Factors controlling dissolved organic carbon (DOC), dissolved organic nitrogen (DON) and DOC/DON ratio in arable soils based on a dataset from Hungary

Filep, Tibor; Rékási, Márk

doi:10.1016/j.geoderma.2011.03.002

Cited by 101 publications

(51 citation statements)

References 61 publications

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“…Previous studies under different climate conditions and management practices also reported similar findings of positive correlation between organic matter and TN in soils. (Barrett and Burke, 2000;Filep and Rékási, 2011;ParrasAlcántara et al, 2013;Hu et al, 2014;Parras-Alcántara and Lozano-García, 2014). In respect to the soil layers, the analyses revealed that the TN content was significantly greater in the topsoil (Table 2), which is similar to the findings of previous studies (Parras-Alcántara et al, 2013;Yu and Jia, 2014).…”

Section: Total Nitrogensupporting

confidence: 86%

“…Total carbon (TC), total nitrogen (TN) and total sulphur (TS) contents of the soils were identified using an elemental analysis device (an Elementar vario MACRO cube CHNS elemental analyzer). A wet combustion method (Sparks et al, 1996), Yoder wet-sieving method (Dane et al, 2002), and hydrometer method (Gee et al, 1986) were used for identifying the organic matter content, aggregate stability (1-2 mm aggregates), and particle size distribution of the soils. The pH values of the soils were measured in the 1 : 2.5 soil-water suspension (Conklin, 2005).…”

Section: Sampling Pattern and Soil Analysesmentioning

confidence: 99%

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Comparison of wheat and safflower cultivation areas in terms of total carbon and some soil properties under semi-arid climate conditions

Turgut

2015

Solid Earth

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Abstract. The aim of this study was to compare the soils of the wheat cultivation area (WCA) and the safflower cultivation area (SCA) within semi-arid climate zones in terms of their total carbon, nitrogen, and sulphur contents, particle size distribution, aggregate stability, organic matter content, and pH values. This study presents the results from the analyses of 140 soil samples taken at two soil layers (0-10 and 10-20 cm) in the cultivation areas. At the end of the study, it was established that there were significant differences between the cultivation areas in terms of soil physical properties such as total carbon (TC), total nitrogen (TN), total sulphur (TS) contents and pH, while only the TN content was significantly different between the two soil layers. Moreover, significant differences were identified between the cultivation areas in terms of soil physical properties including clay and sand contents, aggregate stability, and organic matter content, whereas the only significant difference found among the soil layers was that of their silt content. Since safflower contains higher amounts of biomass than wheat, we found higher amounts of organic matter content and, therefore, higher amounts of TN and TS content in the soils of the SCA. In addition, due to the fact that wheat contains more cellulose -which takes longer to decompose -the TC content of the soil in the WCA was found to be higher than that in the SCA. The results also revealed that the WCA had a higher carbon storage capacity.

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Section: Total Nitrogensupporting

confidence: 86%

Section: Sampling Pattern and Soil Analysesmentioning

confidence: 99%

Comparison of wheat and safflower cultivation areas in terms of total carbon and some soil properties under semi-arid climate conditions

Turgut

2015

Solid Earth

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“…In previous studies (e.g. Kalbitz et al, 2000;Filep and Rekasi, 2011), significant relationships were found between the DOC concentration of the soil and fundamental parameters. As reported above, the pH, sand content, total soluble N (TSN) and dehydrogenase activity (DHA) were selected by MDS for creating SQI values for the SMS dataset, which involves 190 soils from agricultural areas.…”

Section: Discussionmentioning

confidence: 84%

The dissolved organic matter as a potential soil quality indicator in arable soils of Hungary

Filep

Draskovits

Szabó

et al. 2015

Environ Monit Assess

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“…Due to an increase in dissociation of functional groups in acids, an increase in the solubility of organic matter can also occur at higher pH values (Andersson et al 2000). The research performed under field conditions by Chapman et al (1995), Xi et al (2007) as well as Filep and Rekasi (2011) did not confirm the effect of pH on the content of soluble compounds of organic carbon in soil, and the reports by Kalbitz et al (2000) show that under field conditions, the effect of pH on DOC dynamics is inconsiderable.…”

Section: Introductionmentioning

confidence: 93%

Seasonal changes in the content of dissolved organic matter in arable soils

Rosa

Dębska

2017

J Soils Sediments

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Purpose The aim of this paper has been to determine the seasonal changes in the content of dissolved organic matter (DOM) in the soils under agricultural use based on assaying changes in dissolved organic carbon (DOC) and dissolved nitrogen (DNt) as well as determining the factors which can define the DOM in soils. Materials and methods The research has involved the soils under agricultural use sampled in the Kujawsko-Pomorskie province (Poland). Phaeozems and Luvisols were sampled from the depth of 0-30, 30-60, and 60-100 cm, November 2011 through September 2013, in November, March, May, July, and September. The soil samples were assayed for the grain size composition, pH, dry weight content, content of total organic carbon, and total nitrogen. Dissolved organic matter was extracted with 0.004 mol dm 3 CaCl 2 ; in the DOM extracts, the content of dissolved organic carbon (DOC) and dissolved nitrogen (DNt) were assayed. The research results were statistically verified. Results and discussion It has been demonstrated that in the first year of research, the content of dissolved organic carbon in the soils was changing throughout the year. The highest differences in the content of that carbon fraction occurred across the soil sampled in autumn and the soil sampled in spring. In the second year of research, an inverse dependence was noted. DOC was migrating to deeper layers of the soil profile; yet, the migration got more intensive in summer. The content of dissolved nitrogen was not changing significantly throughout the year. Higher DNt content in the surface layer, in general, resulted in a higher content of dissolved nitrogen in deeper profile layer, which could have been due to leaching of the nutrient deep down the soil profile. Conclusions The content of dissolved organic carbon was significantly related to the content of total organic carbon and total nitrogen. Significant changes in the content of dissolved forms of nitrogen were reported in the profile of Phaeozems due to mineral fertilization and irrigation. The soils where irrigation and higher nitrogen rates had been applied demonstrated a higher content and share of soluble forms of nitrogen, as compared with the soils non-irrigated and the soils where lower nitrogen rates had been supplied.

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Factors controlling dissolved organic carbon (DOC), dissolved organic nitrogen (DON) and DOC/DON ratio in arable soils based on a dataset from Hungary

Cited by 101 publications

References 61 publications

Comparison of wheat and safflower cultivation areas in terms of total carbon and some soil properties under semi-arid climate conditions

Comparison of wheat and safflower cultivation areas in terms of total carbon and some soil properties under semi-arid climate conditions

The dissolved organic matter as a potential soil quality indicator in arable soils of Hungary

Seasonal changes in the content of dissolved organic matter in arable soils

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