Clay-mineralogical and productional characteristics of soils of the northern part of Mala Fatra National Park
1997
Bublinec, E. | Mihalik, A. (Technicka Univ., Zvolen (Slovak Republic). Lesnicka Fakulta)
Three localities were selected for the investigation of soils and their ecological, productional and clay-mineralogical properties in the northern part of the Mala Fatra National Park (Slovak Republic). The soil profile Stefanova was classified as rendzinic cambisol. The soil type is also the most represented. The further soil profile Varin 1 belongs to organosolic podsols and the last profile Varin 2 belongs to typical acid cambisols. The analyses have shown that the available phosphorus content was the highest in the organosolic podsol, especially in the illuvial horizons (over 50 mg P/kg), lower content was found in the typical acid cambisol (4.5 to 34 mg P/kg) and the lowest values were found in rendzinic cambisol (below 2.6 mg P/kg). Very good supplies of the available potassium were found in the typical cambisol (15 to 125 mg K/kg) and in the profile of podsol (12 to 132 mg K/kg) and in the profile of podsol (12 to 132 mg/kg), the lowest ones were again identified in the rendzinic cambisol (21 to 78 mg K/kg). An abrupt change of the texture and representation of clay minerals, and a strong increase of pH from acid to alkaline on carbonate substrates indicate that the boundaries of the B horizon as well as the boundary of reduced chalk content are of geological origin (boundary between the main and the basal layers). There is thus a close relationship between the generic and productive properties of soils and their parent-rock substrate
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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