Sentence:  Most <WSD>Organosols</WSD> are wet soils and many have long been known as peats....Some of the less acidic <WSD>Organosols</WSD> in southern Australia have been drained and sown to pastures for dairying or used for intensive vegetable growing. 
Meaning of the word marked with <WSD> tags:  A histosol, a soil comprising chiefly organic material.