Utjecaj granulometrijskog sastav tla na vodni potencijal tla

undergraduate thesis

• Title (english): Infleunce of soil particle size distribution on soli water potential
• Author: Lovro Burić
• Mentor: Ivan Perković (mentor)
• Committee member: Ivan Perković (predsjednik povjerenstva)
• Granter: University of Zagreb; Faculty of Forestry and Wood Technology; (Institute of Forest Ecology and Silviculture); Zagreb
• Defense date and country: 2023-09-27, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Forestry

Abstract

Cilj završnog rada na izabranim uzorcima tla (24 uzorka) odrediti granulometrijski sastav tla (u skladu s normom 11277, 1988) i vodno-retencijske značajke tla (u skladu s normom ISO 11274, 1998), te utvrditi utjecaj različitih teksturnih klasa tla na vodni potencijal tla. Na temelju analize granulometrijskig sastava tla (GST) izdvojene su dvije teksturne klase tla (13 uzoraka teksturna oznaka glina i 11 uzoraka teksturne oznake praškasta ilovača). Udjel vode kod retencijskog kapaciteta tla za vodu (pF = 2,52, tlak 0,33 bara), lentokapilarne vlažnosti tla (pF = 3,8 , tlak 6,25 bara) i točke venuća (pF = 4,2 , tlak 15 bara) bile su više za teksturnu ozanku glina u odnosu na teksturnu oznaku praškasta ilovača. Utvrđena je pozitivna koleracija za frakcije gline te negativna za frakcije praha i vodno-retencijskih značajki tla.

Abstract (english)

The aim of the BSc Thesis is to determine on the selected 24 soil samples the granulometric composition of the soil (in accordance with the ISO 11277, 1988 standard), water-retention characteristics of the soil (in accordance with the ISO 11274, 1998 standard), and to determine the influence of different textural soil classes on soil water potential. Based on the analysis of the granulometric composition of the soil, two textural classes of soil were distinguished (13 samples with the textural designation of clay and 11 samples with the textural designation of powdery loam). The share of water in soil water retention capacity (pF = 2.52, pressure 0.33 bar), lento-capillary soil moisture (pF = 3.8 , pressure 6.25 bar) and wilting point (pF = 4.2 , pressure 15 bar) were higher for the textural label of clay compared to the textural label of powdery loam. A positive correlation was found for clay fractions and a negative correlation for dust fractions and water-retention features of the soil.

• Keywords: granulometrijski satav tla; vodni potencijal tla; pF-vrijednost“
• Keywords (english): particle size distribution; water potential; pF-values
• Language: croatian
• URN:NBN: urn:nbn:hr:108:739166
• Study programme: Title: Forestry; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka šumarstva (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka šumarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to students and staff of home institution
• Created on: 2023-10-17 12:14:48