Small-volume additions of forest topsoil improve root symbiont colonization and seedling growth in mine reclamation

McMahen, Katie; Anglin, C. D.; Lavkulich, L. M.; Grayston, Susan J.; Simard, Suzanne W.

doi:10.1016/j.apsoil.2022.104622

Cited by 9 publications

(2 citation statements)

References 62 publications

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“…In another recent greenhouse study conducted by McMahen et al (2022), additions of forest topsoil, corresponding to 5% (38 mL) and 25% (188 mL) of 750 mL pots containing copper and gold mining rejects or mine sterile soil, increased the survival and growth of seedlings of temperate tree species Salix scouleriana (willow), Alnus viridis (alder), and Picea engelmannii (fir). The greatest ectomycorrhizal fungal colonization was obtained with the highest proportion of forest soil.…”

Section: Discussionmentioning

confidence: 96%

Potencial Simbiótico de Microrganismos do Solo na Promoção do Crescimento de Espécies Arbóreas da Mata Atlântica

Santos,

Silva,

Faria

et al. 2024

Fronteiras

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The objective of this study was to evaluate the potential of topsoil obtained from a natural forest fragment in the Brazilian Atlantic Forest to serve as a source of symbiotic microorganisms capable of promoting the growth of native tree species in ecological restoration projects. In greenhouse conditions, 14 experiments in a completely randomized design were conducted in 1,700 cm³ pots filled with sterilized substrate. The effect of adding 80 g of topsoil, either in natura or sterilized, to the substrate was tested on the growth of 14 tree species. Plant height, stem diameter, mycorrhizal colonization and dry masses of shoot, roots, and nodules of tree species were measured. Applying the topsoil to the pots generally resulted in significant increases in height and stem diameter of seedlings compared to the control group during the four to six-month evaluation period. This effect was particularly greater in the nodulating species Plathymenia reticulata, Dalbergia nigra and Mimosa bimucronata, with increases in height and stem diameter of up to 328% and 484%, respectively. Forest topsoil also had a positive impact on the growth of shoot, roots, and nodules of the plants, significantly differing from the control groups. Only the plants that received the topsoil in natura exhibited mycorrhizal colonization and the formation of nodules in nitrogen-fixing species. These plants that established mycorrhizas and nodules presented higher concentrations of phosphorous and nitrogen in their biomass, respectively. Under controlled conditions, the use of forest topsoil proved to be a promising strategy for the introduction of microorganisms that can enhance the growth of tree species, thereby holding potential for implementation in nurseries and field settings.

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Section: Discussionmentioning

confidence: 96%

Potencial Simbiótico de Microrganismos do Solo na Promoção do Crescimento de Espécies Arbóreas da Mata Atlântica

Santos,

Silva,

Faria

et al. 2024

Fronteiras

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“…A first management guideline could concern not only respect for some monumental trees [104] and habitat trees [21,105] but also a decisive lengthening of the life of forest trees using a doubling the duration of the cycles currently practiced. It is very probable that old age trees mainly nourish the soil, preparing it for renewal [106,107] (Figure 9).…”

Section: Gaiamentioning

confidence: 99%

Soil, Humipedon, Forest Life and Management

Zampedri,

Bernier,

Zanella

et al. 2023

IJPB

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In recent years, three sections (Humipedon, Copedon and Lithopedon) were recognized in the soil profile. It was then possible to link the first and most biologically active section to the characteristics of the environment and soil genesis. In particular, it is now possible to distinguish organic horizons, mainly produced by arthropods and enchytraeids in cold and acidic or dry and arid environments, from organo-mineral horizons produced by earthworms in more temperate and mesotrophic environments. Each set of horizons can be associated with a humus system or form, with important implications for forestry. Anecic/endogeic earthworms and Mull or Amphi systems are more abundant in the early and late stages of sylvogenesis; by completely recycling litter, earthworms accelerate the availability of organic and inorganic soil nutrients to roots and pedofauna. On the other hand, arthropods and Moder or Tangel systems characterize the intermediate stages of sylvogenesis, where thickening in the organic horizons and the parallel impoverishment/reduction in the underlying organo-mineral horizons are observed. Recognizing the humus system at the right spatial and temporal scale is crucial for the biological management of a forest. This article includes a data review, new data from a doctoral thesis, and recent comparisons of Italian and French investigations.

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Critical steps in the restoration of coal mine soils: Microbial-accelerated soil reconstruction

Lu,

Wang,

Wang

et al. 2024

Journal of Environmental Management

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Small-volume additions of forest topsoil improve root symbiont colonization and seedling growth in mine reclamation

Cited by 9 publications

References 62 publications

Potencial Simbiótico de Microrganismos do Solo na Promoção do Crescimento de Espécies Arbóreas da Mata Atlântica

Potencial Simbiótico de Microrganismos do Solo na Promoção do Crescimento de Espécies Arbóreas da Mata Atlântica

Soil, Humipedon, Forest Life and Management

Critical steps in the restoration of coal mine soils: Microbial-accelerated soil reconstruction

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