简介:Thedistributionofrareearthelement(REE)formsinsoilsisgiveninthepresentpaperonthebasisofsequentialfractionationanddeterminationof34representativesurfacesoilscollectedfromallpartsofChina.ResultsobtainedshowthattheextractionrateofwatersolubleandexchangeableREEhadtheodd-evenphenomenonandthatoforganicallyboundREEfromLatoLutendedtoreducegraduallywiththeincreaseofatomicnumber.ThestabilityofScandtheactivityandenrichmentofTminsoilsareproposed.Furthermore,thepapermakesapreliminarydiscussiononthedifferencesintheconcentrationdistributionofvariousformsofindividualREEinsomesoils.