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Ellerbrock, Ruth H.; Höhn, Axel; Gerke, Horst H.

doi:10.1023/a:1004511714538

Cited by 65 publications

(10 citation statements)

References 14 publications

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“…The intensity of Band A in the FTIR spectra relative to that of Band C (A/C ratio) provided information about the relative proportion of hydrophobic groups in the sample. Infrared peak assignment was performed according to Cheshire et al (1993), Ellerbrock et al (2005Ellerbrock et al ( , 1999, Hesse et al (2002), and Steinbeiss et al (2009).…”

Section: Fourier Transform Infrared Analysismentioning

confidence: 99%

Effect of Hydrothermally Carbonized Char Application on Trace Gas Emissions from Two Sandy Soil Horizons

et al. 2014

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The application of biochar to soil is a potential tool for the long-term sequestration of C and a possible mitigation of greenhouse gas (GHG) emissions. Among the various processes available to produce biochar, hydrothermal carbonization is one technique that is suitable for moist feedstock like digestates from biogas production. The aim of this study was to investigate the stability of C and emissions of NO after the addition of (i) digested wheat ( L.) straw (digestate) and (ii) hydrothermally carbonized (HTC) char of wheat straw as well as (iii) HTC char of digested wheat straw to two soil horizons that differed in C content. The HTC chars were obtained from wheat straw and digested wheat straw that were hydrothermally carbonized at 230°C for 6 h. The digestate and HTC chars were mixed with soil and incubated in 125-mL vessels. The GHG emissions of CO and NO were measured at regular intervals. Additionally, after 108 d, N was applied in the form of NHNO equivalent to 100 kg N ha. After 500 d of incubation, the digestate had lost 34% of C, while the soil mixture with the corresponding HTC char lost 12% of C in the form of CO from the topsoil. The estimated bi-exponential half-life of the recalcitrant C was more than 50% longer for the carbonized material than for the untreated digestate. The NO emissions from both HTC chars were significantly reduced compared with untreated digestate. The reductions were up to 64% for the topsoil and 60% for the subsoil samples. These laboratory results show that HTC holds the potential to increase the C stability of fermented and carbonized biomasses and to reduce NO emissions.

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Section: Fourier Transform Infrared Analysismentioning

confidence: 99%

Effect of Hydrothermally Carbonized Char Application on Trace Gas Emissions from Two Sandy Soil Horizons

et al. 2014

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“…In TCS, TEB was much lower and ranged from 2.3 to 4.7 cmol(+)·kg -1 , whereas CEC ranged from 5.0 to 5.8 cmol(+)·kg -1 . Also in this variant, organic OL/f horizons exhibited the best exchange potential which is connected with excellent soil organic matter (SOM) exchange properties (Ellerbrock et al, 1999).…”

Section: Soil Characteristic On the Spoil Heapmentioning

confidence: 79%

“…Low content of organic matter and related low total nitrogen and organic carbon accumulation are the common limiting features of reclaimed mine soils (RMS) (Bendtfeld, et al, 2001). Soil organic matter is especially important in determining other qualities of mine soils (Anderson, 1977;Roberts et al, 1988;Li and Daniels, 1994;Ellerbrock et al, 1999;West and Wali, 2002). Total accumulation of organic carbon (C org ) in both types of soils was similar and averaged over 54.0 Mg·ha -1 ( Table 2).…”

Section: Macronutrient Accumulation In Soilmentioning

confidence: 95%

“…This was of key importance in providing nutrients to trees as a limited amount of nutrients in soil could be compensated for by quick biological cycling of elements (Puchalski and Prusinkiewicz, 1975). Soil organic matter (SOM), even though in its initial phase of accumulation, plays an important role in the tree nutrition balance in reclaimed areas (Roberts et al, 1988;Rumpel et al, 1999;Ellerbrock et al, 1999). In the investigated podzol, the highest percentage of exchangeable Ca 2+ , Mg 2+ , Na + and P (in available form) compared to total forms occurred in organic horizons (Ol and Ofh; 0 − 9 cm) and amounted to 43, 49, 35 and 18 %, respectively of the total elemental pool.…”

Section: Relationships Between Elements In Soilmentioning

confidence: 99%

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Macronutrient Accumulation and Relationships in a Scots Pine (Pinus Sylvestris L.) Ecosystem on Reclaimed Opencast Lignite Mine Spoil Heaps in Central Poland

Pietrzykowski¹

2008

ASMR

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The aim of this study was to determine the sources, accumulation rate and relationships between macronutrients in reclaimed mine soils (RMS) and aboveground plant biomass on external slopes of lignite mines in central Poland. The study was conducted on two different types of sites with 10-year-old Scots (Pinus sylvestris L.) pine stands located on Quaternary loamy sands (QLS) and on Tertiary acidic carboniferous sands following neutralisation (TCS). The control plot was located in the same vicinity on an external slope in a natural pine ecosystem on a Haplic Podzol in a young mixed coniferous forest habitat (NPE). The nutrient resources, apart from N, were higher in RMS than in comparable Haplic Podzols, however, N primarily accumulated in the mineral horizons. In forest soils, the main macronutrient resources were accumulated in organic horizons, which in natural soils of coniferous forest habitats constitute the main source of nutrients. The proportion of individual macronutrients accumulated in the biomass vs. pools in soil was much lower on the external slope RMS than in the natural site, which in view of the potential richness of RMS, indicated poorer sorption and utilization of macronutrients in aboveground plant biomass than in natural habitats. Other important linear correlations (p=.05) were found between the sources of nutrients in RMS and elements accumulated in biomass (most clearly in case of K, Ca and Mg), which indicates important relationships between soil and vegetation in the first stages of ecosystem development as stimulated by reclamation.

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“…(Preston, 1996;Nebbioso and Piccolo, 2013;Ellerbrock and Gerke, 2013). These techniques provide information on the composition and functional groups of DOM.…”

Section: Introductionmentioning

confidence: 99%