Fine root nutrient concentration in fertilised plots in the Central Amazon, 2018

The data consists of carbon, micro and macro nutrient concentrations in fine roots (<2mm diameter) in old growth forests in Central Amazon. Fine roots younger than three months were sampled using the ingrowth core technique in a large-scale nutrient fertilisation experiment. Carbon and nutrient concentrations refer to year one of fertilisation, bulking samples from November 2017 to August 2018. Concentrations are given as a mean of the community per plot in year 1, where five points inside each plot were sampled in the 0-10 cm and 10-30 cm soil layers. The dataset depicts the concentrations of iron, zinc, manganese, calcium, magnesium, potassium, phosphorus, nitrogen and carbon in fine roots in two different soil depths. Samples were collected at the AFEX project area in Manaus, Brazil at the Biological Dynamics of Forest Fragments Project (BDFFP/ INPA). The study was funded by NERC, BDFFP (logistical support) and Brazilian government (student scholarship).

该数据集包含了中亚马逊地区原始森林中细根（直径小于2毫米）的碳、微量元素及宏量营养素浓度。采用生长锥技术对三个月龄以下的细根进行了采样，采样地点位于一项大规模的养分施肥实验中。碳及营养素浓度数据对应施肥第一年，采集时间为2017年11月至2018年8月。浓度值以每块样地一年内社区的平均值表示，每个样地内部选取五个点，分别在0-10厘米和10-30厘米的土壤层进行采样。数据集展示了在两种不同土壤深度下细根中铁、锌、锰、钙、镁、钾、磷、氮和碳的浓度。样品收集于巴西马瑙斯的AFEX项目区域，位于生物碎片森林动态项目（BDFFP/INPA）。该研究得到了NERC、BDFFP（后勤支持）以及巴西政府（学生奖学金）的资助。