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池塘养殖生态系是一种人工生态系统,其特点是水体面积小,深度浅,水交换量较低,而养殖密度又较高,且一般通过大量投饵来提高鱼产量。如此,鱼体排泄物和多余残饵的沉积与分解,往往会使池塘底泥和水体中的营养盐和有机物浓度升高,透明度下降,从而引起了一系列问题[1]:化学耗氧量(C
The pond aquaculture ecosystem is a man-made ecosystem characterized by small areas of water, shallow depths, low water exchange rates, and high stocking densities, and generally increases fish production through large amounts of feed. In this way, the deposition and decomposition of fish excrement and excess bait tend to increase the concentration of nutrients and organic matter in pond sediments and bodies of water and decrease the transparency, causing a series of problems [1]: chemical oxygen demand (C