High rock content enhances plant resistance to drought in saline topsoils
Successful mine site restoration in semi-arid regions is limited by availability of topsoil and water, and saline soils are a common feature of these regions and pose an additional stressor to vegetation establishment. We tested the growth and development of a salt-tolerant species on saline topsoil...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Language: | English |
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ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
2021
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| Subjects: | |
| Online Access: | http://purl.org/au-research/grants/arc/IC150100041 http://hdl.handle.net/20.500.11937/87130 |
| _version_ | 1848764898263171072 |
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| author | Lison, Christine Cross, Adam Stevens, Jason Valliere, Justin Dixon, Kingsley Veneklaas, Erik |
| author_facet | Lison, Christine Cross, Adam Stevens, Jason Valliere, Justin Dixon, Kingsley Veneklaas, Erik |
| author_sort | Lison, Christine |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Successful mine site restoration in semi-arid regions is limited by availability of topsoil and water, and saline soils are a common feature of these regions and pose an additional stressor to vegetation establishment. We tested the growth and development of a salt-tolerant species on saline topsoil incorporating 25%, 50%, 75% and 88% waste rock, examining soil water content and plant water use to determine how waste rock content affected plant-water relations, growth and development. Under well-watered conditions higher percentages of waste rock lowered the volumetric water content of the total soil mix, causing a reduction in stomatal conductance. Under drought conditions, higher waste rock content reduced rates of water loss and allowed stomatal conductance to be maintained over a longer period. There was no significant or optimal relationship between waste rock content and plant growth, indicating that the addition of waste rock to topsoil has complex effects on plant-water relations and growth. We demonstrate that augmentation of limited topsoil resources with waste rock is a promising option for improving plant resistance to drought in mine site restoration. |
| first_indexed | 2025-11-14T11:26:40Z |
| format | Journal Article |
| id | curtin-20.500.11937-87130 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:26:40Z |
| publishDate | 2021 |
| publisher | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-871302023-07-20T02:42:46Z High rock content enhances plant resistance to drought in saline topsoils Lison, Christine Cross, Adam Stevens, Jason Valliere, Justin Dixon, Kingsley Veneklaas, Erik Science & Technology Life Sciences & Biomedicine Ecology Environmental Sciences Environmental Sciences & Ecology Drought stress Mine restoration Plant water use Plant growth Salinity Topsoil Waste rock WATER-RETENTION SOIL-SALINITY FRAGMENTS BIOMASS STORAGE IMPACT GROWTH Successful mine site restoration in semi-arid regions is limited by availability of topsoil and water, and saline soils are a common feature of these regions and pose an additional stressor to vegetation establishment. We tested the growth and development of a salt-tolerant species on saline topsoil incorporating 25%, 50%, 75% and 88% waste rock, examining soil water content and plant water use to determine how waste rock content affected plant-water relations, growth and development. Under well-watered conditions higher percentages of waste rock lowered the volumetric water content of the total soil mix, causing a reduction in stomatal conductance. Under drought conditions, higher waste rock content reduced rates of water loss and allowed stomatal conductance to be maintained over a longer period. There was no significant or optimal relationship between waste rock content and plant growth, indicating that the addition of waste rock to topsoil has complex effects on plant-water relations and growth. We demonstrate that augmentation of limited topsoil resources with waste rock is a promising option for improving plant resistance to drought in mine site restoration. 2021 Journal Article http://hdl.handle.net/20.500.11937/87130 10.1016/j.jaridenv.2021.104589 English http://purl.org/au-research/grants/arc/IC150100041 http://creativecommons.org/licenses/by-nc-nd/4.0/ ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD fulltext |
| spellingShingle | Science & Technology Life Sciences & Biomedicine Ecology Environmental Sciences Environmental Sciences & Ecology Drought stress Mine restoration Plant water use Plant growth Salinity Topsoil Waste rock WATER-RETENTION SOIL-SALINITY FRAGMENTS BIOMASS STORAGE IMPACT GROWTH Lison, Christine Cross, Adam Stevens, Jason Valliere, Justin Dixon, Kingsley Veneklaas, Erik High rock content enhances plant resistance to drought in saline topsoils |
| title | High rock content enhances plant resistance to drought in saline topsoils |
| title_full | High rock content enhances plant resistance to drought in saline topsoils |
| title_fullStr | High rock content enhances plant resistance to drought in saline topsoils |
| title_full_unstemmed | High rock content enhances plant resistance to drought in saline topsoils |
| title_short | High rock content enhances plant resistance to drought in saline topsoils |
| title_sort | high rock content enhances plant resistance to drought in saline topsoils |
| topic | Science & Technology Life Sciences & Biomedicine Ecology Environmental Sciences Environmental Sciences & Ecology Drought stress Mine restoration Plant water use Plant growth Salinity Topsoil Waste rock WATER-RETENTION SOIL-SALINITY FRAGMENTS BIOMASS STORAGE IMPACT GROWTH |
| url | http://purl.org/au-research/grants/arc/IC150100041 http://hdl.handle.net/20.500.11937/87130 |