Izvorni znanstveni članak
Influence of land use nad inclination on soil properties-example of pseudogley on slope at Donja Zelina
Vedran Rubinić
orcid.org/0000-0003-2187-6952
; Agronomski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Martina Šipek
; Agronomski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Aleksandra Bensa
; Agronomski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Stjepan Hunsjak
; Agronomski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Boris Lazarević
; Agronomski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Sažetak
Properties of agricultural soils are dominantly affected by agro-technical interventions. These interventions lead to deterioration of some soil properties in the long run. Conversion of natural soil into agricultural soil also often leads to enhanced erosion. Erosion may induce changes in soil structure and texture, thus affecting a number of other soil properties. Hence, the aim of this study was to asses the extent to which both land use and 12% slope inclination affect properties of Pseudogley on slope at the Šipek family farm in Donja Zelina. Additional aim was to investigate whether, on ploughland, the properties of the studied Pseudogley changed to the extent that this soil could be systemized as Ploughland semi-terrestrial soil (sesu Husnjak, 2014). Four soil profiles were investigated by auger. Two of these profiles were on the upper part of the slope, and two were on the lower part of the slope (the distance between the two parts
of the slope was 50 m). On both parts of the slope, one profile was on an agricultural land abandoned some 30 years ago (meadow), and the other was on a ploughland. Basic soil properties were determined (soil morphology, particle size distribution, pH and parameters of the adsorption complex, humus content,
physiologically active phosphorus and potassium) contents. It was noted that the
different land uses caused the soils to differ one from the other only to a limited extent (most notably, in soil nutrients contents). It was inferred that, once soil stopped being used as a ploughland, it regained balance with natural soilforming factors (i.e., with environmental conditions) very slowly. Hence, both the soil on the polughland and the soil on the meadow may be systemized as
Ploughland semi-terrestrial soils. Inclination caused the increase of the ecological soil depth along the slope. Namely, due to washout during pedogenesis, on the upper part of the slope, at the depth of 80-110 cm, we observed an older, more clayey and more compacted horizon, compared with the above-lying horizons. Recent flows of material down the slope affected soil properties only slightly. It appears that, in humid climate, on slopes that are up to about 50 m long and up to about 12% inclined, erosion on silt loam soils does not always significantly impact soil properties. However, this should be confirmed by using a higher number of observations (both along the slope and within the slope segments) on slopes with differing lengths. Further, soil erosion should be assessed across various land uses, i.e., across different soil tillage systems.
Ključne riječi
šseudogljey on slope; arable soil; anthropogenic soils; erosiont
Hrčak ID:
152896
URI
Datum izdavanja:
8.2.2016.
Posjeta: 2.207 *