良好生态环境的养鱼池塘,塘底需要一定厚度的底泥,它对于调节池水肥度、酸碱度以及一些鱼类的藏匿和越冬等都有积极的作用。对于一般养殖鱼类而言,适宜的底泥厚度以10～15 cm为佳。但是,有不少养鱼户对此缺乏认识,池塘经过多年的使用也不清淤,底泥的厚度远远超过这一标准,有的达到0.5m以上,还有的甚至超过0.8 m。 A good ecological environment of fish ponds, the bottom of the pond requires a certain amount of sediment, which is to regulate the water and fertilizer, pH and some fish hiding and wintering, etc. have a positive effect. For general farmed fish, suitable sediment thickness of 10 ~ 15 cm is better. However, many fish farmers lack this understanding. Ponds have not been dredged for years of use. The thickness of sediment far exceeds this standard, with some reaching more than 0.5 m and even more than 0.8 m.