Soil conditioning and plant-soil feedbacks in a modified forest ecosystem are soil-context dependent

Orozco-Aceves, Martha; Standish, Rachel J.; Tibbett, Mark

doi:10.1007/s11104-015-2390-z

Cited by 10 publications

(6 citation statements)

References 61 publications

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“…A recent meta-analysis revealed that dissimilarities in shoot and root traits have the potential to influence the individual feedback of two plant species in each other 's soil (i.e., pairwise PSF;Xi et al 2021). This study also provided evidence that plant traits along the fast-to slow-growing plant economic spectrum (Reich 2014) might be a powerful tool to predict the outcome of PSF and ties into other work demonstrating the influence of traits on PSF processes (Baxendale et al 2014;Heinen et al 2020a;Orwin et al 2010;Teste et al 2017).…”

Section: Plant Functional Traitssupporting

confidence: 52%

Plant-soil feedback: incorporating untested influential drivers and reconciling terminology

et al. 2023

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Background Plants condition the soil in which they grow, thereby altering the performance of subsequent plants growing in this soil. This phenomenon, known as plant-soil feedback (PSF), has garnered increasing interest. Experiments are moving from single species soil pairings in the glasshouse to community-level field trials. Consequently, our knowledge of the role PSF plays in shaping ecosystem functions has advanced. However, knowledge gaps remain. Scope Here, we explore intrinsic and extrinsic abiotic and biotic drivers of PSF such as maternal effects, plant functional traits, self-DNA, plant-plant competition, herbivory, interactions between soil organisms, temperature, drought, flooding, greenhouse gases, (micro)nutrients, plant-litter-soil feedback and priority effects. These drivers have begun to feature in experiments, thereby increasing our mechanistic understanding of PSF. Nonetheless, many of these topics have received insufficient coverage to determine general principles across larger temporal and spatial scales. Further, conflicting terminology has excluded PSF studies from reviews and meta-analyses. We review terms such as soil sickness, Janzen-Connell hypothesis, soil-related invasive species work, soil legacies, allelopathy and soil-related succession that overlap with PSF but are generally not named as such. Conclusion Holistic experimental designs that consider the continual reciprocal feedback between the extrinsic environment, plants and soil, as well as the unification of terminologies are necessary if we are to realise the full potential of PSF for understanding and steering ecosystem processes. Here, we compile outstanding questions related to PSF research that emphasis the aforementioned topics and suggest ways to incorporate them into future research in order to advance plant-soil ecology.

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Section: Plant Functional Traitssupporting

confidence: 52%

Plant-soil feedback: incorporating untested influential drivers and reconciling terminology

et al. 2023

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“…Soil for the experiment was collected from jarrah forest (116°5′E, 32°36′S) in 2008. It was a gravelly sandy soil with approximately 0.08% total N, 3.05% total C, 4 mg/kg available P and a pH (CaCl 2 ) of 5.1 (Orozco‐Aceves et al., 2015). The soil was steam pasteurised (i.e.…”

Section: Methodsmentioning

confidence: 99%

Mycorrhizal symbiosis and phosphorus supply determine interactions among plants with contrasting nutrient‐acquisition strategies

et al. 2021

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1. Highly diverse plant communities growing on nutrient-impoverished soils are test beds for theories on species coexistence. Here, neighbouring mycorrhizal and non-mycorrhizal plants compete for limited phosphorus. The impact of belowground interactions on community dynamics is underexplored.2. We used an experimental approach to investigate effects of inoculation with arbuscular mycorrhizal (AM) fungi and a phosphorus supply gradient on competitive and facilitative interactions among mixed assemblages of woody plants in microcosms. The plant species, one cluster root-forming (CR) species and four AM species, are native to jarrah forest that grows on nutrient-impoverished soils in south-western Australia. We measured plant growth in microcosms, with and without inoculation with the AM fungus Rhizophagus irregularis, and across a gradient of P supply: 0, 9, 27 and 243 mg P per kg of soil.3. Our data show evidence of plant-plant facilitation at low P supply and competition at high P supply. Growth of the CR species, Hakea undulata, was highest in microcosms with 0P and without AM inoculation. One AM species, Bossiaea aquifolium, also performed better at lower P levels, possibly benefitting from P mobilised by H. undulata. The other three AM species, one strongly obligates, performed better at higher P levels. Data for Acacia celastrifolia suggested it was facultatively mycotropic, and because there was no correlation between AM colonisation and the relative inoculum effect, we suggest positive effects of AM inoculation at 9P might be due to benefits other than P acquisition, such as pathogen defence.Benefit of AM inoculation diminished for three of four mycorrhizal species at the highest P level as we had predicted. The fourth species, Eucalyptus marginata (jarrah), had higher growth in microcosms that were not inoculated with AM, perhaps because the species benefits more from ectomycorrhizas.

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“…sites have shown differential correlative effects of rehabilitated soil biotic and abiotic properties (Orozco-Aceves et al, 2017). Also, plant-soil feedbacks behave differently in unmined versus rehabilitated soils (Orozco-Aceves et al, 2015). Further work is required to build understanding of this topic (e.g., via longitudinal studies).…”

Section: Spatial Autocorrelationmentioning

confidence: 99%

Next generation restoration metrics: Using soil eDNA bacterial community data to measure trajectories towards rehabilitation targets

Liddicoat

Krauss

Bissett

et al. 2022

Journal of Environmental Management

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Soil conditioning and plant-soil feedbacks in a modified forest ecosystem are soil-context dependent

Cited by 10 publications

References 61 publications

Plant-soil feedback: incorporating untested influential drivers and reconciling terminology

Plant-soil feedback: incorporating untested influential drivers and reconciling terminology

Mycorrhizal symbiosis and phosphorus supply determine interactions among plants with contrasting nutrient‐acquisition strategies

Next generation restoration metrics: Using soil eDNA bacterial community data to measure trajectories towards rehabilitation targets

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