Soil physical and chemical properties, Megapit (DP1.00096.001)

The Soil physical and chemical properties, Megapit data product is available at each terrestrial site. The soil pit location was chosen to be representative of the sensor-based Soil Plots based on soil type, vegetation and topography, as well as being accessible by a backhoe and outside the main measurement zone of other sensors. The soil pit is usually within a few hundred meters of the sensor-based Soil Plots and NEON tower. Soil samples were collected by soil horizon up to 200 cm at non-permafrost sites (up to 300 cm at Alaskan sites). Laboratory analyses were conducted at the Kellogg Soil Survey Laboratory in Lincoln, Nebraska following the standard operating procedures outlined in the Soil Survey Laboratory Methods Manual, Report No. 42, Version 5, 2014. Instrumentation: