Organic layers favor phosphorus storage and uptake by young beech trees (Fagus sylvatica L.) at nutrient poor ecosystems

Hauenstein, Simon; Neidhardt, Harald; Lang, Friederike; Krüger, Jaane; Hofmann, Diana; Pütz, Thomas; Oelmann, Yvonne

doi:10.1007/s11104-018-3804-5

Cited by 20 publications

(33 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Prima-Putra and Botton, 1998;Netzer et al, 2017). In line with our hypotheses, xylem sap total P concentrations were 2.3-fold higher in BBR than in LUE (Figure 2) and this was corroborated by 10-fold higher NaHCO 3 -P-extractable P concentrations in soil in BBR as compared to LUE (Hauenstein et al, 2018). Therefore, site-specific P availability in soil was reflected in P concentrations of xylem sap.…”

Section: Site Effects On P Concentrations and O Isotope Signatures Ofsupporting

confidence: 86%

“…This is further corroborated by a larger difference in P concentrations between leaf litter and fresh leaves and thus, higher P resorption, in LUE as compared to BBR (Lang et al, 2017). In summary, not only transformations of Po to Pi in organic layers (Hauenstein et al, 2018) but also Po uptake and tree-internal cycling are decisive for P nutrition of trees at the P-poor site.…”

Section: Site Effects On P Concentrations and O Isotope Signatures Ofmentioning

confidence: 58%

“…In "acquiring ecosystems, " e.g., on young, nutrient-rich or just P-rich soils, P is mobilized from P-containing minerals in the soil and subsequently taken up by trees (Odum, 2014;Lang et al, 2016). In forests on old, highly weathered and/or P-poor soils, trees mainly rely on the mobilization from organically bound P in soil organic matter ("recycling ecosystems;" Hauenstein et al, 2018). Augusto et al (2017) consider the parent material as the principal component controlling P availability in soils, beside the progression of pedogenesis, or climatic controls.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Impacts of Fertilization on Biologically Cycled P in Xylem Sap of Fagus sylvatica L. Revealed by Means of the Oxygen Isotope Ratio in Phosphate

Hauenstein¹,

Nebel²,

Oelmann³

2020

Front. For. Glob. Change

Self Cite

View full text Add to dashboard Cite

Studies on the effect of high atmospheric N deposition report inconsistent results on forest productivity and N cycling which might be related to P availability in soil and subsequently affect tree P nutrition. We wanted to test the effects of (i) site i.e., a P-poor versus a P-rich site and of (ii) fertilization (N, P, N+P) on inorganic P (Pi) and organic P (Po) concentrations as well as on biologically cycled phosphate (inferred from the O isotope signature after adding an 18 O-enriched label) in xylem sap. We measured Pi and Po concentrations and the O isotope signature in phosphate (δ 18 O Pi) in xylem sap of beech (Fagus sylvatica L.) trees two and 14 days after addition of 18 O-enriched water to the organic layer in a full factorial fertilization experiment (control, +N, +P, +NP) at two sites differing in P availability. Higher P concentrations in xylem sap at the P-rich than at the P-poor site originated from accelerated biological P cycling indicated by incorporation of 18 O from the isotope label into phosphate in xylem sap shortly after labeling. At this site, δ 18 O W values of xylem sap after label application remained close to background δ 18 O W values of soil solution. We speculate that in contrast to P uptake, trees took up water from deeper (non-18 O-labeled) soil layers. At the P-poor site, the 18 O label was recovered both in xylem sap water and phosphate in xylem sap, the latter only after 14 days. These results imply that trees relied on the organic layer for P acquisition and water uptake. However, biological processes associated with an incorporation of 18 O from the label were slower at the P-poor than at the P-rich site. P addition (P, NP) increased Pi concentrations in xylem sap at the P-rich site. Based on δ 18 O Pi values in xylem sap, the additional P originated both from the fertilizer and from accelerated biological P cycling in soil. We conclude that P-poor sites likely suffer more from climate change in case of an increased frequency of droughts because as opposed to P-rich sites both water and nutrient uptake will be affected.

show abstract

Section: Site Effects On P Concentrations and O Isotope Signatures Ofsupporting

confidence: 86%

Section: Site Effects On P Concentrations and O Isotope Signatures Ofmentioning

confidence: 58%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Impacts of Fertilization on Biologically Cycled P in Xylem Sap of Fagus sylvatica L. Revealed by Means of the Oxygen Isotope Ratio in Phosphate

Hauenstein¹,

Nebel²,

Oelmann³

2020

Front. For. Glob. Change

Self Cite

View full text Add to dashboard Cite

show abstract

“…Preferential root proliferation in nutrient-enriched patches and layers has been observed frequently (Hodge, 2006;Chen et al, 2016). Particularly important for trees growing in nutrientpoor soils in temperate forests is preferential exploration of the topsoil, including the organic surface layer (Borken et al, 2007;Hauenstein et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Plant Nutritional Status Explains the Modifying Effect of Provenance on the Response of Beech Sapling Root Traits to Differences in Soil Nutrient Supply

