Forest type mediates post-fire soil water infiltration reduction in the Dabie Mountains

Description

1. Research hypothesis Low‑intensity surface fire alters soil hydrological function, but the direction and magnitude of change may depend on forest type. We hypothesized that: Fire reduces soil water infiltration rates (initial, steady, and average); Forest type modulates the infiltration response to fire; Fire‑induced changes in soil water repellency, porosity, bulk density, litter mass, and root traits are the key mechanisms driving infiltration decline. 2. Data summary Forest types: BF – Broadleaved forest (Quercus acutissima dominant) CF – Coniferous forest (Pinus massoniana dominant) MF – Mixed coniferous‑broadleaved forest 3. Variables measured (column headers) Foresttype BF / CF / MF Forest type Treat Unburned / Burned Fire treatment IIR mm·h⁻¹ Initial infiltration rate SIR mm·h⁻¹ Steady infiltration rate AIR mm·h⁻¹ Average infiltration rate SWC % Gravimetric soil water content BD g·cm⁻³ Soil bulk density TP % Total porosity CP % Capillary porosity WDPT s Water drop penetration time Clay (%) % Clay content Silt (%) % Silt content Sand (%) % Sand content Littermass g·m⁻² Surface litter mass Root biomass g·m⁻² Root biomass Root length Root length RS Root surface area

Institutions

• Henan University

  Henan, Kaifeng

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