Przydatność gleb porolnych przeznaczonych pod powiekszenie kolekcji Ogrodu Dendrologicznego w Przelewicach. Część I. Cechy morfologiczne i niektóre właściwosci fizyczne gleb

Abstract

The studies were conducted on the former arable land, intensively used, designated for extending the collection of Dendrological Garden in Przelewice. This area is characterised by a low wavy relief with gentle slopes of ca 3%, on average. Study results showed great variations, especially vertical, in granulometric composition and a considerable diversity of soil types, which had been greatly affected by water erosion. The investigated area was found to be dominated by leached black earth, grey-brown podsolic soil and deluvial soils. Considerably smaller areas were covered with rusty soils, grey-brown soils and arenosols. Irrespective of the soil type classification, these soils are characterised by a substantial humus horizon, mostly sandy clay or loamy sand containing from 4 to 6% clay fraction (<0.002 mm). Reaction is predominantly slightly acid to alkaline, humus content from 10.0 to 30.0 (mean 17.3) g · kg–1, bulk density from 1.22 to 1.59 (mean 1.47) Mg · m–3 and total porosity from 38.8 to 52.2 (mean 43.1) %. Among the determined types of soils, the most beneficial morphological characteristics and properties were detected in leached black earths.