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    Author(s): W. W. Covington; S. S. Sackett
    Date: 1986
    Source: Soil Science Society of America Journal. 50: 452-457
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (42 KB)


    To determine the effects of different burning intervals on soil N status in substands of sapling-, pole-, and sawtimber-sized ponderosa pine (Pinus ponderosa Laws.) we sampled plots burned at 1-, 2-, and 4-yr intervals by three strata at two depths (0-5 and 5-15 cm). Generally, NH4 +; and NO3 - concentrations were higher on plots repeatedly burned than on unburned controls. However, plots not reburned for 4 to 5 yr had concentrations similar to controls. No significant difference in total (organically bound) N was found among treatments. We conclude that frequent periodic burning can be used to enhance N availability in southwestern ponderosa pine sites

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    Covington, W. W.; Sackett, S. S. 1986. Effect of Periodic Burning on Soil Nitrogen Concentrations in Ponderosa Pine. Soil Science Society of America Journal. 50: 452-457


    fire effects, NH4 +, NO3 -, Pinus ponderosa Laws., Arizona, fuel management

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