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土壤磷酸酶是一类催化土壤有机磷矿化的酶，其活性的高低直接影响着土壤中有机磷的分解转化及其生物有效性，是评价土壤磷素生物转化方向与强度的指标。土壤磷酸酶受到土壤碳、氮含量、有效磷含量和pH显著影响，根据最适pH范围，通常分为酸性、中性和碱性三种类型。 测定原理：酸性环境中，S-ACP催化磷酸苯二钠水解生成苯酚和磷酸氢二钠，通过测定酚的生成量即可计算出S-ACP活性。
Soil acid phosphatase is a type of enzyme that catalyzes the mineralization of organic phosphorus in soil. Its activity directly affects the decomposition, transformation, and bioavailability of organic phosphorus in the soil, making it an indicator for evaluating the direction and intensity of phosphorus biological transformation. The activity of soil phosphatase is significantly influenced by soil carbon and nitrogen content, available phosphorus levels, and pH. Based on the optimal pH range, it is typically classified into three types: acid, neutral, and alkaline phosphatase. Assay Principle: In an acidic environment, S-ACP catalyzes the hydrolysis of disodium phenyl phosphate to produce phenol and disodium hydrogen phosphate. The activity of S-ACP is calculated by measuring the amount of phenol generated.
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