Ali z manj intenzivno obdelavo tal lahko učinkovito skladiščimo ogljik v tleh?

Lamovec, Tine (author), Mihelič, Rok (mentor)

Ohranitvena obdelava tal je po navadi definirana kot obdelava, pri kateri je minimalno 30 % površine vedno pokrite z rastlinskimi ostanki. Bistvena razlika je tudi, da tal ne orjemo in obračamo. Ker gre pri ohranjevalni obdelavi za manjše število operacij, ki so po navadi tudi manj intenzivne, jo imenujemo tudi reducirana (zmanjšana) obdelava. Pri tej obdelavi uporabljamo specialna orodja in stroje, ki tal ne obračajo ampak samo rahljajo, drobijo ali mešajo. V diplomskem projektu bom predstavil ohranitveno obdelavo tal in učinke le-te na kakovost tal in možnost skladiščenja ogljika v tleh v primerjavi s konvencionalno obdelavo z oranjem. V stroki prihaja do razhajanj in različnih ugotovitev na tem področju, zato bom poskušal to temo predstaviti iz več vidikov, ker menim, da je treba za celovito sliko pretehtati različne dejavnike. Pomembna je možnost skladiščenja ogljika v tleh iz globalnega vidika, saj s porušitvijo ravnotežja v globalnem ciklu ogljika prihaja do negativnih učinkov na podnebje in v tem smislu tla predstavljajo velik potencialen rezervoar ogljika.

• Language: Slovenian
• Keywords: ohranitvena obdelava, sekvestracija ogljika, organska snov v tleh
• Work type: Bachelor thesis/paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: BF - Biotechnical Faculty
• Publisher: [T. Lamovec]
• Year: 2018
• PID: 20.500.12556/RUL-100097
• UDC: 631.51:631.417(043.2)
• COBISS.SI-ID: 8941433
• Publication date in RUL: 07.03.2018

Secondary language

• Language: English
• Title: Is it possible to successfuly sequester carbon in soil when applying conservational tillage?

Abstract

Conservational tillage is defined as tillage at which 30% of soil surface is permanently covered with crop residue. Soil is not ploughed with conventional moldboard plough. Sometimes we call it reduced tillage, because there are less needed operations, which are not so intense. When applying reduced tillage, we use special tools which do not turn or heavily disturb the soil, just loose or crumble it. In this thesis, I will present conservation tillage and its effects on soil quality and its ability to sequester carbon in comparison to conventional tillage. There are many scientific studies on this topic with different results and views, so I will present the topic from a wider perspective because I think its necessary to get the whole picture. Carbon sequestration in soil can be an important factor from global view, because with destabilized global carbon cycle we face negative effects on climate and we know that soils have great potential to sequester carbon.

• Keywords: conservational tillage, carbon sequestration, soil organic matter