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近几年来,池塘养鱼在本市发展很快,其养殖面积已发展至20万亩,但由于淡水资源的缺乏,其中约有60％左右养殖面积不能正常换水,池水呈严重老化状况,其主要特征表现为池水缺氧,物质循环状况不良,有害物质积累过高,从而影响鱼产量及质量。本项目利用微循环水的技术手段,使常年不能换水的死水塘变成活水塘,实现水体交换,改善池塘溶解氧分布,降低氧债,促进池塘的物质良性循环,在不增加物质投入的基础上,实现提高产量,增加效益之目的。今年利用本所48亩池塘进行了微循环水
In recent years, the rapid development of pond fish in the city, the area has been developed to 200000 acres of culture, but due to the lack of freshwater resources, of which about 60% of the area can not be properly changed aquaculture, water was seriously aging, Its main characteristic is the lack of oxygen in the pond water, the poor circulation of materials and the excessive accumulation of harmful substances, which affects the fish yield and quality. This project makes use of the technology of microcirculation water to make the dead pool, which can not change water all the year round, become a living pond, exchange water, improve the distribution of dissolved oxygen in the pond, reduce the debt of oxygen and promote the material virtuous cycle of the pond, Based on the realization of increased production, increase efficiency purposes. This year the use of 48 acres of the pond for microcirculation water