Long-term conditioning of soil by plantation eucalypts and pines does not affect growth of the native jarrah tree

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

doi:10.1016/j.foreco.2014.11.007

Cited by 10 publications

(10 citation statements)

References 41 publications

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“…Second, eucalypt seedlings exhibited variable growth responses to inoculation with conspecific versus heterospecific soils consistent with plant-microbial feedback, but these responses were species-specific. We are only aware of a single study that has analyzed for plant-microbial feedback in Eucalyptus (Orozco- Aceves et al 2015), where the authors detected no significant feedback effects. Third, despite the obvious removal of aboveground vegetation, forest fire appeared to modify soil microbial communities and interact with plant-microbial feedbacks.…”

Section: Discussionmentioning

confidence: 99%

“…While an observed effect of tree species on soil communities under field conditions may just reflect variation in the microhabitat occupied by the tree species, the fact that we sampled across eucalypt microhabitats within our site (i.e., mixed and pure stands), suggests that it was likely that eucalypt species modified soil microbial communities. Few studies have investigated whether eucalypt species modify distinct microbial communities (Anderson et al 2013;Orozco-Aceves et al 2015;Sayad et al 2012). Yet, these studies support our findings by showing that eucalypt species may differentially modify both soil chemical and biotic characteristics, potentially through species varying in traits (i.e., growth rate and chemistry) related to the quantity and quality of organic matter entering soils (Baxendale et al 2014;Orwin et al 2010).…”

Section: Discussionmentioning

confidence: 99%

“…The genus is of economic and ecological importance and, therefore, it is important to determine what factors drive the performance of these species. While there are some reports of eucalypt species differentially influencing soil chemical properties (Orozco-Aceves et al 2015;Sayad et al 2012), there is also evidence to suggest that eucalypt species can differentially modify soil communities. For instance, Anderson et al (2013) found that E. saligna and E. sideroxylon seedlings modified distinct soil fungal communities after just five month's growth in a greenhouse experiment.…”

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confidence: 99%

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Forest fire may disrupt plant–microbial feedbacks

et al. 2018

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Plant-microbial feedbacks are important drivers of plant community structure and dynamics. These feedbacks are driven by the variable modification of soil microbial communities by different plant species. However, other factors besides plant species can influence soil communities and potentially interact with plant-microbial feedbacks. We tested for plantmicrobial feedbacks in two Eucalyptus species, E. globulus and E. obliqua, and the influence of forest fire on these feedbacks. We collected soils from beneath mature trees of both species within native forest stands on the Forestier Peninsula, Tasmania, Australia, that had or had not been burnt by a recent forest fire. These soils were subsequently used to inoculate seedlings of both species in a glasshouse experiment. We hypothesized that (i) eucalypt seedlings would respond differently to inoculation with conspecific versus heterospecific soils (i.e., exhibit plant-microbial feedbacks) and (ii) these feedbacks would be removed by forest fire. For each species, linear mixed effects models tested for differences in seedling survival and biomass in response to inoculation with conspecific versus heterospecific soils that had been collected from either unburnt or burnt stands. Eucalyptus globulus displayed a response consistent with a positive plant-microbial feedback, where seedlings performed better when inoculated with conspecific versus heterospecific soils. However, this effect was only present when seedlings were inoculated with unburnt soils, suggesting that fire removed the positive effect of E. globulus inoculum. These findings show that external environmental factors can interact with plant-microbial feedbacks, with possible implications for plant community structure and dynamics.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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confidence: 99%

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Forest fire may disrupt plant–microbial feedbacks

et al. 2018

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“…It has been suggested that plant communities condition the soil through rhizodeposition and exudates, which modify the physical, chemical, and biological environment in soil, thereby impacting on the microbial community [78]. However, some studies had contrasting results and found that plants have no impact on shaping the microbial community in restoration projects [79,80]. Alteration in the aboveground community does not automatically initiate a response in the belowground community, and the presence of aboveground or belowground heathland species alone does not necessarily lead to restored plant-soil interactions [81,82] Soil amended chemically with elemental sulphur, although similar in pH, will differ from a soil that has acidified naturally as a result of build-up of ericaceous plant litter.…”

