Carbon dioxide titration method for soil respiration measurements
Martín Rubio, Luis (2017)
Tampereen ammattikorkeakoulu
2017
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-201705239677
https://urn.fi/URN:NBN:fi:amk-201705239677
Tiivistelmä
This thesis was commissioned by Tampere University of Applied Sciences, which was interested in studying and developing a titration measurement method for soil respiration and biodegradability. Some experiments were carried out measuring soil respiration for testing the method and others adding some biodegradable material like polylactic acid compressed material and 100% biodegradable plastic bags to test its biodegradability and the possibility to measure it via titration.
The thesis was done between January and May 2015 and consists of two parts. In the literature research part, a measuring method for soil respiration via titration was found, as well as an interesting theory of soil respiration that can be useful for the development and conditions of the experiments. The other part of the thesis was the experimental work in the laboratory applying the method found in literature for studying soil respiration and biodegradability. This method consists in creating the samples with Oxitop® oxygen experiment and the titration of them.
The results of the experimental part showed that it is possible to measure soil respiration via titration and the experimental method is established according to the standard SFS EN-ISO 16072. It was found that is possible to detect and measure biodegradability of PLA, soil and commercial biodegradable product applying soil respiration titration method. In addition, it seems that CO2 titration is a reliable method when compared to Oxitop® soil respiration by pressure measurement.
The thesis was done between January and May 2015 and consists of two parts. In the literature research part, a measuring method for soil respiration via titration was found, as well as an interesting theory of soil respiration that can be useful for the development and conditions of the experiments. The other part of the thesis was the experimental work in the laboratory applying the method found in literature for studying soil respiration and biodegradability. This method consists in creating the samples with Oxitop® oxygen experiment and the titration of them.
The results of the experimental part showed that it is possible to measure soil respiration via titration and the experimental method is established according to the standard SFS EN-ISO 16072. It was found that is possible to detect and measure biodegradability of PLA, soil and commercial biodegradable product applying soil respiration titration method. In addition, it seems that CO2 titration is a reliable method when compared to Oxitop® soil respiration by pressure measurement.