Elements dynamics, from leaf to stable leaf litter residue and soil, for two functional types of tree planted on volcanic deposits

Marco, Anna De; Vittozzi, Paola; Santo, A. Vírzo De

doi:10.1007/s11104-022-05676-y

Cited by 13 publications

(12 citation statements)

References 43 publications

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“…In addition to this, nonessential elements like Zr, Th, and U and toxic elements including the heavy metals Al, Sb, As, Cs, and Pb also increased in concentrations as decomposition proceeded. Increase in the concentration of these elements agrees with other studies done in Scandinavian ecosystems (Laskowski and Berg, 1993;Brun et al, 2008) and elsewhere (Yue et al, 2019;Li et al, 2020;Kondratova and Bryanin 2021;De Marco et al, 2022). Their increase in concentrations probably is related with increased AUR and N, since we observed significant relationship between them (Fig.…”

Section: Trace Elements Dynamics During Decompositionsupporting

confidence: 92%

“…Release of the nutrients from decomposing litters is one of the most important processes in the cycling of elements and in the biogeochemistry of vegetated ecosystems, including forests (Prescott, 2005;Berg, 2014;Hobbie et al, 2015;Yue et al, 2020;Montemagno et al, 2021). The knowledge about decomposition processes has helped us to link primary productivity to soil nutritive capital through litter decomposition (Hobbie, 2015;De Marco et al, 2022) and helped us to recognize its significance to vegetation and soil inhabiting biota (Hättenschwiler et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

“…Work on understanding the dynamics of some of the elements in this group, namely heavy metals, started as early as in the 1970's (Rühling and Tyler, 1973) and was later followed by crucial studies giving rare views of their dynamics (Fe, Mn, Zn, Cu, Al, Co, Mo, Ti, V, Zn, Cd, Pb, Ni, Cr, and REEs) tied to litter decomposition (Laskowski and Berg, 1993;Yue et al, 2019;Montemagno et al, 2021;De Marco et al, 2022;Kondratova and Bryanin 2021). Still, for most of the ecosystems, for reasons unknown, such studies have not been prioritized for several other trace elements and REEs (Berg and Laskowski, 2005;Brun et al, 2008;Cao et al, 2018;Gautam et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

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Dynamics of trace and rare earth elements during long-term (over four years) decomposition in Scots pine and Norway

Gautam

Berg

Lee

2023

Preprint

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The temporal dynamics of 33 major, trace and rare earth elements (REEs) was studied in the Swedish Norway spruce-NSL (Picea abies) and Scots pine-SPL (Pinus sylvestris) litters with the aim to assess their release and accumulation dynamics. Litter bags (8×8cm) were incubated in paired monoculture stands of both the species for upto five years from 1979-1984 according to a randomized block design comprising 25 blocks (1×1 m) within an area of 625 m2. Decomposition rate was slightly higher for SPL (k = 0.315) compared to that of NSL (k= 0.217). During litter decomposition, until ~70% accumulated mass loss (AML), concentration of trace elements increased >50% in both litter types relative to initial concentrations. The pattern of concentration change was non-linear, and polynomial quadratic regression between concentration change and AML resulted in a significant relationships (adj R2= 0.20–0.97; P = 0.15–<0.0001). The changes in concentration and amount of trace elements resulted in two main types of dynamics; (i) both concentration and amount increased for Fe, Al, Ti, Cu, Mo, V, Zr, Sb, As, Cs, Pb, Th and U; (ii) concentration increased but amount decreased for Ni, Zn, Li and Sr. REEs’ amounts increased ~3-fold to 99-fold between the beginning and end of incubations suggesting accumulation during litter decomposition. Dynamics of different REEs were similar in their patterns of change in the two litters. Different REEs, had generally identical patterns of change during incubation, which is reflected in the high correlations among them (r2 = >0.95). A general upward convexity in the dynamics hints that if further incubated in the field, decomposing litter could have accumulated more REE in the organic matter. The results of this study can be useful for future studies in other ecosystems including metal-contaminated sites or element depleted sites. Plant litter accumulation, its decomposition and build-up of humic substances in the decomposing organic matter can act as sink for elements and can be used as a management tool for ecological amelioration of metal-contaminated sites as well as natural systems that are impoverished, especially recuperating ones. The study's findings have implications beyond such sites and can be useful in any research that seeks to understand the patterns of accumulation and release related to decomposition in different ecosystems.

