Jörg Prietzel

Jörg Prietzel
Technische Universität München | TUM · Chair of Soil Science

PhD Professor

About

150
Publications
29,746
Reads
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4,073
Citations
Citations since 2017
28 Research Items
2112 Citations
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20172018201920202021202220230100200300400

Publications

Publications (150)
Article
Full-text available
The extreme environmental conditions and lack of water on the soil surface in hyperarid deserts hamper microbial life, allowing only highly specialized microbial communities to the establish colonies and survive. Until now, the microbial communities that inhabit or have inhabited soils of hyperarid environments at greater depths have been poorly st...
Article
Full-text available
Sustainable forest management requires understanding of ecosystem phosphorus (P) cycling. Lang et al. (2017) [Biogeochemistry, https://doi.org/10.1007/s10533-017-0375-0] introduced the concept of P-acquiring vs. P-recycling nutrition strategies for European beech (Fagus sylvatica L.) forests on silicate parent material, and demonstrated a change fr...
Article
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Earthworms are an important soil taxon as ecosystem engineers, providing a variety of crucial ecosystem functions and services. Little is known about their diversity and distribution at large spatial scales, despite the availability of considerable amounts of local-scale data. Earthworm diversity data, obtained from the primary literature or provid...
Article
Full-text available
Earthworms are an important soil taxon as ecosystem engineers, providing a variety of crucial ecosystem functions and services. Little is known about their diversity and distribution at large spatial scales, despite the availability of considerable amounts of local-scale data. Earthworm diversity data, obtained from the primary literature or provid...
Article
Full-text available
Calcium (Ca) plays a crucial role for plant nutrition, soil aggregation, and soil organic matter (SOM) stabilization. Turnover and ecological functions of Ca in soils depend on soil Ca speciation. For the first time, we used synchrotron-based X-ray absorption near-edge structure (XANES) spectroscopy at the Ca K-edge (4038 eV) to investigate Ca spec...
Article
Low-molecular-weight organic acids (LMWOAs) are crucial for the mobilization and acquisition of mineral phosphorus by plants. However, the role of LMWOAs in mobilizing organic phosphorus, which is the predominant phosphorus form in at least half of the world's ecosystems, especially in humid climates, is unclear. The mechanisms of phosphorus mobili...
Article
Dissolved and colloidal phosphorus (P) represent the mobile P fractions in soils, but their role in P cycling in forests is still largely unclear. In this study of four calcareous forest soil profiles, the elemental compositions of different size fractions of water dispersible colloids (WDC) were investigated by asymmetric field flow fractionation....
Article
Full-text available
At two forest sites in Germany (Pfaffenwinkel, Pustert) stocked with mature Scots pine (Pinus sylvestris L.), we investigated changes of topsoil chemistry during the recent forty years by soil inventories conducted on replicated control plots of fertilization experiments, allowing a statistical analysis. Additionally, we monitored the nutritional s...
Article
Particularly on sites with shallow, nutrient-poor soils, forest soil organic surface layers (O layers) are important for the storage of plant-available nutrients and water, and thus for forest vitality and productivity. O layers can contain up to 70 mass percent of inorganic compounds (minerals) which may be spatially separated from or closely asso...
Article
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Phosphorus (P) nutrition of forest trees depends on soil P supply, which is poor on sites with sandy, quartz-rich soils and shallow calcareous soils. Soil P is distributed heterogeneously at different spatial scales. I tested the hypothesis that in P-limited forest ecosystems soil P enrichment in hotspots results in improved tree P nutrition and gr...
Article
Phosphorus (P) is an essential element for life on Earth, with an important and oftentimes unaccounted organic biogeochemical component. Current methods for the quantification of different organic P compounds in environmental samples (e.g., soils, sediments) are based on extraction techniques and often associated with incomplete P recovery or sampl...
Article
Full-text available
Bulk soil phosphorus speciation by X-ray absorption spectroscopy (XAS) using fluorescence yield-mode measurements is an important tool for phosphorus research because of the low soil P contents. However, when measuring in fluorescence mode, increasing the concentration of the absorbing atom can dampen the XAS spectral features because of self-absor...
