Issue |
E3S Web Conf.
Volume 623, 2025
IV International Conference on Ensuring Sustainable Development: Ecology, Earth Science, Energy and Agriculture (AEES2024)
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Article Number | 01031 | |
Number of page(s) | 10 | |
Section | Ecology, Biodiversity and Ways of its Conservation | |
DOI | https://doi.org/10.1051/e3sconf/202562301031 | |
Published online | 08 April 2025 |
The impact of soil tillage on CO2 emission: Results of a comparative study
Kazan Federal University, Kazan, 420008, Russia
* Corresponding author: akhtjamovaalina07@gmail.com
This study assessed the effect of soil tillage (loosening) on CO2 emissions due to soil microbial respiration in a small-plot experiment with green manure planting. During the 2024 growing season, soil and air temperature and humidity, CO2 emissions were assessed using the "chamber method" before and after soil loosening. It was found that the soil temperature at a depth of 5 cm and 10 cm, as well as soil moisture and air temperature had a similar trend. The respiratory activity increased by the middle of the vegetation experiment and was maximum (0.072 and 0.102 g*C m-2 h-1 for the soil before and after loosening) at high soil temperature (25°C) and air temperature (26.2°C), as well as high soil moisture (13.4%) and air humidity (54.5%). It then decreased by the end of the experiment by 99.5% and 76.4%, respectively. It was shown that tillage leads to an increase in CO2 emissions by 1.0 to 78.9 times, with the maximum increase observed at the beginning and middle of the growing season. Since both temperature and moisture determine the activity of the soil microbial community, a linear correlation between CO2 emissions and soil temperature, or between CO2 emissions and moisture, was not established.
© The Authors, published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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