Soil physical and chemical properties, stoichiometry, enzyme activity, microbial diversity, and absolute microbial abundance

Description

Data on the effects of planned burning and smoke on soil physicochemical properties, stoichiometry, enzyme activity, microbial diversity, and absolute microbial abundance

Steps to reproduce

Prescribed burning is a key “fighting fire with fire” silvicultural measure that utilizes low-intensity surface fires to decompose thermally forest surface fuels, thereby reducing fuel load. However, the substantial smoke particles and small amounts of ash emitted during prescribed burning may affect the carbon (C), nitrogen (N), and phosphorus (P) stoichiometry, as well as microbial activity and functional structure of forest soils. There are no studies that decouple the instantaneous effects of thermal stress and smoke deposition on nutrient contents and biological soil properties. Therefore, this study conducted three prescribed burning experiments in Pinus sylvestris var.mongolica forests, a dominant tree species in northern China by setting up fire plots and adjacent smoke plots. A systematic analysis was performed on soil physicochemical properties; soil C, N, and P contents; soil enzyme activities; microbial community structure, function, and metabolic products to examine the effects of thermal stress (fire) and smoke deposition during prescribed burning.

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Funders

• National Natural Science Foundation of China

  Grant ID: 32371881
• Fundamental Research Funds for the Central Universities

  Grant ID: 2572023CT01
• China Postdoctoral Science Foundation

  Grant ID: 2025M771919
• Postdoctoral Foundation of Heilongjiang Province

  Grant ID: LBH-Z24002

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