gravel, <i>R</i><sub>L</sub>), which was called LGM. The water content, runoff and plant growth under natural precipitation were monitored for 2 years using a runoff plot experiment. LGM with a low fraction of LSW was compacted to different degrees to achieve an appropriate porosity; water dynamics and plant growth of compacted LGM were studied in a field experiment. The results showed the following: (1) LGM can be used during restoration in abandoned quarries as growing material for plants. (2) <i>R</i><sub>L</sub> had a significant effect on the infiltration and water-holding capacity of LGM and thus influenced the retention of precipitation, water condition and plant growth. LGM with <i>R</i><sub>L</sub> ranging from 8:1 to 3:7 was suitable for plant growth, and the target species grew best when <i>R</i><sub>L</sub> was 5:5. (3) Compaction significantly enhanced water content of LGM with a low <i>R</i><sub>L</sub> of 2:8, but leaf water content of plants was lower or unchanged in the more compacted plots. Moderate compaction was beneficial to the survival and growth of <i>Robinia pseudoacacia</i> L. <i>Platycladus orientalis</i> (L.) Franco and <i>Medicago sativa</i> L. were not significantly affected by compaction, and they grew better under a high degree of compaction, which was disadvantageous for the uppermost layer of vegetation.https://www.solid-earth.net/8/1131/2017/se-8-1131-2017.pdf |
| spellingShingle | C.-L. Zhang C.-L. Zhang J.-J. Feng J.-J. Feng J.-J. Feng L.-M. Rong T.-N. Zhao Revegetation in abandoned quarries with landfill stabilized waste and gravels: water dynamics and plant growth – a case study Solid Earth |
| title | Revegetation in abandoned quarries with landfill stabilized waste and gravels: water dynamics and plant growth – a case study |
| title_full | Revegetation in abandoned quarries with landfill stabilized waste and gravels: water dynamics and plant growth – a case study |
| title_fullStr | Revegetation in abandoned quarries with landfill stabilized waste and gravels: water dynamics and plant growth – a case study |
| title_full_unstemmed | Revegetation in abandoned quarries with landfill stabilized waste and gravels: water dynamics and plant growth – a case study |
| title_short | Revegetation in abandoned quarries with landfill stabilized waste and gravels: water dynamics and plant growth – a case study |
| title_sort | revegetation in abandoned quarries with landfill stabilized waste and gravels water dynamics and plant growth a case study |
| url | https://www.solid-earth.net/8/1131/2017/se-8-1131-2017.pdf |
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