Revitalizing contaminated lands: A state-of-the-art review on the remediation of mine-tailings using phytoremediation and genomic approaches

Chemosphere, Journal Year: 2024, Volume and Issue: 356, P. 141889 - 141889

Published: April 5, 2024

Language: Английский

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Cyanobacteria inoculation enhances carbon sequestration in soil substrates used in dryland restoration

The Science of The Total Environment, Journal Year: 2018, Volume and Issue: 636, P. 1149 - 1154

Published: May 4, 2018

Language: Английский

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Anticipatory natural resource science and management for a changing future

Frontiers in Ecology and the Environment, Journal Year: 2018, Volume and Issue: 16(5), P. 295 - 303

Published: May 7, 2018

Prolonged shifts in long‐term average climate conditions and increasing variability short‐term weather affect ecological processes, represent a fundamental challenge for natural resource management. Recent forthcoming advances predictability may offer novel opportunities, but capitalizing on these opportunities will require focusing scientific research understanding the links between responses over multiple timescales, fostering programmatic among science management agencies, developing new flexible decision‐making frameworks. Anticipating short‐ to near‐term can help managers mitigate land degradation driven by unfavorable promote actions that make most of favorable conditions. Similarly, anticipating long‐term, multidecadal trajectories identify those species communities are likely remain viable throughout 21st century. A focus “anticipatory management” could substantially bolster planning investment widespread adoption.

Language: Английский

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Benefits of adopting seed-based technologies for rehabilitation in the mining sector: a Pilbara perspective

Australian Journal of Botany, Journal Year: 2017, Volume and Issue: 65(8), P. 646 - 646

Published: Jan. 1, 2017

The use of native plant seeds is fundamental to large-scale rehabilitation and the re-establishment self-sustaining ecosystems after high-impact mining activity has ceased. However, many biological attributes are often overlooked in programs. Multi-disciplinary, long-term research collaborations required improve seed-based mine rehabilitation. In this paper, we review steps that BHP Western Australia Iron Ore (WAIO), a large iron ore company operates Pilbara bioregion north-west Australia, taken over past 9 years ensure continuous improvement procedures. We introduce activities WAIO undertake Pilbara, emphasise specific examples how findings have led incremental improvements seed management cycle, growth media practices. Specifically, outline implementation structured collection storage programs created capacity maintain high-quality stocks sufficient for 3–5 future Research documented prevalence dormancy flora (>70% 105 species examined produce dormant seeds), with physical physiological classes most commonly encountered. discuss development seed-treatments such as optimised wet-heat dry after-ripening increased germination previously batches. addition, highlight enhancement technologies, hydro-priming smoke-derived stimulants polymer coating, greater understanding limitations present growing environment, vastly improved seedling emergence performance under field conditions key framework Triodia species. Ongoing industry support (e.g. construction purpose-built rain manipulation shelter) ensured will continue unpack resolve complex challenges associated regeneration biodiverse communities mining.

Language: Английский

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Effects of indigenous soil cyanobacteria on seed germination and seedling growth of arid species used in restoration

Plant and Soil, Journal Year: 2018, Volume and Issue: 429(1-2), P. 91 - 100

Published: March 27, 2018

Language: Английский

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Increasing the germination envelope under water stress improves seedling emergence in two dominant grass species across different pulse rainfall events

Journal of Applied Ecology, Journal Year: 2016, Volume and Issue: 54(3), P. 997 - 1007

Published: Oct. 14, 2016

Summary Demographic recruitment processes, such as seed germination and seedling emergence, are critical transitional phases to the re‐establishment of degraded plant populations, but often fail due rainfall not supporting requirements. Using species from widespread arid Australian perennial grass genus Triodia , we investigated interactions seeds in different dormancy states their functional envelope response water stress after simulated pulse events. Seed was alleviated varying degrees by wet/dry cycling or removing floret structures seeds. The were then exposed frequency quantity events mimicking 25th, median, 75th 95th percentile found natural habitats for study north‐west zone. Under conditions highest, still limited 35% 10% emergence cleaned (i.e. least dormant state evaluated). This related indicated more negative base potential thresholds (Ψ b50 ) (≥ −0·33 MP a) compared intact florets −0·26 a). As a result, maximum cumulative time where soil potentials optimal ≥ Ψ 1·6–2·6 times longer large frequent when florets. Furthermore, dormancy, that usually prolongs survival, linked short‐term reduction viability, which may further reduce rates. Synthesis applications . Our findings indicate raised above important successful establishment. If bottlenecks result variable species, this shows benefits alleviating prior seeding restoration sites, increases environmental germination.

