通常淡水水域的土壤酸性较强,尤其底部表层淤泥铲除后,地下水源丰富,下层的酸性物质更容易上升,以致周围的酸水不断的渗入。使底部土壤长期处在低pH值中,会影响池中生物多样性的繁殖,甚至引起对虾不适应,影响其生长,若长期无法调整,会使对虾疾病不断发生以致大量死亡。因此,要预先准备充足的石灰或底改的物资,以备暴雨或台风过后加以调节。因为雨水和地下水渗 Generally fresh water has strong soil acidity, especially after the bottom surface silt is eradicated. Therefore, groundwater is abundant and the underlying acidic substances are more likely to rise, resulting in continuous infiltration of the surrounding acidic water. Long-term bottom soil at low pH value will affect the biodiversity of the pool breeding, and even lead to shrimp adaptation, affecting their growth, if the long-term can not be adjusted, the disease will continue to cause large numbers of shrimp died. Therefore, adequate preparation of lime or base materials should be prepared in advance for adjustment after heavy rains or typhoons. Because of rain and groundwater seepage