Analysis of carbon dioxide emissions using soil cores from the Mt. Makiling dumpsite

Date

10-2005

Degree

Bachelor of Science in Agricultural Chemistry

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Josefina L. Solivas

Abstract

PANGILINAN, LOVE LIBRES, College of Agriculture-College of Arts and Sciences, University of the Philippines Los Banos, October 2005. Analysis of carbon Dioxide Emissions Using Soil Cores from the Mt. Makiling Dumpsite.

Adviser: Prof. Josefina L. Solivas

The soil core samples taken from a dumpsite in the Makiling Forest Reserve in Los Banos, Laguna were collected using a polyvinyl chloride core samplers (PVCs.) and were sealed gas-tight. The carbon dioxide gas emitted from the dumpsite soil cores were collected from the headspace of the soil core samplers and were analyzed using the Shimadzu GC-8A equipped with a thermal conductivity detector (TCD) The carbon dioxide gas emission from the dumpsite soil cores was compared with that collected from the cultivated (agricultural) soil and forest soil cores.

The average daily carbon dioxide emission from the dumpsite soil core w. measured at 0.307 g/Ha per day, which was relatively lower compared with the emissions from cultivated soil cores (0.502 e./Ha per day) and forest soil cores (0.451 a/Ha per day). On the basis of the calculated daily carbon dioxide emissions. the dumpsite from Mt. Makiling contributes about 111.9 g/Ha per year of carbon dioxide. This was significantly lower compared with the cultivated soil (183 g/Ha per year) and forest soil (164 g/Ha per year) of carbon dioxide.

The soil samples were also subjected to physico-chemical analysis to determine the relationship of the physico-chemical parameters with the carbon dioxide emissions of different soils. Some parameters such as soil texture, bulk density, pH, organic carbon and organic matter content were found to have a positive relationship with the carbon dioxide emissions from different soils samples.Other parameters such as temperature. moisture content, soil total-N, soil available phosphorus, exchange acidity. CEC, and iron content were not found to have a direct effect on carbon dioxide emissions from the different soil samples.

The statistical analysis using ANOVA showed that all the carbon dioxide emissions obtained per day from different soils were equal at 5% level of significance. The analysis based on the Pairwise Mean Comparison using Duncan's Multiple Range Test (DMRT) also showed that the means of the carbon dioxide emissions per day were not significantly different from each other.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 2005 A13 P36

Document Type

Thesis

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