Fine root turnover in forest ecosystems in relation to quantity and form of nitrogen availability: a comparison of two methods

John D. Aber; Jerry M. Melillo; Knute J. Nadelhoffer; Charles A. McClaugherty; John Pastor

doi:10.1007/BF00378292

Fine root turnover in forest ecosystems in relation to quantity and form of nitrogen availability: a comparison of two methods

John D. Aber, Jerry M. Melillo, Knute J. Nadelhoffer, Charles A. McClaugherty, John Pastor

Biology (Duluth)

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Abstract

Two methods of estimating fine root production and turnover are compared for 13 forest ecosystems exhibiting a wide range in form (NH₄⁺ vs. NO₃^-) and quantity of available nitrogen. The two methods are by comparison of seasonal maxima and minima in biomess and by nitrogen budgeting. Both methods give similar results for stands with low rates of nitrification. The budgeting method predicts higher fine root turnover and productivity than the max-min method for systems with significant rates of nitrification.

Original language	English (US)
Pages (from-to)	317-321
Number of pages	5
Journal	Oecologia
Volume	66
Issue number	3
DOIs	https://doi.org/10.1007/BF00378292
State	Published - Jun 1 1985

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abstract = "Two methods of estimating fine root production and turnover are compared for 13 forest ecosystems exhibiting a wide range in form (NH4+ vs. NO3-) and quantity of available nitrogen. The two methods are by comparison of seasonal maxima and minima in biomess and by nitrogen budgeting. Both methods give similar results for stands with low rates of nitrification. The budgeting method predicts higher fine root turnover and productivity than the max-min method for systems with significant rates of nitrification.",

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AU - McClaugherty, Charles A.

AU - Pastor, John

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AB - Two methods of estimating fine root production and turnover are compared for 13 forest ecosystems exhibiting a wide range in form (NH4+ vs. NO3-) and quantity of available nitrogen. The two methods are by comparison of seasonal maxima and minima in biomess and by nitrogen budgeting. Both methods give similar results for stands with low rates of nitrification. The budgeting method predicts higher fine root turnover and productivity than the max-min method for systems with significant rates of nitrification.

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Fine root turnover in forest ecosystems in relation to quantity and form of nitrogen availability: a comparison of two methods

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