Tropical agricultural soil carbon dynamics and related physicochemical properties

Soil pits were dug and sampled by horizon using National Resource Conservation Service (NRCS) methods at 20 locations chosen to represent the heterogeneity of soils present. The sampled pits were within a 36,000 acre plantation that produced sugarcane for more than a century on the island of Maui in the State of Hawaii. To investigate the relationship between physicochemical soil properties and soil organic carbon stocks and dynamics in disturbed tropical agricultural landscapes we analyzed bulk soil organic carbon, incubated soils for ninety days, and measured many physicochemical properties of interest. This dataset includes the physicochemical properties measured by soil horizon.

本研究选取可表征研究区土壤异质性的20个采样点，采用美国自然资源保护服务（National Resource Conservation Service, NRCS）的标准方法，按土壤发生层开挖土坑并分层采集样品。所有采样土坑均位于夏威夷州毛伊岛一片拥有超百年甘蔗种植历史、占地面积达3.6万英亩的种植园内。为探究受干扰热带农业景观中土壤理化特性与土壤有机碳储量及动态变化的关联，本研究分析了全土有机碳（bulk soil organic carbon），对土壤样品开展了为期90天的培养实验，并测定了多项目标理化指标。本数据集涵盖了按土壤发生层测定的各项理化性质数据。