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水产养殖场场址的选择主要应考虑地形、土质、水质和水量等,并要求光照和通风良好。一、地形的选择 1、最好选择不便于耕作或耕作效果不佳的地方,如沼泽地,贫瘠地等,这样可提高经济效益。 2、要便于自流灌排,以提高放养密度。一般说来,地面坡度在2.5％以下适于建地。在地面坡度变化大时,可利用坡度平缓处建造鱼池,且不要求规格化,可将不宜造池处作为饲料地。二、土壤的选择一般说来,壤土是最理想的建池(塘)的土壤环境。因为它通水性小,土质松坚适中,吸水性较好,养分不易流失,通气性好,利于有机物分解,池内天然饵料最易繁殖,池水易肥,是水、肥、气、热状况都较好协调的土壤。其他如粘土、砂土、粉土等均不适宜。三、水的选择
The choice of aquaculture site should mainly consider the topography, soil quality, water quality and water etc., and require good lighting and ventilation. First, the choice of terrain 1, the best choice is not easy to cultivate or poor cultivation of places, such as wetlands, barren land, etc., which can improve economic efficiency. 2, to facilitate gravity drainage, in order to improve the stocking density. In general, ground slopes below 2.5% are suitable for site construction. When the gradient of the ground is large, the pond can be built with a gentle slope, and it is not required to be normalized. The pond should not be used as a feed site. Second, the choice of soil In general, loam is the best built pond (pond) soil environment. Because of its small water, soil loose pine moderate, better water absorption, nutrient loss is not easy, good ventilation, which will help organic matter decomposition, the most natural pool breeding food, water easy, is water, fertilizer, gas and heat conditions are more Well coordinated soil. Others such as clay, sand, silt, etc. are not suitable. Third, the choice of water