Plant, soil and faunal responses to a contrived pH gradient
Authors: Duddigan, S., Fraser, T., Green, I., Diaz, A., Sizmur, T. and Tibbett, M.
Journal: Plant and Soil
Volume: 462
Issue: 1-2
Pages: 505-524
eISSN: 1573-5036
ISSN: 0032-079X
DOI: 10.1007/s11104-021-04879-z
Abstract:Purpose: To build a more holistic understanding of soil pH change we assessed the synchronised effects of a contrived soil pH change on soil chemistry, vegetation growth and nutrition, and soil faunal abundance and diversity. Methods: We established a fifteen year old field experiment with a contrived pH gradient (pH 4.3 to 6.3) and measured the effect on soil chemistry, plant biomass and elemental composition and the impact of these changes on soil fauna (earthworms, nematodes, rotifers and tardigrades) and biological indices (based on ecological group structures of earthworms and nematodes). A single 20 × 20 × 20 cm soil block was excavated from each sample site to directly attribute biotic parameters in the block to the abiotic (soil) conditions. Results: Acidification affected the extractable concentrations of Al, Ca, Mn and P and the C:N ratio of the soil and caused a reduction in plant Ca (rs for pH vs Ca = 0.804 p < 0.01), an increase in plant Mn (rs = −0.450 p = 0.019), along with significant decrease in root:shoot ratio (rs = 0.638, p < 0.01). There was a significant positive correlation between pH and earthworm index (rs = 0.606, p < 0.01), and a negative correlation between pH and nematode index (rs = −0.515, p < 0.01). Conclusion: Soil pH influenced the mobility of Ca, Al, Mn and P, which in turn has impacted on plant tissue chemistry and plant biomass ratios. Linked changes in soil chemistry and vegetation had a corresponding effect on the abundance and diversity of nematodes and earthworms in the soil blocks.
https://eprints.bournemouth.ac.uk/35252/
Source: Scopus
Plant, soil and faunal responses to a contrived pH gradient
Authors: Duddigan, S., Fraser, T., Green, I., Diaz, A., Sizmur, T. and Tibbett, M.
Journal: PLANT AND SOIL
Volume: 462
Issue: 1-2
Pages: 505-524
eISSN: 1573-5036
ISSN: 0032-079X
DOI: 10.1007/s11104-021-04879-z
https://eprints.bournemouth.ac.uk/35252/
Source: Web of Science (Lite)
Plant, soil and faunal responses to a contrived pH gradient
Authors: Duddigan, S., Fraser, T., Green, I., Diaz, A., Sizmur, T. and Tibbett, M.
Journal: Plant and Soil
eISSN: 1573-5036
ISSN: 0032-079X
DOI: 10.1007/s11104-021-04879-z
Abstract:© 2021, The Author(s). Purpose: To build a more holistic understanding of soil pH change we assessed the synchronised effects of a contrived soil pH change on soil chemistry, vegetation growth and nutrition, and soil faunal abundance and diversity. Methods: We established a fifteen year old field experiment with a contrived pH gradient (pH 4.3 to 6.3) and measured the effect on soil chemistry, plant biomass and elemental composition and the impact of these changes on soil fauna (earthworms, nematodes, rotifers and tardigrades) and biological indices (based on ecological group structures of earthworms and nematodes). A single 20 × 20 × 20 cm soil block was excavated from each sample site to directly attribute biotic parameters in the block to the abiotic (soil) conditions. Results: Acidification affected the extractable concentrations of Al, Ca, Mn and P and the C:N ratio of the soil and caused a reduction in plant Ca (rs for pH vs Ca = 0.804 p < 0.01), an increase in plant Mn (rs = −0.450 p = 0.019), along with significant decrease in root:shoot ratio (rs = 0.638, p < 0.01). There was a significant positive correlation between pH and earthworm index (rs = 0.606, p < 0.01), and a negative correlation between pH and nematode index (rs = −0.515, p < 0.01). Conclusion: Soil pH influenced the mobility of Ca, Al, Mn and P, which in turn has impacted on plant tissue chemistry and plant biomass ratios. Linked changes in soil chemistry and vegetation had a corresponding effect on the abundance and diversity of nematodes and earthworms in the soil blocks.
https://eprints.bournemouth.ac.uk/35252/
Source: Manual
Preferred by: Iain Green
Plant, soil and faunal responses to a contrived pH gradient
Authors: Duddigan, S., Fraser, T., Green, I.D., Diaz, A., Sizmur, T. and Tibbett, M.
Journal: Plant and Soil
Volume: 462
Pages: 505-524
ISSN: 0032-079X
Abstract:© 2021, The Author(s). Purpose: To build a more holistic understanding of soil pH change we assessed the synchronised effects of a contrived soil pH change on soil chemistry, vegetation growth and nutrition, and soil faunal abundance and diversity. Methods: We established a fifteen year old field experiment with a contrived pH gradient (pH 4.3 to 6.3) and measured the effect on soil chemistry, plant biomass and elemental composition and the impact of these changes on soil fauna (earthworms, nematodes, rotifers and tardigrades) and biological indices (based on ecological group structures of earthworms and nematodes). A single 20 × 20 × 20 cm soil block was excavated from each sample site to directly attribute biotic parameters in the block to the abiotic (soil) conditions. Results: Acidification affected the extractable concentrations of Al, Ca, Mn and P and the C:N ratio of the soil and caused a reduction in plant Ca (rs for pH vs Ca = 0.804 p < 0.01), an increase in plant Mn (rs = −0.450 p = 0.019), along with significant decrease in root:shoot ratio (rs = 0.638, p < 0.01). There was a significant positive correlation between pH and earthworm index (rs = 0.606, p < 0.01), and a negative correlation between pH and nematode index (rs = −0.515, p < 0.01). Conclusion: Soil pH influenced the mobility of Ca, Al, Mn and P, which in turn has impacted on plant tissue chemistry and plant biomass ratios. Linked changes in soil chemistry and vegetation had a corresponding effect on the abundance and diversity of nematodes and earthworms in the soil blocks.
https://eprints.bournemouth.ac.uk/35252/
Source: BURO EPrints