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陕西省合阳县沿黄河有池塘6500多亩,是本省的主要商品鱼基地之一,池塘形成于90年代“以渔改碱,挖塘抬田”工程,水源为地下水上渗补充,池水水深2-3.5米,池底多为“锅底形”,池水易形成温跃层,水质为盐碱水,硫酸盐含量较大,一些池塘可达到440mg/L。由于水体的特殊性,H2S引起的鱼类中毒事故频繁发生,是当地水产养殖业的主要危害之一,笔者曾在滩地从事了多年养殖实践,现将养殖户的一些防治H2S的办法予以总结,以提供给同行来共同探讨。
Heyang County, Shaanxi Province, along the Yellow River ponds 6500 mu, is the province’s main commodity fish base, the pond formed in the 90’s “to change the base of fish, digging pond lift field” project, the water supply for groundwater infiltration, water depth 2-3.5 meters, the bottom of the pool mostly “pot-shaped”, the pool is easy to form a thermocline, water quality is saline-alkali, sulfate content is larger, some ponds can reach 440mg / L. Due to the particularity of water bodies, frequent occurrence of fish poisoning caused by H2S is one of the major hazards of local aquaculture. I have been engaged in farming practice for many years in the beach, and now some methods of prevention and control of H2S by farmers are summarized, To provide to peers to discuss.