Wieder WR, Pierson D, Earl S, et al. SoDaH: the SOils DAta Harmonization database, an open-source synthesis of soil data from research networks, version 1.0. Earth System Science Data. 2021;13(5):1843 - 1854. doi:10.5194/essd-13-1843-2021.

Zinnert JC, Nippert JB, Rudgers JA, et al. State changes: insights from the U.S. Long Term Ecological Research Network. Ecosphere. 2021;12(5):e03433. doi:10.1002/ecs2.v12.510.1002/ecs2.3433.