Određivanje hidrauličkih parametara tla temeljem baze podataka pedotransfernih funkcija

master's thesis

• Title (english): Determination od hydraulic soil parameters based on pedotransfer functions database
• Author: Paula Krsnik
• Mentor: Vilim Filipović (mentor)
• Committee member: Vilim Filipović (predsjednik povjerenstva)
• Committee member: Igor Bogunović (član povjerenstva)
• Committee member: Stjepan Husnjak (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Soil Amelioration); Zagreb
• Defense date and country: 2021-09-01, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Određivanje hidrauličkih parametara često je vrlo zahtjevno, dugotrajno i vrlo skupo, pa se sve više prilazi procjeni navedenih parametara primjenom pedotransfernih funkcija. Pedotransferne funkcije (PTF) koriste se kao alternativni alat za predviđanje fizikalnih i kemijskih svojstava tla iz drugih dostupnijih analiziranih svojstava. Vrlo je važno da se do hidrauličkih karakteristika tla dođe brzo i efikasno s obzirom da su one nužne u različitim primjenama. Iako postoji veliki broj različitih PTF metoda, sve one rade na istom principu pokušavajući odrediti svojstva tla, kao što je hidraulička vodljivost s obzirom na samo nekoliko izmjerenih svojstava tla kao što su veličina čestica, tekstura i struktura tla, gustoća tla. Razvojem tehnologije, razvijaju se mnogobrojni numerički programi i modeli koji mogu rješavati probleme toka vode i transporta raznih čestica, odnosno rade na principu PTF-ja, a najviše korišteni su HYDRUS (Rosetta) i SOILPAR.
Podaci o tlu na terenu prikupljeni su na 35 lokacija diljem Republike Hrvatske, te se koristi baza podataka o svim osnovnim značajkama na različitim tipovima tala. Istraživanje je provedeno na sedam tipova tala gdje su zabilježene značajke kao matični supstrat, tip tla, sadržaj pijeska, praha i gline, način korištenja i dr. Uz pomoć HYDRUS (Rosetta) programa izračunate su hidrauličke značajke tla iz osnovnih parametara tla kako bi se dobile retencijske krivulje tla.

Abstract (english)

Determining hydraulic parameters is often very demanding, time-consuming and very expensive, so the assessment of these parameters with pedotransfer functions is increasingly being approached. Pedotransfer functions (PTF) are used as an alternative tool to predict the physical and chemical properties of soil from other more available analyzed properties. It is very important to achieve the hydraulic characteristics of the soil quickly and efficiently since they are necessary in various applications. Although there are a large number of different PTF methods, they all work on the same principle trying to determine soil properties, such as hydraulic conductivity given only a few measured soil properties such as particle size, soil texture and structure, density. With the development of technology, numerous numerical programs and models are being developed that can solve the problems of water flow and transport of various particles. They can work on the principle of PTF, and the most used are HYDRUS (Rosetta) and SOILPAR.
Soil field data were collected at 35 locations throughout the Republic of Croatia, and a database of all basic characteristics on different soil types is used. The research was conducted on seven soil types and recorded features such as parent material, soil type, sand, silt and clay content, method of use, etc. Using the HYDRUS (Rosetta) program, the hydraulic characteristics of the soil were calculated from the basic soil parameters to obtain soil water retention curves.

• Keywords: pedotransferne funkcije; hidraulički parametri tla; numeričko modeliranje; baza podataka; tok vode
• Keywords (english): pedotransfer functions; soil hydraulic parameters; numerical modelling; database; water flow
• Language: croatian
• URN:NBN: urn:nbn:hr:204:221329
• Study programme: Title: Agricultural Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/ magistra inženjer/inženjerka poljoprivredne tehnike (magistar/ magistra inženjer/inženjerka poljoprivredne tehnike)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2021-10-19 06:34:26