alexa Foliar and Litter Nutrients, Nutrient Resorption, and Decomposition in Hawaiian Metrosideros polymorpha
Environmental Sciences

Environmental Sciences

Journal of Bioremediation & Biodegradation

Author(s): Peter M Vitousek

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The native tree Metrosideros polymorpha dominates Hawaiian forests across a very wide range of soil fertility, including both sites where forest production is limited by nitrogen (N) and others where it is limited by phosphorus (P). Five long-term fertilization experiments have further broadened the range of nutrient availabilities experienced by Metrosideros. Adding P to P-limited sites increased foliar P concentrations threefold and litter P concentrations up to 10-fold; lignin concentrations decreased, and the decomposability of leaf litter increased from 32%–35% to 36%–46% mass loss in the first year. Adding N to N-limited sites increased leaf and litter N concentrations by only 15%–20%, with little or no effect on the decomposability of tissue.

This article was published in Ecosystems and referenced in Journal of Bioremediation & Biodegradation

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