Article
Full-text available
Bulk soil phosphorus speciation by X-ray absorption spectroscopy (XAS) using fluorescence yield-mode measurements is an important tool for phosphorus research because of the low soil P contents. However, when measuring in fluorescence mode, increasing the concentration of the absorbing atom can dampen the XAS spectral features because of self-absor...
Article
A correct quantification of soil surface and soil organic carbon (SOC) stocks is crucial for the evaluation of important soil functions, including atmospheric C sequestration. At present, soil science lacks (i) a clear definition of soil depth, (ii) consented procedures for soil sampling, as well as (iii) adequate awareness concerning pitfalls and...
Article
In Bavarian alpine forests, long-term input of organic matter from conifer species has built up thick organic surface layers, thus immobilized substantial soil organic phosphorus upon calcareous parent materials. The composition of these phosphorus stocks, however, remained unrevealed. Therefore, we analyzed organic phosphorus species in three so c...
Poster
Full-text available
This poster was presented at EGU 2019, with our first results on a workflow for P L-edge spectral analysis of soils. We show that a good agreement with the expected values can be reached for organic P compounds, when using non-linear background subtraction methods.
Article
Phosphorus (P) and sulfur (S) are essential elements for life, and peculiarities of Antarctic soils regarding their S and P status likely affect terrestrial and aquatic ecosystems in Antarctica. Current climate warming is accompanied by deglaciation, increased availability of water, and vegetation establishment in many regions of Antarctica. The ef...
Article
Phosphorus (P) K -edge X-ray absorption near-edge structure (XANES) spectra of orthophosphate (oPO 4 ) bound to soil Fe III minerals ( e.g. ferrihydrite, goethite) show a pre-edge signal at 2148–2152 eV. It is unknown whether organic P bound to Fe III oxyhydroxides also show this feature. Otherwise, Fe-bound soil P may be underestimated by P K -edg...
Article
Full-text available
Background and aims Phosphorus (P) availability is crucial for forest ecosystem productivity and soil organic matter (SOM) is an important source for P. This study was conducted to reveal carbon (C), nitrogen (N) and P distributions in functional SOM fractions. We hypothesised that (1) most of the organic P (Porg) is part of the particulate SOM, (2...
Article
We compared synchrotron-based C near-edge X-ray absorption fine structure (NEXAFS) and CPMAS13C nuclear magnetic resonance (NMR) spectroscopy with respect to their precision and accuracy to quantify different organic carbon (OC) species in defined mixtures of soil organic matter source compounds. We also used both methods to quantify different OC s...
Article
Full-text available
Phosphorus availability may shape plant–microorganism–soil interactions in forest ecosystems. Our aim was to quantify the interactions between soil P availability and P nutrition strategies of European beech (Fagus sylvatica) forests. We assumed that plants and microorganisms of P-rich forests carry over mineral-bound P into the biogeochemical P cy...
Article
The spatial heterogeneity of phosphorus (P) and different P forms in soils has implications for plant, microbial, and ecosystem P supply. Little information is available concerning the small-scale vertical and horizontal distributions of P and important variables for P binding at the soil profile scale. We assessed spatial patterns of total P and d...
Article
Full-text available
Soils comprise various heterogeneously distributed pools of lithogenic, free organic, occluded, adsorbed, and precipitated phosphorus (P) forms, which differ depending on soil forming factors. Small-scale heterogeneity of element distributions recently has received increased attention in soil science due to its influence on soil functions and soil...
Article
Full-text available
Background The establishment of mixed forest stands is nowadays seen as an opportunity to maintain forest services in the course of global climate change. Methods Thus, we determined forest floor and mineral soil pH, base saturation (BS) as well as exchangeable base cation stocks in adjacent groups of pure mature European beech (Fagus sylvatica),...
Article
Soil extraction with 0.1 M NaOH completely dissolves X-ray amorphous as well as crystalline AlPO4 and FePO4. Extraction with acidic NH4 oxalate completely mobilizes X-ray amorphous AlPO4 and FePO4 in addition to phosphate adsorbed to poorly-crystallized Al and Fe minerals, but only a minor portion of crystalline AlPO4 and FePO4. Extraction with dit...
