Shifts in soil microbial diversity and greenhouse gas emission dynamics.

Soil microbial diversity shifts during land reclamation significantly influence greenhouse gas emissions, with bacteria, fungi, and protists responding differently over 15 years.

• Why it matters: Understanding how human-driven land formation alters microbial communities and greenhouse gases is crucial for developing sustainable reclamation practices and mitigating climate change impacts.
• What they did: Researchers collected soil samples at multiple intervals over 15 years from reclaimed land, analyzing microbial communities via high-throughput sequencing and modeling their effects on greenhouse gases.
• The result: Bacterial diversity increased initially and stabilized, while protistan diversity peaked after 7-9 years; bacterial and protistan diversities directly affected CO2, methane, and N2O emissions, guiding strategies to reduce greenhouse gases.