Greenhouse gas (GHG) emission in the permafrost regions of western Mongolia: case area in the Munkhkhairkhan mountain

DOI

10.2991/978-94-6463-278-1_8How to use a DOI?

Keywords

Greenhouse gas; emission factor; organic carbon in the soil; permafrost

Abstract

Permafrost thaws accelerate the rates of carbon released by the soil into the atmosphere and cause significant positive climate-change feedback. We selected Munkhkhairkhan mountain as the study area. The main purpose of this study is to estimate GHG emissions and to calculate the emission factor (EF) at the study sites in Doloon Nuur and Shuurkhai in Munkhkhairkhan. This study is conducted in summer 2022 and carbon dioxide (CO₂) emissions were measured using the EGM-4 instrument. Soil samples were collected at depths of 0-5 cm, 5-10 cm, and 10-15 cm at the sites. We have determined the soil organic carbon content (SOC) at peat and nonpeat in both sites. According to the results, CO₂ fluxes ranged between 0.1 and 18.5 µmol/m-² s-¹ in the Doloon Nuur and Shuurkhai. Furthermore, EF at all sites on Munkhkhairkhan mountain (±standard error) was 112.3 g [CO₂] m^-2 yr^-1 (±18.2), 5.9 g [CH₄] m^-2 yr^-1 (±1.0). SOC content was 10.5% in 0-5 cm, 14.2% in 5-10 cm, and 11.4% in 10-15 cm at the study sites in Shuurkhai. The SOC content at the sites in Doloon Nuur ranges from 3.1% in 0-5 cm, 2.3% in 10-15 cm and 1.7% in 10-15 cm. This study is conducted with a year measurement; therefore, further research should extend the time period and can be used as a baseline study.

Copyright

© 2023 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Batzorig Batbold
AU  - Saruulzaya Adiya
AU  - Tsogt-Erdene Gansukh
PY  - 2023
DA  - 2023/10/29
TI  - Greenhouse gas (GHG) emission in the permafrost regions of western Mongolia: case area in the Munkhkhairkhan mountain
BT  - Proceedings of the Fourth International Conference on Environmental Science and Technology (EST 2023)
PB  - Atlantis Press
SP  - 67
EP  - 75
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-278-1_8
DO  - 10.2991/978-94-6463-278-1_8
ID  - Batbold2023
ER  -