Article
Full-text available
Climate warming is expected to induce soil organic carbon losses in mountain soils that result, in turn, in reduced soil fertility, reduced water storage capacity and positive feedback on climate change. Here we combine two independent sets of measurements of soil organic carbon from forest soils in the German Alps-repeated measurements from 1976 t...
Article
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The stage of pedogenesis is a crucial indicator describing phosphorus (P) distribution, but also governing spatial P distribution patterns. Here, we assessed spatial patterns of P fractions and major P binding partners (e.g. organic C, pedogenic Fe and Al minerals) in a geosequence to describe spatial and pedogenetic changes of P distribution and t...
Article
Full-text available
Direct speciation of soil phosphorus (P) by linear combination fitting (LCF) of P K -edge XANES spectra requires a standard set of spectra representing all major P species supposed to be present in the investigated soil. Here, available spectra of free- and cation-bound inositol hexakisphosphate (IHP), representing organic P, and of Fe, Al and Ca p...
Article
Phosphorus availability in terrestrial ecosystems is strongly dependent on soil P speciation. Here we present information on the P speciation of 10 forest soils in Germany developed from different parent materials as assessed by combined wet-chemical P fractionation and synchrotron-based X-ray absorption near-edge structure (XANES) spectroscopy. So...
Article
Phosphorus is one of the major limiting factors of primary productivity in terrestrial ecosystems and, thus, the P demand of plants might be among the most important drivers of soil and ecosystem development. The P cycling in forest ecosystems seems an ideal example to illustrate the concept of ecosystem nutrition. Ecosystem nutrition combines and...
Article
Full-text available
It is still open to question which method is the best for quantifying organic carbon (OC) and inorganic carbon (IC) in soils containing dolomite. The aims of this study were (1) to compare the accuracy of a novel thermal gradient (ThG), the classical calcimeter (CALC) and the loss-on-ignition (LOI) methods on a reference sample set with known propo...
Article
Full-text available
Phosphorus (P) in soils is most often bound as phosphate to one or more of the following four elements or compounds: calcium, aluminum, iron, and soil organic matter. A promising method for direct P speciation in soils is synchrotron-based X-ray absorption near edge structure (XANES) spectroscopy at the K-edge of P. However, the quality of this met...
Article
Full-text available
Forest soils store large stocks of soil organic matter (SOM) and are of vital importance for the ecosystem supply with nutrients and water. According to the available literature, depending on management regime and site properties, different negative and positive effects of forest management (particularly of forest thinnings and shelterwood cuttings...
Article
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Background and aims For the mountain forests of the Alps, limited comprehensive information is available about soil stocks of important nutrients (N, P, K), stand nutrition, and relationships between soil status and stand nutrition. Methods We investigated total and plant-available soil N, P, and K stocks and the nutritional status of Picea abies c...
Conference Paper
Background/Question/Methods X-ray spectromicroscopy is extremely suitable to probing soil microsites with high spectral and high spatial resolution. Routinely, X-ray microprobes reach sub-micrometer spatial resolutions, whereas nanoprobes image even sub-100nm sized structures. Clear images without scattering background are obtained even when stud...
Article
Background and aims Differences in chemical composition of root compounds and root systems among tree species may affect organic matter (OM) distribution, source and composition in forest soils. The objective of this study was to elucidate the contribution of species specific cutin and suberin biomarkers as proxies for shoot- and root-derived organ...
Article
The primary productivity of terrestrial ecosystems is influenced by soil phosphorus bioavailability, which depends largely on chemical fractions of phosphorus. The sequential fractionation technique developed by Hedley et al. or its subsequent modification is a well-known method to determine soil phosphorus forms. Hedley sequential fractionation te...
Article
Full-text available
Each tree species has a unique chemical composition, and also various tree tissues differ in their chemistry. Analysis of lignin phenols and cutin-and suberin-derived aliphatic monomers was employed to investigate wheter their composition can be traced back after decay and transformation into soil organic matter (SOM) to study SOM source, degradati...
Article
Forest soils represent an important part of the global C cycle as they store large amounts of organic carbon (OC). With its great importance for nutrient and water supply, soil organic matter (SOM) is a key site characteristic particularly in shallow mountain soils. We conducted soil humus inventories in three research areas in the Bavarian Limesto...
