The high acidity of this red soil means it's not too good for agriculture, and because the geography of the area makes it difficult to irrigate, the farmers there can only really grow drought-resistant crops like sweet potato.
由於紅土為酸性土壤，貧瘠不適合農作，加上大肚山屬於台地，缺乏水源，只能種些耐旱作物如甘薯等營生。