Nitrification potential and ammonia-oxidizer abundances in Louisiana salt marshes, May to September 2012

This dataset contains values for nitrification potential, abundances of ammonia-oxidizing bacteria (AOB), ammonia-oxidizing archaea (AOA), and soil properties collected from 13 marshes in Terrebonne Bay (TB), western Barataria Bay (WB), and eastern Barataria Bay (EB), LA. In TB and EB we sampled two oiled marshes and two unoiled marshes, and in WB we sampled three oiled marshes and two unoiled marshes. At each marsh, we collected 5-cm deep soil cores along a 20-m transect from the marsh edge and collecting soil samples every 5 m. Each sample was analyzed for nitrification potential and a suite of physical (soil water content, bulk density) and chemical properties (pH, organic C, total N, molar C:N ratio, total P). Marshes in TB were sampled monthly from May to September 2012, and the WB and EB marshes were sampled in July and September 2012. Samples collected in July 2012 were analyzed for AOA and AOB. This dataset is used in the publication: Marton JM, Roberts BJ, Bernhard AE, Giblin AE. 2015. Spatial and temporal variability of nitrification potential and ammonia-oxidizer abundances in Louisiana salt marshes. Estuaries and Coasts 38:1824-1837. DOI: 10.1007/s12237-015-9943-5

本数据集涵盖采自美国路易斯安那州（LA）特尔博恩湾（Terrebonne Bay, TB）、西巴拉塔里亚湾（western Barataria Bay, WB）及东巴拉塔里亚湾（eastern Barataria Bay, EB）共13处盐沼的硝化潜势（nitrification potential）、氨氧化细菌（ammonia-oxidizing bacteria, AOB）、氨氧化古菌（ammonia-oxidizing archaea, AOA）丰度及土壤性质数据。其中TB与EB区域各布设2处受油污染盐沼与2处未受油污染盐沼，WB区域则布设3处受油污染盐沼与2处未受油污染盐沼。每处盐沼均沿距盐沼边缘20米的样带，以5米间隔采集深度为5厘米的土壤岩芯作为样品。对每份样品开展硝化潜势检测，并分析一系列物理性质（土壤含水量、容重）与化学性质（pH值、有机碳、总氮、碳氮摩尔比、总磷）。TB区域的盐沼于2012年5月至9月按月采样，WB与EB区域的盐沼则于2012年7月与9月采样。2012年7月采集的样品用于AOA与AOB丰度分析。本数据集已应用于以下发表文献：Marton JM, Roberts BJ, Bernhard AE, Giblin AE. 2015. 《路易斯安那州盐沼硝化潜势与氨氧化微生物丰度的时空变异》. 《河口与海岸（Estuaries and Coasts）》38:1824-1837. DOI: 10.1007/s12237-015-9943-5