Root-soil depth profile in Luquillo Experimental Forest, Puerto Rico, February, 2019

With an objective of associating the distribution of roots in the soil profile with functional attributes related to phosphorus nutrition, 1-m cores were collected from sites in the Luquillo Experimental Forest, Puerto Rico, in February, 2019. The sampled sites were ridge and valley locations at El Verde and Icacos with soils that differ in parent material and phosphorus fertility. Depth profiles of soil physical characteristics (bulk density, moisture content, and particle size distribution), phosphorus content (total phosphorus, organic phosphorus, and resin or available phosphorus), soil and root-associated phosphatase activity, and fine-root traits (biomass, specific root length and area, and phosphorus content) were determined. This dataset was originally published on the NGEE Tropics Archive and is being mirrored on ESS-DIVE for long-term archival

本数据集以关联土壤剖面中根系分布与磷素营养相关功能属性为研究目标，于2019年2月从波多黎各卢奎洛实验森林（Luquillo Experimental Forest）的多个采样点采集了1米土芯。采样点涵盖埃尔韦尔代（El Verde）与伊卡科斯（Icacos）的山脊及山谷区域，供试土壤的母质与磷素肥力存在差异。本研究测定了多项指标的深度剖面特征：土壤物理特性（容重、含水量与粒径分布）、磷素含量（全磷、有机磷、树脂态/有效磷）、土壤及根系关联的磷酸酶活性，以及细根性状（生物量、比根长、比根面积与磷素含量）。本数据集最初发布于NGEE热带档案库（NGEE Tropics Archive），目前已镜像至ESS-DIVE以实现长期存档。