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This article in JEQ

  1. Vol. 15 No. 4, p. 351-356
     
    Received: Aug 19, 1985


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doi:10.2134/jeq1986.00472425001500040007x

Wastewater Renovation in a Slash Pine Plantation Subjected to Prescribed Burning1

  1. Jane T. Red and
  2. Wade L. Nutter

Abstract

Abstract

Two experimental areas were established in an underdrained 16-yr-old slash pine (Pinus elliottii Mor.) plantation land treatment system receiving 2.5 cm/week of secondarily treated domestic wastewater. One of the experimental areas was subjected to a prescribed burn as a forest management practice. A high degree of wastewater renovation was achieved and the prescribed burn had no significant effect on wastewater renovation. Forest floor storage of K, Ca, Mg, and P was significantly increased from pretreatment levels due to wastewater irrigation. Prescribed burning had no effect on forest floor nutrient storage. Soil concentrations of total and available P, Ca, Mg, and K increased significantly in the surface soil horizon due to wastewater irrigation. Additional increases in the surface soil horizon of total P, Ca, Mg, and K concentration occurred due to burning. Wastewater irrigation resulted in significant reductions in soil acidity and total-Kjeldahl N concentration in the surface horizon. Prescribed burning altered species composition and density of the understory. No significant differences in overstory nutrient storage were observed due to treatment.

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