Impact of vegetation type on the content and spectroscopic properties of soil organic matter in the subalpine zone of the Bieszczady Mountains (Eastern Carpathians)
Patrycja Kramarczuk, Łukasz Musielok, Mateusz Stolarczyk, Łukasz Jelonkiewicz, Volodymyr A. Nikorych, Wojciech Szymański
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引用次数: 0
Abstract
Aims
This study aimed to define how vegetation affects the content and chemistry of soil organic matter (SOM) in topsoil (O and A) horizons under blueberry shrubs (Vaccinietum myrtilli) and tall-grass vegetation in the subalpine zone of the Bieszczady Mountains (Eastern Carpathians, SE Poland).
Methods
Topsoil samples (O and A horizons) were collected from ten sites covered with Vaccinium myrtillus L. and at ten sites covered with tall-grass vegetation. Above- and belowground parts of vegetation from each vegetation type were sampled. Total carbon (TC) and nitrogen (TN) content in soil and vegetation samples were determined using an elemental analyzer. SOM chemical properties were determined via Fourier-transform infrared spectroscopy and UV-Vis spectrophotometry. The mineral composition of the A horizons was determined via X-ray diffractometry (XRD).
Results
V. myrtillus L. showed significantly higher TC content and C/N ratio in its aboveground parts compared to tall-grass vegetation, though TN content was significantly lower. FTIR-ATR spectra showed more intense absorption bands for V. myrtillus L. The soil mineral composition was similar across vegetation types. Soils under blueberry shrubs showed significantly higher mean content of organic carbon and TN in the O horizon compared to tall-grass vegetation, with no significant differences in the A horizon.
Conclusions
Topsoil horizons under blueberry shrubs show higher soil organic carbon (SOC) content and C/N ratios than those under tall-grasses. Our results suggest that shrubification may affect carbon concentration in the soil; however, the lack of bulk density measurements prevents the quantification of SOM content and overall carbon sequestration, necessitating further studies.
期刊介绍：
Plant and Soil publishes original papers and review articles exploring the interface of plant biology and soil sciences, and that enhance our mechanistic understanding of plant-soil interactions. We focus on the interface of plant biology and soil sciences, and seek those manuscripts with a strong mechanistic component which develop and test hypotheses aimed at understanding underlying mechanisms of plant-soil interactions. Manuscripts can include both fundamental and applied aspects of mineral nutrition, plant water relations, symbiotic and pathogenic plant-microbe interactions, root anatomy and morphology, soil biology, ecology, agrochemistry and agrophysics, as long as they are hypothesis-driven and enhance our mechanistic understanding. Articles including a major molecular or modelling component also fall within the scope of the journal. All contributions appear in the English language, with consistent spelling, using either American or British English.
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