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Section: Trace Elements Dynamics During Decompositionsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Dynamics of trace and rare earth elements during long-term (over four years) decomposition in Scots pine and Norway

Gautam

Berg

Lee

2023

Preprint

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“…The highest explanation for extracellular enzymes was MBC (55.3%) (Figure 6b,d). Extracellular enzymes are mainly derived from soil microbial activities, root exudates, and the decomposition of soil, plant, and microbial necromass, which increases microbial acquisition of limiting elements to ensure strict stoichiometric homeostasis in the organism [15,16]. In plant-microbes-soil systems, microbially-mediated decomposition of plant residues and soil nutrient cycling are always dynamic [17], which could result in an imbalance between substrate resource availability and microbial requirements [18].…”

Section: Influential Factors Of Extracellular Enzymatic Stoichiometrymentioning

confidence: 99%

Extracellular Enzyme Activity and Stoichiometry Reveal Nutrient Dynamics during Microbially-Mediated Plant Residue Transformation

Liu

et al. 2022

Forests

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Extracellular enzymes are the major mediators of plant residue and organic matter decomposition in soil, frequently associated with microbial metabolic processes and the biochemical cycling of nutrients in soil ecosystems. However, the dynamic trends and driving factors of extracellular enzymes and their stoichiometry during plant residue transformation remain to be further studied. Here, we investigated the dynamics of extracellular enzymes and enzymatic stoichiometry in the “litter-soil” transformation interface soil (TIS) layer, an essential occurrence layer for microbially-mediated C transformation. The results indicated an unbalanced relationship between substrate resource supply and microbial metabolic demand. Microbial metabolism was limited by C (C/N-acquiring enzymes > 1) and P (N/P-acquiring enzymes < 1) throughout the observed stages of plant residue transformation. The initially higher extracellular enzyme activity reflected the availability of the active components (dissolved carbon (DC), nitrogen (DN), microbial biomass carbon (MBC), nitrogen (MBN), and phosphorus (MBP)) in the substrate and the higher intensity of microbial metabolism. With the transformation of plant residues, the active fraction ceased to be the predominant microbial C source, forcing the secretion of C-acquiring enzymes and N-acquiring enzymes to obtain C sources and N nutrients from refractory substrates. Moreover, C/N-acquiring enzymes decreased, while C/P-acquiring enzymes and N/P-acquiring enzymes subsequently increased, which suggested that the microbial demand for N gradually increased and for P relatively decreased. Soil microorganisms can be forced into dormancy or intracellular mineralization due to the lack of substrate resources, so microbial biomass and extracellular enzyme activities decreased significantly compared to initial values. In summary, the results indicated that soil nutrients indirectly contribute to extracellular enzymes and their stoichiometry by affecting microbial activities. Furthermore, extracellular enzymes and their stoichiometry were more sensitive to the response of soil microbial biomass carbon.

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“…According toDeng et al (2022), litter residues that present high content of macronutrients and low content of lignin are the preferred source for r-and k-strategists that provide the litter biochemical decomposition(Greff et al 2022). Thus, we must consider that litter residues deposited aboveground with high contents of N, K, Ca, Mg, and S may be positively correlated to their high N, K, Ca, Mg, and S cycling into the soil ecosystem(Marco et al 2022). We cannot exclude the habitat quality and nutrient hypotheses described by Forstall-Sosa et al (2020), andMelo et al (2019), in which litter residue drives the soil biota diversity in tropical and subtropical, which can be supported by results on the plots from high site quality.…”

mentioning

confidence: 99%

Site quality for Araucaria angustifolia plantations with subtropical Cambisol is driven by soil organism assemblage and the litter and soil compartments

Souza,

Dobner,

Nascimento

et al. 2023

Preprint

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Soil quality is a driver for biodiversity enrichment, soil fertility, and soil organic matter dynamics. Different soil quality levels at Araucaria angustifolia plantations may influence the soil organisms, and the interaction between litter and soil compartments by providing habitat and nutrients in different pathways. Our aim was to present a deeper view of the litter-soil compartments, and soil organisms community composition associated with three degrees of site quality (low-, average-, and high-quality sites), which reflect productivity levels, at the highlands of southern Brazil. The non-metric multidimensional scaling (NMDS) grouped the influence of soil quality degrees in three groups considering the dissimilarities on the soil organisms among each other. The ordination of the soil organisms, richness, and Shannon’s diversity in each studied soil quality degree had a stress value of 0.08. The structural equation models indicated that the loss of soil quality showed a negative relationship among soil organisms’ assemblage, and soil-litter compartments. Our results highlighted the importance of considering soil biotic and abiotic attributes for achieving high productivity levels from A. angustifolia plantations within its natural occurrence range.

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Elements dynamics, from leaf to stable leaf litter residue and soil, for two functional types of tree planted on volcanic deposits

Cited by 13 publications

References 43 publications

Dynamics of trace and rare earth elements during long-term (over four years) decomposition in Scots pine and Norway

Dynamics of trace and rare earth elements during long-term (over four years) decomposition in Scots pine and Norway

Extracellular Enzyme Activity and Stoichiometry Reveal Nutrient Dynamics during Microbially-Mediated Plant Residue Transformation

Site quality for Araucaria angustifolia plantations with subtropical Cambisol is driven by soil organism assemblage and the litter and soil compartments

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