Work

Exploring long-term effects of biochar on mitigating methane emissions from paddy soil: a review

Year: 2021

Type: article

Abstract: Biochar has been reported to mitigate short-term methane (CH 4 ) emissions from paddy soil. Currently, CH 4 mitigation by biochar has primarily focused on the abundance and variations of methanogens and methanotrophs, and changes in their activities during methane production and consumption. However, long-term effects of biochar on methane mitigation from paddy soil remain controversial. This review overviewed the existing mechanisms for CH 4 mitigation as a result of biochar application. In addition, the two existing opinions on the long-term CH 4 mitigation effect upon biochar application were highlighted. Combining the already explored mechanisms of fresh biochar on CH 4 mitigation from paddy soil and a novel discovery, the potential mechanisms of biochar on long-term methane emission response were proposed. This review also revealed the uncertain responses of biochar on long-term CH 4 mitigation. Therefore, to achieve carbon neutral goal, it is important to further explore the mechanisms of long-term CH 4 mitigation under biochar application.

Source: Biochar

DOI: 10.1007/s42773-021-00096-0

Authors: Qiong Nan, Liqing Xin, Yong Qin, Muhammad Waqas, Weixiang Wu

Institutions: Zhejiang University, Kohat University of Science and Technology

Language: English

Topic: Soil Carbon and Nitrogen Dynamics

Subfield: Soil Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDGs: Climate action, Life on land, Zero hunger

Open Access status: hybrid

Estimated APC paid: $2,780