Article
Full-text available
Temperate forest soils of central Europe are regarded as important pools for soil organic carbon (SOC) and thought to have a high potential for carbon (C) sequestration. However, comprehensive data on total SOC storage, particularly under different forest types, and its drivers is limited. In this study, we analyzed a forest data set of 596 complet...
Article
Phosphorus (P) is a crucial element for life on Earth, and the bioavailability of P in terrestrial ecosystems, which is dependent on the soil P stock and its speciation, may limit ecosystem productivity and succession. In our study, for the first time a direct speciation of soil P in two glacier foreland chronosequences has been conducted using syn...
Article
In regions with little atmospheric input of sulphur (S) and S-poor parent material, the bio-availability of S, which is dependent on its speciation, may limit ecosystem production and succession. In our study, soil S speci-ation in two glacier forefield soil chronosequences (Hailuogou Glacier, Gongga Shan, China; Damma Glacier, Swiss Alps) was inve...
Article
Full-text available
Background and aims We investigated the potential of non-cellulosic polysaccharides (NCP) as biomarkers to identify the plant types that dominate present and past litter input into organic surface covers on calcareous Alpine soils and to reveal historic vegetation changes. Methods At two sites in the Alps, NCP monomers were quantified in different...
Article
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The Hailuogou Glacier (Gongga Mountain, SW China) has been retreating in response to global warming. A soil chronosequence (Hailuogou Chronosequence) has developed in the retreat area, and a primary plant succession has developed on it. To investigate the changes of soil phosphorus (P) fractions along the young soil chronosequence in the cold and h...
Article
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We investigated soil samples of four burnt slopes in the Tyrolean Limestone Alps of varying age after fire (wildfires occurred in 2003, 1962, 1946, and in 1250 AD) as well as of the surrounding soils that were not affected by combustion. Charcoal content of the O and A horizons was determined as well as pH, soil organic matter content and C/N ratio...
Article
Full-text available
This paper aims to enhance the credibility of applying the sulfur K-edge XANES spectroscopy as an innovative “fingerprint” for characterizing environmental samples. The sensitivities of sulfur K-edge XANES spectra of ten sulfur compound standards detected by two different detectors, namely, Lytle detector (LyD) and Germanium detector (GeD), were st...
Article
Ultrasonication is widely used in soil organic matter (SOM) fractionation studies to break up soil aggregates to disperse the soil into its primary particles. An increasing number of studies also aim to incubate SOM fractions obtained by physical soil fractionation to study the bioavailability of different soil organic C (SOC) pools. To evaluate po...
Article
At 18 sites in Bavaria (Germany) with substantial difference in elevation, parent material, climate, and stand age, which encompass most variance of site properties to be found in Central Europe, the effects of a replacement of Norway spruce (Picea abies L. Karst.; 16 sites) or Scots pine (Pinus sylvestris L.; two sites) by Douglas fir (Pseudotsuga...
Article
In recent years, the relevance of physico-chemical heterogeneity patterns in soils at the micron and submicron scale for the regulation of biogeochemical processes has become increasingly evident. For an organic surface soil horizon from a forested Histosol in Germany, microspatial patterns of element distribution (sulfur, phosphorus, aluminium, si...
Article
Defined, quartz-diluted mixtures of sulfur (S) compounds with different oxidation state (OS) were analyzed by K-edge XANES spectroscopy using linear combination fitting (LCF) and spectrum deconvolution by fitting several Gaussian and arctangent functions (GCF). Additionally, for different soils the S speciation as calculated by both methods was com...
Article
The phosphorus (P) speciation of organic surface layers from two adjacent German forest soils with different degree of water-logging (Stagnosol, Rheic Histosol) was analyzed by P K-edge XANES and subsequent Linear Combination Fitting. In both soils, approximate to 70% of the P was inorganic phosphate and approximate to 30% organic phosphate; reduce...
Article
For two Scots pine (Pinus sylvestris) ecosystems in S Germany with different atmospheric N deposition (Pfaffenwinkel, intermediate N deposition; Pustert, large N deposition), the supply with phosphorus (P) has been monitored for unfertilized and fertilized plots over more than four decades by foliar analysis (1964–2007). Additionally, topsoil conce...