Language: Английский

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Direct seeding and outplantings in drylands of Argentinean Patagonia: estimated costs, and prospects for large‐scale restoration and rehabilitation

Restoration Ecology, Journal Year: 2019, Volume and Issue: 27(5), P. 1105 - 1116

Published: May 2, 2019

In large areas of the world that are deeply scarred by desertification and hampered low capacity for natural regeneration, scaling up ecological restoration rehabilitation can be achieved only if it is in cost with high return on investment, shows promise providing long‐lasting social‐economic as well benefits. Monte Austral region Patagonia Argentina, concerted efforts underway to facilitate practices. Here, we evaluate financial costs preliminary results direct seeding compared outplanting nursery‐grown seedlings three native species ( Atriplex lampa , Senecio subulatus var. subulatus, Hyalis argentea latisquama ) considered high‐priority dryland framework species. Comparative success expressed terms plant survival monetary terms. The candidate showed rates, ranging from 4.3 22.3%, after first summer following seeding. contrast, rates planted same taxa varied between 84 91%, reintroduction. However, 1,693 1,772 US$ less per hectare, is, 64% than nursery seedlings. Therefore, search ways scale drylands, should receive more attention. We discuss social perspectives way forward techniques Patagonia. also consider how could reduced effectiveness improved large‐scale efforts.

Language: Английский

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Bio‐priming seeds with cyanobacteria: effects on native plant growth and soil properties

Restoration Ecology, Journal Year: 2019, Volume and Issue: 28(S2)

Published: Sept. 16, 2019

Cyanobacteria are photosynthetic bacteria that form a fundamental part of soil biocrusts, enhance function and structure, can promote plant growth. We assessed the potential cyanobacteria as seed bio‐primer for mine‐site restoration in an arid region Western Australia, examining its effects on native growth characteristics mine substrates used dryland restoration. strains indigenous to study ( Leptolyngbya sp., Microcoleus Nostoc Scytonema sp.) were create inoculant. Seeds seven species bio‐primed with inoculant, their germination laboratory experiment. Seedling after bio‐priming was glasshouse experiment subset three species, two different (topsoil waste). Soil properties related function, e.g. total organic carbon, nitrogen, microbial activity, also measured. Minor recorded only significantly higher rates reported E. gamophylla . parameters generally topsoil than waste, regardless treatment. However, resulted seedlings four producing longer radicles and/or shoots. For example, seedling root lengths G. wickhamii 57% larger control treatment (30.1 ± 4.3 13.0 1.6 mm, respectively); shoots T. wiseana 54% (18.6 mm) compared (8.53 1.4 mm). Overall, our results highlight may improve some commonly

Language: Английский

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Reconditioning Degraded Mine Site Soils With Exogenous Soil Microbes: Plant Fitness and Soil Microbiome Outcomes

Frontiers in Microbiology, Journal Year: 2019, Volume and Issue: 10

Published: July 10, 2019

Mining of mineral resources substantially alters both the above and below-ground soil ecosystem, which then requires rehabilitation back to a pre-mining state. For belowground rehabilitation, recovery microbiome state can support key biogeochemical cycles effective plant colonization is usually required. One solution proposed has been translate microbial inocula from agricultural systems mine scenarios, as means reconditioning for planting. Here, we experimentally determine aboveground fitness outcomes effects commercially available (SMI). We analyzed treatment at four levels complexity; no SMI addition control, Nitrogen alone, plus over 12-week period. Our culture-independent analyses indicated that SMIs had differential response incubation period, where only small number consortium members persisted in semi-arid ecosystem generated variable responses, likely due plant-microbiome physiological mismatching low survival rates many constituents. suggest new developments custom-made increase success site restoration are required, primarily based upon need be ecologically adapted prevailing edaphic conditions wide range species encountered.

Language: Английский

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RestoreNet: An emerging restoration network reveals controls on seeding success across dryland ecosystems

Journal of Applied Ecology, Journal Year: 2020, Volume and Issue: 57(11), P. 2191 - 2202

Published: July 12, 2020

Abstract Drylands are Earth's largest terrestrial biome and support one‐third of the global population. However, they also highly vulnerable to land degradation. Despite widespread demand for dryland restoration rehabilitation, little information is available help managers effectively re‐establish native perennial vegetation across drylands. RestoreNet an emerging network that systematically tests revegetation techniques environmental gradients. Using experimental framework, we tested effectiveness treatments (i.e. ConMod nurse plant structures, mulch, pits) increase soil moisture seed mixes with different climatic niches achieve goals. Across sites, seedling recruitment was consistently influenced by treatment mix type. Pit mulch increased total density, pits promoting highest seeded species while limiting non‐native establishment. Seeding density regardless type, but cooler‐adapted promoted greater resulted in lower unseeded (non‐native) relative warmer‐adapted mixes. Seedling controlled temporal context positive effect high precipitation greatest weeks immediately following seeding. Above‐average during study period most sites may partially explain why occurred pit cooler, wetter niche requirements. Synthesis applications . Results from network, better understand variation seeding success space time Relationships between practices conditions our suggest importance anticipatory strategies forecast seasonal sub‐seasonal weather select climate requirements appropriate current future conditions. This critical tasked improving ecosystem degraded regions.

Language: Английский

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