Competitive interaction with keystone taxa induced negative priming under biochar amendments.

ABSTRACT:

Background

Biochar amendments have been widely proposed as a conventional and efficient strategy to promote soil organic carbon (SOC) sequestration via negative priming. Unfortunately, the extent and biological mechanisms responsible for biochar-induced negative priming are still not fully understood. Despite traditional explanations focused on the environmental filtering mechanisms of biochar amendments on microbial biomass and community composition underlying the priming effect on SOC dynamics, whether and how a biochar-induced competitive interaction with keystone taxa determines SOC mineralization in natural ecosystems has been minimally explored.

Results

Here, we paid particular attention to the relationships between the diversity and network structure of soil bacterial

SUBMITTER: Chen L 

PROVIDER: S-EPMC6526607 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature