“…(Fox 1985 Klinka et al (1981) Lewis and Lavkulich (1972), who found that the pH ofthe H horizons decreased with increasing elevation, and Witty and Arnold (1970) For most of the folic materials. the carbon content was greater than 4O7o (Table 5) (Sheldrick 1984 c. Cole and Gessel (1965) Snyder and Pilgrim (1985) …”
“…(Fox 1985 Klinka et al (1981) Lewis and Lavkulich (1972), who found that the pH ofthe H horizons decreased with increasing elevation, and Witty and Arnold (1970) For most of the folic materials. the carbon content was greater than 4O7o (Table 5) (Sheldrick 1984 c. Cole and Gessel (1965) Snyder and Pilgrim (1985) …”
“…The organic horizons present at the surface of mineral soils are designated by the symbol O and the arabic number I or 2 to mark differences in degree of decomposition. The 01 horizon corresponds to the L and some F layers, the 02 horizon corresponds to the H layer and some F layers (Soil Survey Staff 1975 Klinka et al (1981), Bochter and Zech (1985), Fox (1985), Snyder and Pilgrim (1985), Tarnocai (1985) and Trowbridge et al (1985).…”
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