“…Badia et al [ 43 ], who investigated the forest soil catena in the Moncayo massif (Iberian Range, SW Europe), found that with increasing altitude, the pH value, the degree of base saturation, and the content of exchangeable potassium and fine dust particles decrease significantly, while the content of organic matter, the ratio C/N, stability of soil aggregates, water repellence of soil, and the content of coarse sand particles increase significantly. On the other hand, in the dry deciduous forest of the Western Ghats of Tamil Nadu, Kanagaraj et al [ 44 ] found that organic carbon, water-soluble carbon, and even soil pH were positively correlated with an altitude, with a rate of correlation coefficient of 0.92, 0.87, and 0.75, respectively. Zhang et al [ 45 ], who studied the spatial distribution of SOC and N stocks in soils of nine vegetation types along an altitude gradient (600–4500 m) in southwestern China, report that total organic carbon and nitrogen also increased with elevation and were positively correlated with mean annual temperature and precipitation.…”