61 results on '"Knicker, Heike"'
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2. Phosphorus species and chemical composition of water hyacinth biochars produced at different pyrolysis temperature
3. Recycling pyrolyzed organic waste from plant nurseries, rice production and shrimp industry as peat substitute in potting substrates
4. Biochar amendment increases bacterial diversity and vegetation cover in trace element-polluted soils: A long-term field experiment
5. Confirmation by solid-state NMR spectroscopy of a strong complex phenol-dietary fiber with retention of antioxidant activity in vitro
6. Influence of inorganic additives on wheat straw composting: Characterization and structural composition of organic matter derived from the process
7. Chemical, physical and morphological properties of biochars produced from agricultural residues: Implications for their use as soil amendment
8. Does ectomycorrhiza have a universal key role in the formation of soil organic matter in boreal forests?
9. Quantitative forecasting black (pyrogenic) carbon in soils by chemometric analysis of infrared spectra
10. Mulching-induced preservation of soil organic matter quality in a burnt eucalypt plantation in central Portugal
11. Surfactant properties of humic acids extracted from volcanic soils and their applicability in mineral flotation processes
12. Long term change in chemical properties of preindustrial charcoal particles aged in forest and agricultural temperate soil
13. Sorption of hydrophobic organic compounds to a diverse suite of carbonaceous materials with emphasis on biochar
14. Factors affecting the molecular structure and mean residence time of occluded organics in a lithosequence of soils under ponderosa pine
15. Partitioning of N in growing plants, microbial biomass and soil organic matter after amendment of N-ammonoxidized lignins
16. Biodegradability of organic matter in fire-affected mineral soils of Southern Spain
17. Black carbon contribution in volcanic soils affected by wildfire or stubble burning
18. Carbon and nitrogen degradation on molecular scale of grass-derived pyrogenic organic material during 28 months of incubation in soil
19. Pyrogenic organic matter in soil: Its origin and occurrence, its chemistry and survival in soil environments
20. Contribution of black carbon in recent sediments of the Gulf of Cadiz: Applicability of different quantification methodologies
21. Solid state CPMAS 13C and 15N NMR spectroscopy in organic geochemistry and how spin dynamics can either aggravate or improve spectra interpretation
22. Bioavailability of N released from N-rich pyrogenic organic matter: An incubation study
23. Soil organic N - An under-rated player for C sequestration in soils?
24. Knowledge gaps in soil carbon and nitrogen interactions – From molecular to global scale
25. “Black nitrogen” – an important fraction in determining the recalcitrance of charcoal
26. Nature and reactivity of charcoal produced and added to soil during wildfire are particle-size dependent
27. Fate of microbial biomass-derived amino acids in soil and their contribution to soil organic matter
28. Mineralisation and structural changes during the initial phase of microbial degradation of pyrogenic plant residues in soil
29. Tree girdling provides insight on the role of labile carbon in nitrogen partitioning between soil microorganisms and adult European beech
30. Biomolecular characteristics of an extensive tar layer generated during eruption of the Soufrière Hills volcano, Montserrat, West Indies
31. Structural domains in peat as revealed by physical fractionation, sequential chemolysis and 15N and 13C CPMAS NMR spectroscopy
32. A new conceptual model for the structural properties of char produced during vegetation fires
33. Use of multiple biogeochemical parameters to monitor the recovery of soils after forest fires
34. Decomposition and substrate quality of leaf litters and fine roots from three exotic plantations and a native forest in the southwestern highlands of Ethiopia
35. Sulfur K-edge XANES spectroscopy reveals differences in sulfur speciation of bulk soils, humic acid, fulvic acid, and particle size separates
36. Effect of residual vanadyl on the spectroscopic analysis of humic acids
37. Organic matter in constructed soils from a coal mining area in southern Brazil
38. Heterocyclic N in the highly humified humic acids extracted from the subsoil of paddy fields and surface ando soils
39. Chemical characteristics of dissolved organic nitrogen in an oligotrophic subtropical coastal ecosystem
40. Condensation degree of burnt peat and plant residues and the reliability of solid-state VACP MAS 13C NMR spectra obtained from pyrogenic humic material
41. Fire-induced transformation of C- and N- forms in different organic soil fractions from a Dystric Cambisol under a Mediterranean pine forest ( Pinus pinaster)
42. New pyrolytic and spectroscopic data on Orgueil and Murchison insoluble organic matter: A different origin than soluble?
43. The effect of fire on soil organic matter—a review
44. Preservation of peptide moieties in three Spanish sulfur-rich Tertiary kerogens
45. Rearrangement of carbon and nitrogen forms in peat after progressive thermal oxidation as determined by solid-state 13C- and 15N-NMR spectroscopy
46. Changes in the structure and protein binding ability of condensed tannins during decomposition of fresh needles and leaves
47. MALDI-TOF mass spectrometry and PSD fragmentation as means for the analysis of condensed tannins in plant leaves and needles
48. Effect of N content and soil texture on the decomposition of organic matter in forest soils as revealed by solid-state CPMAS NMR spectroscopy
49. Refractory organic carbon in particle-size fractions of arable soils I: distribution of refractory carbon between the size fractions
50. The feasibility of using DCPMAS 15N 13C NMR spectroscopy for a better characterization of immobilized 15N during incubation of 13C- and 15N-enriched plant material
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