Modeliranje toka vode i vodnog režima tla na erozijom zahvaćenim brdskim područjima

master's thesis

• Title (english): Water flow and soil water regime modeling on eroded hillslope
• Author: Alen Novosel
• Mentor: Vilim Filipović (mentor)
• Committee member: Vilim Filipović (predsjednik povjerenstva)
• Committee member: Ivan Mustać (član povjerenstva)
• Committee member: Ivan Šimunić (član povjerenstva)
• Committee member: Lana Filipović (član povjerenstva)
• Granter: University of Zagreb; Faculty of Agriculture; (Soil Amelioration); Zagreb
• Defense date and country: 2019-09-27, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Agronomy

Abstract

Erozija tla ima značajan utjecaj na tok vode i vodni režim tla, a samim time i količinu vode i njenu kvalitetu. Mnogi se vinogradi nalaze na brdskim položajima zbog povoljne ekspozicije, klimatskih uvjeta te pedoloških karakteristika. Terenskim opažanjima (procjedni lizimetri, senzori) i laboratorijskim analizama (HYPROP) eksperimentalno su određeni hidraulički parametri tla koji predstavljaju prvi korak u određivanju toka vode i vodnog režima. Opisivanje i predviđanje specifičnih procesa u nesaturiranoj i saturiranoj zoni tla vrši se modelima toka vode i pronosa tvari (HYDRUS), a sve u svrhu zaštite od onečišćenja tla i voda odnosno poboljšanja kvalitete poljoprivredne proizvodnje. Cilj ovog rada je pomoću terenskih istraživanja i senzorne tehnologije kalibrirati i validirati numerički model toka vode i vodnog režima istraživanog područja. Radom su potvrđene pretpostavke o varijabilnosti hidrauličkih karakteristika i toka vode ovisno o položaju u vinogradu, sa erozijom kao glavnim čimbenikom prostorne heterogenosti tla. Utvrđena heterogenost hidrauličkih parametara tla na samoj padini koji su pod utjecajem erozije sugerira lokaliziranu primjenu agrotehničkih mjera (npr. navodnjavanja).

Abstract (english)

Soil erosion has a significant impact on water flow and water regime, and therefore the quantity and quality of water. Many vineyards are located at hillslope locations due to favorable exposure, climatic conditions and pedological characteristics. Field observations (lysimeters, soil sensors) and laboratory analyses (HYPROP) was used to experimentally determine hydraulic parameters of the soil, which represents the first step in determining the water flow and soil water regime. The description and prediction of specific processes in the non-saturated and saturated soil zone can be performed using water flow and transport numerical models (HYDRUS). The aim of using models is to understand water and solute behavior in soils with the purpose of protection against soil and water pollution, and the enhancement of the agricultural production. The aim of this work was to calibrate and validate numerical model of water flow and water regime of the study area using field research and sensor technology. The paper confirms the assumptions about the variability of hydraulic characteristics and water flow depending on the location in the vineyard, with erosion as a major factor in soil spatial heterogeneity. The heterogeneity of soil hydraulic parameters on the hillslope affected by erosion suggests localized application of agrotechnical measures (e.g., irrigation).

• Keywords: hidraulički parametri tla; tok vode; numeričke simulacije; erozija tla; HYDRUS
• Keywords (english): soil hydraulic parameters; water flow; numerical simulations; soil erosion; HYDRUS
• Language: croatian
• URN:NBN: urn:nbn:hr:204:448676
• 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: Access restricted to students and staff of home institution
• Created on: 2019-11-12 10:31:09