Pacific Northwest Research Station

Title: Soil and air temperature and biomass after residue treatment.

Author: Fowler, W.B.; Helvey, J.D.

Date: 1981

Source: Res. Note PNW-RN-383. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 6 p

Station ID: RN-PNW-383

Description: Air temperature at 0.5 m and soil temperature at 0.01 m were measured during May and early June after forest harvest on four residue treatment sites and a control. Broadcast burning or burning in piles increased daily accumulation of heat in air while scattered chips and scarified and cleared treatments were equal to the control (broadcast, untreated slash). During mid-afternoon, the pile-and-burn treatment was warmest; near sunrise, the broadcast burn was consistently warmer. Soil temperature within the chipped plot was colder than in the other plots. For seeded and unseeded plots, the production of aboveground biomass showed the progression: burn pile < scarified < chipped < broadcast slash < broadcast burn.

Keywords: Residue treatments, temperature (air), temperature (soil), biomass, Oregon (Blue Mountains)

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Citation

Fowler, W.B.; Helvey, J.D.  1981.  Soil and air temperature and biomass after residue treatment..   Res. Note PNW-RN-383. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 6 p