Section: Belowground Response To Changes In Soil Chemical Propertiesmentioning

confidence: 99%

Evaluating Heathland Restoration Belowground Using Different Quality Indices of Soil Chemical and Biological Properties

et al. 2020

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Reversion of agricultural land to heathland and acid grassland is a priority for the conservation of these rare habitats. Restoration processes require interventions to reverse the effects of fertilization and acidity amelioration undertaken during decades of agricultural production. Belowground assessments of restoration success are few, and we have examined the utility of soil indices as a rationalized tool for land managers and restoration practitioners to assess the efficacy of restoration practice. To achieve this, we assessed a large number of variables, many of which might be near redundant, that could be optimized for such indices. We used a 14-year field experiment contrasting acidified pasture (treated with elemental sulphur), control (untreated) pasture, and adjacent native heathland and acid grassland sites. Based on biotic and abiotic parameters, several ‘heathland restoration indices’ (resembling soil quality indices) were generated using a minimum dataset identified through principal component analysis and a linear scoring system. For comparison we also conducted alternative analyses of all parameters, using nonmetric multidimensional scaling plots and analyses of similarity (ANOSIM). Use of heathland restoration indices showed that elemental sulphur application had changed the soil chemical conditions, along with the vegetation assemblage, to be comparable to that of native acid grassland, but not the belowground biology. ANOSIM on full datasets confirmed this finding. An index based on key variables, rather than an analysis of all biotic and abiotic parameters, can be valuable to land managers and stakeholders in acid grassland and heathland restoration.

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“…are in existence globally, with more than one million hectares of cultivated pine plantations in Australia alone (ABARES, ; FSC, ; Kasel, Bell, Enright, & Meers, ). There is a growing expectation to restore retired pine plantations back to native ecosystems for ecological conservation purposes (Aronson & Alexander, ; Kasel et al, ; Perring et al, ), with a number of studies examining potential limitations to restoration (e.g., Atkinson, Bailey, Vaughan, & Memmott, ; Orozco‐Aceves, Standish, & Tibbett, ). Potential abiotic and biotic constraints can result from the removal of pine plantations, and the legacy effects and subsequent land degradation that may limit the success of native plant establishment and identifying these constraints is critical to the success of native plant restoration (Daehler, ; Hobbs & Harris, ; Orozco‐Aceves et al, ).…”

Section: Introductionmentioning

confidence: 99%

Legacy issues in post‐pine (Pinus pinaster) restoration environments: Weeds compromise seedling growth and function more than edaphic factors

2018

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Restoration of commercial pine plantations to native ecosystems is increasing globally. This study investigated the abiotic and biotic factors in a postpine (Pinus pinaster) ecosystem that could potentially limit successful restoration of highly biodiverse Banksia woodlands. Soil abiotic conditions were analysed across a 7‐year postpine chronosequence and compared with a reference Banksia woodland soil to assess soil legacy issues. Ten native species were grown in postpine soils and monitored for germination and growth responses. Three species were selected and grown in the presence of an invasive species, Ehrharta calycina, to assess biotic impacts on seedling emergence, establishment, physiology, and drought response. Analysis revealed no differences in soil abiotic conditions along the chronosequence in comparison with the reference soil, apart from increasing organic carbon along the chronosequence (p = .003). Germination was not impeded in postpine soils, but seedling growth responses varied among species and soils. Seedling emergence was not affected by the presence of E. calycina; however, seedling growth measurements were significantly reduced (20%–78% decline). Physiological function (stomatal conductance) of native seedlings prior to drought treatment was not impeded, though when grown with E. calycina under drought 2 species, Banksia menziesii and Corymbia calophylla, exhibited a more rapid loss of physiological function. This case study examines abiotic and biotic limitations to Banksia woodland restoration success in postpine environments, suggesting postpine soils are not a barrier to restoration, and highlight the importance of preventing E. calycina from becoming established.

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Long-term conditioning of soil by plantation eucalypts and pines does not affect growth of the native jarrah tree

Cited by 10 publications

References 41 publications

Forest fire may disrupt plant–microbial feedbacks

Forest fire may disrupt plant–microbial feedbacks

Evaluating Heathland Restoration Belowground Using Different Quality Indices of Soil Chemical and Biological Properties

Legacy issues in post‐pine (Pinus pinaster) restoration environments: Weeds compromise seedling growth and function more than edaphic factors

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