Some 22 percent of degrading land is in very arid to dry-subhumid areas, while 78 percent of it is in humid regions.

从极为干旱到亚湿润的地区，正在退化的土地的比例大约为22%，而78%地处湿润地区。

The central concept of Inceptisols is that of soils of soills of humid and subhumid regions that have altered horizons that have lost bases or iron and aluminum but retain some weatherable minerals.

始成土的主要特性在于它分布在湿润半湿润地区，发育有丧失盐基或铁铝但保留可风化矿物的土层。