In Vietnam, weathering crust has been intensively studied from different aspects. However, this paper is the first attempt to study on changing plantation. The following methods are used: analysis of weathering factors in natural balance; geochemical method for studying the major and trace elements; comparing weathering crust with the standard one on which a known assemblage of plants is well developed. The results reveal that: the feralite weathering crust is suitable for litchi, .
