FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W3173646586> ?p ?o ?g. }

• W3173646586 abstract "&lt;p&gt;The aim of this research was to study the effect of different plants on soil organic matter (SOM) composition. The composition of SOM was studied in a field experiment established in 1964 on a carbonaceous glacial till soil with very low initial SOC concentration (1.28 g kg&lt;sup&gt;-1&lt;/sup&gt;). The effects on SOM composition of bare fallow, barley, grasses, and clover-grasses mixture, were studied using 13C nuclear magnetic resonance (NMR) spectroscopy which is a common tool to characterize SOM. In 2014 the soil samples were collected from 0-5 cm soil layer, air-dried samples sieved through a 2-mm sieve and pretreated with 10% HF solution before NMR spectroscopy analysis. Samples of bulk soil and density fractionated mineral fraction (John et al., 2005) were analyzed. Also, a sample from barley treatment collected in 1966 was analyzed.&lt;/p&gt;&lt;p&gt;O/N-alkyl C was the most abundant C type at the start of the experiment and also in all treatments after 50 years. During 50 years the proportions of O/N-alkyl C and alkyl C increased but contributions of carboxyl C and aromatic C decreased. The ratio of alkyl C/O-alkyl C, which describes the degree of soil organic matter decomposition, decreased from 0.47 (in 1966) to 0.40-0.44 in treatments with plants. In bare fallow treatment, the SOM decomposition stage did not change a lot during the time. In soil mineral fraction the differences between treatments appeared more clearly and the degree of decomposition decreased in line: bare fallow&gt;barley&gt;clover-grasses&gt;grasses (0.49&gt;0.40&gt;0.36&gt;0.34) and this was due to higher O/N-alkyl-C content in treatments with plants. The higher O/N-alkyl C contribution in soil heavy fraction can be attributed to microbially synthesized carbohydrates (Yeasmin et al., 2020) and depended on the amount and properties of C input into the soil in different treatments.&lt;/p&gt;&lt;p&gt;In conclusion, the SOM composition was influenced by plant composition and the effect was more pronounced in soil mineral fraction. The SOM degree of decomposition was higher in treatment with annual crop (barley during 50 years). Under perennial grasses and clover-grasses mixture, the soil organic matter decomposition degree was lower.&lt;/p&gt;&lt;p&gt;This work was supported by the Estonian Research Council grant PSG147.&lt;/p&gt;&lt;p&gt;References&lt;/p&gt;&lt;p&gt;John, B., Yamashita, T., Ludwig, B., &amp; Flessa, H. (2005). Storage of organic carbon in aggregate and density fractions of silty soils under different types of land use. Geoderma, 128(1&amp;#8211;2), 63&amp;#8211;79. https://doi.org/10.1016/j.geoderma.2004.12.013&lt;/p&gt;&lt;p&gt;Yeasmin, S., Singh, B., Smernik, R. J., &amp; Johnston, C. T. (2020). Effect of land use on organic matter composition in density fractions of contrasting soils: A comparative study using 13C NMR and DRIFT spectroscopy. Science of the Total Environment, 726, 138395. https://doi.org/10.1016/j.scitotenv.2020.138395&lt;/p&gt;" @default.
• W3173646586 created "2021-07-05" @default.
• W3173646586 creator A5014029823 @default.
• W3173646586 creator A5066626621 @default.
• W3173646586 date "2021-03-04" @default.
• W3173646586 modified "2023-09-25" @default.
• W3173646586 title "NMR spectroscopy approach to study soil organic matter formation under different plant composition during 50 years" @default.
• W3173646586 doi "https://doi.org/10.5194/egusphere-egu21-12110" @default.
• W3173646586 hasPublicationYear "2021" @default.
• W3173646586 type Work @default.
• W3173646586 sameAs 3173646586 @default.
• W3173646586 citedByCount "0" @default.
• W3173646586 crossrefType "posted-content" @default.
• W3173646586 hasAuthorship W3173646586A5014029823 @default.
• W3173646586 hasAuthorship W3173646586A5066626621 @default.
• W3173646586 hasConcept C107872376 @default.
• W3173646586 hasConcept C124681953 @default.
• W3173646586 hasConcept C138885662 @default.
• W3173646586 hasConcept C13965031 @default.
• W3173646586 hasConcept C140793950 @default.
• W3173646586 hasConcept C159750122 @default.
• W3173646586 hasConcept C178790620 @default.
• W3173646586 hasConcept C182124840 @default.
• W3173646586 hasConcept C185592680 @default.
• W3173646586 hasConcept C18903297 @default.
• W3173646586 hasConcept C2780263894 @default.
• W3173646586 hasConcept C40231798 @default.
• W3173646586 hasConcept C41895202 @default.
• W3173646586 hasConcept C48743137 @default.
• W3173646586 hasConcept C6557445 @default.
• W3173646586 hasConcept C66974803 @default.
• W3173646586 hasConcept C86803240 @default.
• W3173646586 hasConceptScore W3173646586C107872376 @default.
• W3173646586 hasConceptScore W3173646586C124681953 @default.
• W3173646586 hasConceptScore W3173646586C138885662 @default.
• W3173646586 hasConceptScore W3173646586C13965031 @default.
• W3173646586 hasConceptScore W3173646586C140793950 @default.
• W3173646586 hasConceptScore W3173646586C159750122 @default.
• W3173646586 hasConceptScore W3173646586C178790620 @default.
• W3173646586 hasConceptScore W3173646586C182124840 @default.
• W3173646586 hasConceptScore W3173646586C185592680 @default.
• W3173646586 hasConceptScore W3173646586C18903297 @default.
• W3173646586 hasConceptScore W3173646586C2780263894 @default.
• W3173646586 hasConceptScore W3173646586C40231798 @default.
• W3173646586 hasConceptScore W3173646586C41895202 @default.
• W3173646586 hasConceptScore W3173646586C48743137 @default.
• W3173646586 hasConceptScore W3173646586C6557445 @default.
• W3173646586 hasConceptScore W3173646586C66974803 @default.
• W3173646586 hasConceptScore W3173646586C86803240 @default.
• W3173646586 hasLocation W31736465861 @default.
• W3173646586 hasOpenAccess W3173646586 @default.
• W3173646586 hasPrimaryLocation W31736465861 @default.
• W3173646586 hasRelatedWork W11973801 @default.
• W3173646586 hasRelatedWork W13547406 @default.
• W3173646586 hasRelatedWork W1628938 @default.
• W3173646586 hasRelatedWork W17492307 @default.
• W3173646586 hasRelatedWork W20357270 @default.
• W3173646586 hasRelatedWork W20921760 @default.
• W3173646586 hasRelatedWork W24040756 @default.
• W3173646586 hasRelatedWork W451598 @default.
• W3173646586 hasRelatedWork W6839453 @default.
• W3173646586 hasRelatedWork W8368914 @default.
• W3173646586 isParatext "false" @default.
• W3173646586 isRetracted "false" @default.
• W3173646586 magId "3173646586" @default.
• W3173646586 workType "article" @default.