Short-term response of soil bacterial and fungal communities to fire in rotational shifting cultivation, northern Thailand

• DOI: 10.1016/j.apsoil.2024.105303
• Publication Date: 2024-01-28T04:48:17Z
• Authors: Noppol Arunrat; Chakriya Sansupa; Sukanya Sereenonchai; Ryusuke Hatano

Soil microbial communities are ubiquitous and essential for the functioning of soil system. The use fire is a common practice in rotational shifting cultivation (RSC) to clear land after cutting vegetation cultivation. However, three main questions remain unanswered: (1) What more sensitive between bacteria fungi RSC fields? (2) kinds bacterial fungal taxa resistant (3) Does affect complexity networks To address these questions, surface samples (0–2 cm depth) were collected from sites with 10 years fallow Chiang Mai Province, northern Thailand, at different time points: before burning (BB), 5 min (AB), 1 month (AB-1 M). results revealed that exhibited greater sensitivity compared fungi. After one burning, richness diversity increased significantly recovered rapidly than fungi, likely due rise pH post-fire. Heat-resistant detected following event. Specifically, within community, phylum Firmicutes substantial increase around 95 % (BB = 0.63 %, AB 96.31 %), while genera Bacillus 0.16 38.53 Alicyclobacillus 0.14 17.10 Aneurinibacillus 0.03 10.48 %) showed over tenfold fire. In Ascomycota 31.46 96.47 experienced significant At genus level, Penicillium 4.99 54.14 Aspergillus 3.20 14.50 Hamigera 0.02 10.07 displayed dominant increases response Co-occurrence network analysis tended form complex bacteria. both declined but rebounded month. Our study underscores significance disturbance shaping dynamics fields.