Хан Хөхийн нурууны ар өвөр хажуугийн хөрсөн бүрхэвчийн онцлог, хөрсний шинж чанар. (Mongolian)

Soil cover and properties of the northand south-facing slopes of Khan Khukhii Mountain. (English)

The primary objective of our study was to explore the soil cover patterns and soil characteristics between the north- and south-facing slopes of Khan Khukhii Mountain. We collected soil samples from nine soil profiles along a linear transect, which covered an area of the north- and south-facing slopes of Khan Khukhii Mountain. In total, 38 soil samples were collected and analyzed for morphological and chemical properties including pH, calcium carbonate (CaCO3), humus content, and available potassium (K2O), as well as physical properties such as gravel, sand, silt, and clay content. Tukey test was employed to detect differences between the slopes using these parameters. We found distinct differences in soil patterns between the north- and south-facing slopes. More specifically, Aridic Kastanozem, Kastanozem, Leptic Umbrisols, and Regosols were predominant on the north-facing slope, whereas Leptosols, Calcisols Aridic, and Gypsisols were predominant on the south-facing slope. According to the Tukey test, significant differences between the north- and south-facing slopes were found in CaCO3, humus content, and K2O (p<0.05). Notably, the amount of CaCO3 at the 0-30 cm depth range was higher on the south-facing slope than on the north-facing slope. Also, significant differences between the north- and south-facing slopes were found in gravel (p<0.05), and the south-facing slope had more gravel and coarse sand than the north-facing slope, which had a predominance of silt particles. In conclusion, the types and properties of soils distributed on the south- and northfacing slopes of the Khan Khukhii Mountain are distinct. [ABSTRACT FROM AUTHOR]

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