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Dryad

The effect of nutrient-enrichment and sedimentation on belowground productivity and decomposition in marshes of Barataria Bay, Louisiana

Cite this dataset

Quirk, Tracy; Groseclose, Gina (2022). The effect of nutrient-enrichment and sedimentation on belowground productivity and decomposition in marshes of Barataria Bay, Louisiana [Dataset]. Dryad. https://doi.org/10.5061/dryad.w6m905qsp

Abstract

To test the hypotheses that nutrient enrichment and sediment deposition interact to influence vegetation structure, belowground plant productivity and decomposition, a field experiment was implemented in three marshes in Barataria Bay, LA (healthy oligohaline [OL], brackish deteriorating [DT] and intermediate created [CR]) across experimental plots receiving one of six treatments: control, low nutrients (LN; 100 g N m-2 yr-1 and 11g P m-2 yr-1), high nutrients (HN; 1000 g m-2 yr-1 and 50 g P m-2 yr-1), sediment addition (47 kg m-2 [5 cm elevation increase]), and their combination (n = 5). Datasets here include (1) root ingrowth rates; and (2) belowground decomposition rates; (3) vegetation structure; and (4) porewater nutrient concentrations. 

Funding

Water Institute of the Gulf