Gostota tal in zaloge ogljika v gozdnih tleh na trdih karbonatnih podlagah v Sloveniji : diplomsko delo - univerzitetni študij

Krajnc, Bor (author), Grčman, Helena (mentor), Diaci, Jurij (co-mentor)

Pridobivanje podatka o volumenski gostoti tal (?b) je izvedbeno zahteven in časovno potraten postopek. Z razvojem pedotransfernih funkcij (PTF) se lahko ta podatek oceni iz drugih parametrov tal, ki se že nahajajo v bazah podatkov,ali pa se jih veliko lažje in hitreje izmeri. Če se funkcija razvije za tla na določeni matični kamnini, je lahko ta ocena natančnejša. Iz podatkov 15ih vzorčnih ploskev 16 x 16 km bioindikacijske mreže Slovenije, ki so bili pridobljeni leta 2006 v okviru projekta BioSoil, je bila razvita PTF za ocenjevanje ?b mineralnega dela tal na trdih karbonatnih matičnih podlagah v Sloveniji. S podatkom o koncentraciji organskega ogljika je bilo pojasnjenih 89% variabilnosti ?b mineralnega dela tal. Če je bil v model vključen še podatek o kationski izmenjalni kapaciteti, je bilo pojasnjenih skoraj 94% variabilnosti ?b mineralnega dela tal. Volumensko gostoto organskega dela tal smo poizkušali oceniti na podlagi vrste podhorizonta. S tem podatkom je bilo pojasnjenih 42% variabilnosti volumenske gostote organskega dela tal. Preverjeno je bilo, če obstaja korelacija med količino lesne zaloge in zalogo ogljika v tleh. Korelacija na preučevanih ploskvah ni bila dokazana.

• Language: Slovenian
• Keywords: pedologija, tla, gostota tal, PTF, pedotransferna funkcija, pedotransferni model, apnenec, dolomit, Slovenija
• Work type: Undergraduate thesis
• Typology: 2.11 - Undergraduate Thesis
• Organization: BF - Biotechnical Faculty
• Place of publishing: Ljubljana
• Publisher: [B. Krajnc]
• Year: 2011
• Number of pages: IX, 45 f.
• PID: 20.500.12556/RUL-17773
• UDC: 630*114(043.2)=163.6
• COBISS.SI-ID: 3248038
• Publication date in RUL: 11.07.2014

Secondary language

• Language: English

Abstract

Measuring soil bulk density (?b) is a complex and time consuming activity. With the development of pedotransfer functions (PTFs) this information can be assessed from other soil parameters which are much easier and faster to measure or are already present in databases. If the function is developed for the soil at a particular parent rock, the estimate may be more accurate. In the development of PTFs to estimate the ?b of the mineral part of the soil, specifically the hard carbonate parent rock material in Slovenia the data, which was obtained in 2006 in the framework of the BioSoil project was used. The data was collected from 15 sample plots which are part of the 16 x 16 km bio-indication network of Slovenia. The data on the concentration of organic carbon explained 89% of the variability of ?b in the mineral part of the soil. If the data on cation exchange capacity was included, the model explainedalmost 94% of the variability of ?b in the mineral part of the soil. A study of the types of sub-horizons was used to estimate the ?b of the organic part of the soil. The data explained 42% of the variability of ?b of the organic part of the soil. The correlation between the growing stock and soil carbon pool was examined. No proof of correlation for the studied plots existed.