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咸酸田是广东滨海地带主要土类之一,分布于吳川、合浦、东兴、欽县、东莞、中山、番禺、澄海、汕头等地。单是湛江专区面积就有30万亩。咸酸田形成的原因,主要由于其底层埋积有大量含硫量多的紅树林残体。且受咸潮的淹浸,筑围防潮后由于淡水灌漑不足,田土干旱,硫化物随水沿毛管上升到耕作层,經氧化后成硫酸,田土旣咸又酸故称“咸酸田”。酸硷度2~4.5左右,土中鉄鋁錳等化合物在强酸作用下大量溶解,成
Xianxian Tian is one of the main soil types in the coastal area of Guangdong. It is distributed in Wuchuan, Hepu, Dongxing, Qinxian, Dongguan, Zhongshan, Panyu, Chenghai and Shantou. Zhanjiang area alone has 30 acres. The reason for the formation of salicylic acid field is mainly due to the embedding of a large amount of mangrove debris with a large amount of sulfur in the bottom layer. And by flooding the salt tide, after the construction of moisture-proof fencing due to lack of fresh water irrigation, arid land, sulfide along with the water up to the tillage layer, after oxidation into sulfuric acid, the soil is salty and sour called “acid field ”. Alkalinity of about 2 to 4.5, the soil aluminum 锰 Manganese and other compounds dissolved in a large amount of strong acid into