Ultisol (Spanish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Ultisol" in Spanish language version.

refsWebsite

Global rank Spanish rank

26^th place

56^th place

318^th place

153^rd place

fao.org

IUSS Working Group WRB (2015). «World Reference Base for Soil Resources 2014, Update 2015». World Soil Resources Reports 106, FAO, Rome.

jstor.org

Vitousek, P. M., and Sanford Jr., R. L. (1985). Nutrient cycling in moist tropical forest. Annual Review of Ecology and Systematics, 17, 137-167. https://www.jstor.org/stable/2096992