Article
Full-text available
X-ray microscopy is capable of imaging particles in the nanometer size range directly with sub-micrometer spatial resolution and can be combined with high spectral resolution for spectromicroscopy studies. Two types of microscopes are common in X-ray microscopy: the transmission X-ray microscope and the scanning transmission X-ray microscope; their...
Article
Full-text available
To test whether synchrotron-based spectromicroscopy can be used to identify spatial patterns of sulfur (S) and iron (Fe) speciation as well as relationships between the speciation of S and Fe in soil colloids or aggregates at the micrometre and sub-micrometre level, an anoxically prepared dissected soil aggregate (size approximately 1 mm(3)) was an...
Article
Full-text available
Relationships among ungulate pressure, stand regeneration, microclimate, and snowpack dynamics were investigated at three protection forest sites in the mixed mountain forest zone of the Bavarian Limestone Alps. The study was conducted at plots located inside and outside ungulate exclosures which had been established about 35 years ago. Air and top...
Article
For a toposequence with increasing groundwater influence (Cambisol, Stagnosol, Histosol) and with different groundwater regimes (Histosols 1 and 2) in a forested watershed in the Fichtelgebirge (Germany), the speciation of sulfur (S) and iron (Fe) in the soils was assessed by X-ray absorption near-edge spectroscopy (XANES) after anoxic and conventi...
Article
Few data are available on the relative importance of different site-specific factors (e.g. topographic parameters, vegetation, soil-specific factors) for soil organic carbon (SOC) distribution in northern forests. Moreover, an increasing frequency of large-scale forest dieback in these forests may change the SOC stock and its spatial distribution....
Article
In forested catchments, retention and remobilization of S in soils and wetlands regulate soil and water acidification. The prediction of long-term S budgets of forest ecosystems under changing environmental conditions requires a precise quantification of all relevant soil S pools, comprising S species with different remobilization potential. In thi...
Article
Times Cited: 0 Meeting Abstract English Cited References Count: 0 460YS THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND OXFORD Suppl. S
Article
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Long-term effects of reduced ungulate populations (Red deer Cervus elaphus L., chamois Rupicapra rupicapra L., roe deer Capreolus capreolus L.) on stand regeneration, soil quality, and tree nutrition were assessed at four forested sites in the Bavarian Alps with calcareous bedrock (dolomite) and soils. The sites comprise steep (25-30°) slopes with...
Article
To investigate the potential of synchrotron-based X-ray Absorption Near-Edge Structure spectroscopy (XANES) at the sulphur (S) K-edge for a discrimination of adsorbed and precipitated sulphate in soils and soil particles, XANES spectra of ionic sulphate compounds and Al/Fe hydroxy sulphate minerals were compared with spectra of SO42− adsorbed to fe...
Article
Minerals with large specific surface areas promote the stabilization of soil organic matter (SOM). We analysed three acidic soils (dystric, skeletic Leptic Cambisol; dystric, laxic Leptic Cambisol; skeletic Leptic Entic Podzol) under Norway spruce (Picea abies) forest with different mineral compositions to determine the effects of soil type on carb...
Article
Full-text available
X-ray spectromicroscopy is a powerful tool for addressing key questions in the environmental sciences due to its high spectral and spatial resolution. It has been used successfully for material research, biology and environmental studies, e.g. in the form of -X-ray fluorescence and spectromicroscopy with a spatial resolution of References: 6 refer...
Article
Full-text available
Abstract: Height growth of 19 Scots pine (Pinus sylvestris) and Norway spruce (Picea abies) stands in Germany, Austria and Finland, for which long-term records of foliar nutrient levels were available, was assessed retrospectively by stem analyses and compared with data from regionally applied yield tables as references. Gridded historical time ser...
Book
Full-text available
Forest growth in Europe has been increasing during the last decades. The possible causes suggested to explain this have been increasing atmospheric carbon dioxide concentration, improved temperature and precipitation climate, increasing nitrogen deposition and better management. In this book complementary approaches are used to discriminate between...