Meller¹,

Frossard²,

Spohn³

et al. 2020

Front. For. Glob. Change

View full text Add to dashboard Cite

Forests dominated by beech (Fagus sylvatica L.) cover large parts of Europe where they occupy a broad ecological niche in terms of soil fertility. This indicates a large potential to adapt to different soil conditions over long time periods. Recent changes in tree mineral nutrition across Europe raise the question to what degree beech can acclimate to changing soil conditions in the short term. In this study, we aimed at assessing the plasticity of root traits and rhizosphere properties of young beech trees from populations that are adapted to either high or low nutrient supply, when growing in soils differing in their fertility. We sampled beech saplings from two forest sites of contrasting nutrient supply, most distinctly in terms of phosphorus. We grew them for 2 years in rhizoboxes in mineral soil either from their own site or from the other site. We assessed the influence of the factors "plant origin" and "current soil" on root traits and rhizosphere properties. Fine root traits related to growth (biomass, length), architecture (branching), and morphology (diameter) responded strongly to the factor "current soil." Provenance (factor "plant origin") modified the response. The modifying effect was consistent with an influence of the plant status in those nutrients, which were not in sufficient supply in the soil. An additional genotypic difference in the sensitivity of the beech saplings to different soil nutrient supply could not be excluded. Fine root parameters normalized for length, mass, or volume (root tip density and frequency, specific root length and area, and root tissue density) did not differ among the treatments. Differences in percentage of mycorrhizal root tips and rhizosphere parameters related to phosphorus mobilization potential (pH, abundance of organic acid anions, and phosphatase activity) were small and mainly determined by the "current soil." Provenance had only a minor modifying effect, possibly due to differences in the ability of the plants to transfer carbon compounds from the shoot to the root and the fungal partner. Our results indicate a high plasticity of young beech trees to adapt their root system to different soil nutrient supply, thereby also taking into account internal nutrient reserves.

show abstract

“…Within the German Priority Program SPP1685 "Ecosystem Nutrition: Forest Strategies for Limited Phosphorus Resources" we studied P dynamics and the biological contribution to P availability in organic horizons (Oe) of two contrasting (low-and high-P availability) and well-characterized soils from temperate forests. We chose organic horizons, as they are essential for the recycling of nutrients in forests, supplying up to 99% of plant P demand where inorganic P availability is low (Brandtberg et al, 2004;Jonard et al, 2009;Hauenstein et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

In or Out of Equilibrium? How Microbial Activity Controls the Oxygen Isotopic Composition of Phosphate in Forest Organic Horizons With Low and High Phosphorus Availability

Pistocchi

Mészáros

Frossard

et al. 2020

Front. Environ. Sci.

View full text Add to dashboard Cite

While there are estimates of the abiotic processes contribution to soil phosphorus (P) availability, less is known about the contribution of biological processes. Two main enzymatic processes involved in soil P cycling are known to alter the oxygen isotopic composition of phosphate (δ 18 O-P), each in a different way, through the cleavage of the P-O bond: the intracellular P turnover and the organic P hydrolysis. The former induces isotopic equilibration between phosphate and water and is considered the major process affecting soil available P via microbial P release. The latter induces depleted δ 18 O-P in the phosphate released from the mineralization of organic P. We studied P dynamics in organic horizons of two contrasting soils (low-and high-P availability) from temperate beech forests. We labeled the soil with 18 O-enriched water and followed changes in the δ 18 O-P of different soil P pools in the presence or absence of added leaf litter during 3 months of incubation. δ 18 O-P values of almost all P pools progressively increased indicating oxygen incorporation from the enriched soil water into phosphate via the above-mentioned enzymatic processes. δ 18 O-P of available P increased more in the P-rich soil than in the P-poor soil and approached the isotopic equilibrium between phosphate and water, revealing the impact of microbial P release into the available P pool. However, in the P-poor soil, the available P brought the isotopic signature induced by phosphatase enzymes, indicating that it was mostly originated from the hydrolysis of organic P. Therefore, under P-limiting conditions, the isotopic effect of organic P hydrolysis can outweigh the isotopic equilibrium effect. Finally, two independent isotopic approaches with 33 P and δ 18 O-P provided very similar estimates of P exchanged between the available P and other inorganic soil pools. This suggests that δ 18 O-P can be successfully used to trace P fluxes, provided that the underlying processes do not break the P-O bonds of the phosphate molecule.

show abstract

Organic layers favor phosphorus storage and uptake by young beech trees (Fagus sylvatica L.) at nutrient poor ecosystems

Cited by 20 publications

References 38 publications

Impacts of Fertilization on Biologically Cycled P in Xylem Sap of Fagus sylvatica L. Revealed by Means of the Oxygen Isotope Ratio in Phosphate

Impacts of Fertilization on Biologically Cycled P in Xylem Sap of Fagus sylvatica L. Revealed by Means of the Oxygen Isotope Ratio in Phosphate

Plant Nutritional Status Explains the Modifying Effect of Provenance on the Response of Beech Sapling Root Traits to Differences in Soil Nutrient Supply

In or Out of Equilibrium? How Microbial Activity Controls the Oxygen Isotopic Composition of Phosphate in Forest Organic Horizons With Low and High Phosphorus Availability

Contact Info

Product

Resources

About