Response of methane emissions to water levels in simulated constructed wetlands

• Autorzy: Li Yanran , Xu Qin , Ji Shuping , Liu Jian

Identyfikatory

DOI

10.37190/epe220301

• Języki publikacji: EN

Abstrakty

EN

Wetland is an important natural source of methane (CH₄) generated under the actions of methanogens in the anaerobic environment. A greenhouse experiment was conducted to quantify the response of methane emissions to water levels by simulating three water levels (10, 20, and 40 cm) in constructed wetlands and the methane was determined by the static chamber-gas chromatograph technique. Pearson correlation analysis showed that the emissions of CH₄ were positively correlated with water temperature and air temperature while they were negatively correlated with air humidity. The water levels simulation experiment showed that the emission of CH₄ was the highest when the water level was 20 cm and the CH₄ concentrations of the water-air interface had different patterns at various water levels in the daytime. In conclusion, water level and temperature should be considered when accounting for greenhouse gas emissions in constructed wetlands as they both have important influences on CH₄ emission.

Słowa kluczowe

EN

methane; Pearson correlation; wetland; temperature water; air temperature

PL

metan; korelacja Pearsona; teren podmokły; temperatura wody; temperatura powietrza

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Environment Protection Engineering
• Rocznik: 2022
• Tom: Vol. 48, nr 3
• Strony: 5--12
• Opis fizyczny: Bibliogr. 26 poz., rys., tab.

Twórcy

autor

Li Yanran

• Environment Research Institute, Shandong University, Qingdao 266237, China

• https://orcid.org/0000-0003-2709-4388

autor

Xu Qin

• Research Institute for Environmental Innovation (Suzhou), Tsinghua, Suzhou 215163, China

• https://orcid.org/0000-0001-8907-0889

autor

Ji Shuping

• Environment Research Institute, Shandong University, Qingdao 266237, China

• https://orcid.org/0000-0002-5070-8643

autor

Liu Jian

• Environment Research Institute, Shandong University, Qingdao 266237, China

• https://orcid.org/0000-0003-1920-2641

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