The free iron oxide content in clay in every mountain is higher in the mountain yellow soil than that in the mountain latored soil and mountainredsoil.
粘粒的游离氧化铁含量，每个山体均是山地黄壤高于山地红壤和山地赤红壤。
2
Due to the effect of vertical zonality, the sensitivity of the mountainredsoil is the highest, that of the mountain yellow brown soil the next, and that of the mountain yellow earth the least.
由于垂直地域分异作用，山地红壤的敏感性较大，其次为山地黄棕壤，山地黄壤为不敏感土壤；
3
The zonal soils of Hainan province comprises with laterite, savanna soil, mountain lateritic red earth, mountain yellow earth, etc.