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Preliminary budget of methane emissions from natural wetlands in China

Ding, Weixin / Cai, Zucong / Wang, Dexuan

AbstractNatural wetland excluding lake and floodplain in China at present covers an area of around $94,000 km$ ² and are mainly located in Qinghai-Tibet Highland (∼50%) and northeast China (∼30%), which can be divided into the peatlands $(∼42,000 km$ ²), freshwater marsh $(∼25,000 km$ ²), swamp $(∼2,500 km$ ²), and salt marsh $(∼24,000 km$ ²). The CH4 flux measured in 2001 and 2002 from the peatland in Qinghai-Tibet Highland and the freshwater marsh in Sanjiang Plain ranged from 0.16 to 10.0 and 1.18 to $54.6 mg CH 4 m$ ⁻² h ⁻¹, and averaged 2.96 and $19.6 mg CH 4 m$ ⁻² h ⁻¹, respectively. Based on our in situ measurement and the available data measured in the previous studies, the preliminarily estimated budget of CH4 emissions from natural wetlands in China was $1.48 Tg CH 4$ over the growing season and $1.76 Tg CH 4 yr$ ⁻¹.

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Preliminary budget of methane emissions from natural wetlands in China

Ding, Weixin / Cai, Zucong / Wang, Dexuan

AbstractNatural wetland excluding lake and floodplain in China at present covers an area of around $94,000 km$ ² and are mainly located in Qinghai-Tibet Highland (∼50%) and northeast China (∼30%), which can be divided into the peatlands $(∼42,000 km$ ²), freshwater marsh $(∼25,000 km$ ²), swamp $(∼2,500 km$ ²), and salt marsh $(∼24,000 km$ ²). The CH4 flux measured in 2001 and 2002 from the peatland in Qinghai-Tibet Highland and the freshwater marsh in Sanjiang Plain ranged from 0.16 to 10.0 and 1.18 to $54.6 mg CH 4 m$ ⁻² h ⁻¹, and averaged 2.96 and $19.6 mg CH 4 m$ ⁻² h ⁻¹, respectively. Based on our in situ measurement and the available data measured in the previous studies, the preliminarily estimated budget of CH4 emissions from natural wetlands in China was $1.48 Tg CH 4$ over the growing season and $1.76 Tg CH 4 yr$ ⁻¹.

Preliminary budget of methane emissions from natural wetlands in China

Ding, Weixin / Cai, Zucong / Wang, Dexuan

AbstractNatural wetland excluding lake and floodplain in China at present covers an area of around $94,000 km$ ² and are mainly located in Qinghai-Tibet Highland (∼50%) and northeast China (∼30%), which can be divided into the peatlands $(∼42,000 km$ ²), freshwater marsh $(∼25,000 km$ ²), swamp $(∼2,500 km$ ²), and salt marsh $(∼24,000 km$ ²). The CH4 flux measured in 2001 and 2002 from the peatland in Qinghai-Tibet Highland and the freshwater marsh in Sanjiang Plain ranged from 0.16 to 10.0 and 1.18 to $54.6 mg CH 4 m$ ⁻² h ⁻¹, and averaged 2.96 and $19.6 mg CH 4 m$ ⁻² h ⁻¹, respectively. Based on our in situ measurement and the available data measured in the previous studies, the preliminarily estimated budget of CH4 emissions from natural wetlands in China was $1.48 Tg CH 4$ over the growing season and $1.76 Tg CH 4 yr$ ⁻¹.

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Title:

Preliminary budget of methane emissions from natural wetlands in China

Contributors:

Ding, Weixin (author) / Cai, Zucong (author) / Wang, Dexuan (author)

Published in:

Atmospheric Environment ; 38 ; 751-759

Publication date:

2003-10-06

Size:

9 pages

ISSN:

DOI:

https://doi.org/10.1016/j.atmosenv.2003.10.016

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

Methane emission , Natural wetland , China

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