Nitrogen addition increases aboveground silicon and phytolith concentrations in understory plants of a tropical forest

Xiao Fei Lu
Purpose: Silicon (Si) is a beneficial element for plants and plays important roles in the biogeochemical cycle of mineral elements. Yet, few studies have focused on the impact of nitrogen (N) deposition on plant Si uptake and the Si biocycle. Methods: We designed an experiment dealing with canopy and understory N addition in a tropical forest to comprehensively assess the response of Si cycle to N addition focusing on understory plants and topsoil. After six...
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