He Wen-Xiang, Yao Min-Jie, Sun Li-Na, Sun Tie-Heng
Shenyang Key Laboratory of Environmental Engineering, Shenyang University, Shenyang 110044, China.
Ying Yong Sheng Tai Xue Bao. 2007 Aug;18(8):1921-4.
By using simulation method, this paper studied the effects of furadan on the activities of soil urease, invertase and alkaline phosphatase, with the affecting factors investigated. The results showed that after adding furadan into soil, soil urease activity was decreased first but increased then, indicating that the ecotoxicity of furadan was reduced gradually. When the concentration of furadan was less than 0.3%, soil urease, invertase and alkaline phosophatase were all activated, and in some soil samples, a significant positive correlation was observed between soil invertase activity and furadan concentration, suggesting that soil invertase activity could be used as an indicator for the soil pollution caused by furadan. It was concluded that the quality of soil and ecological environment would be kept safe under low concentrations of furadan (< or = 0.3%).
本文采用模拟方法研究了呋喃丹对土壤脲酶、蔗糖酶和碱性磷酸酶活性的影响，并对影响因素进行了探讨。结果表明，向土壤中添加呋喃丹后，土壤脲酶活性先降低后升高，表明呋喃丹的生态毒性逐渐降低。当呋喃丹浓度小于0.3%时，土壤脲酶、蔗糖酶和碱性磷酸酶均被激活，在一些土壤样品中，土壤蔗糖酶活性与呋喃丹浓度之间存在显著正相关，表明土壤蔗糖酶活性可作为呋喃丹污染土壤的指标。得出结论，在低浓度呋喃丹（≤0.3%）下，土壤质量和生态环境将保持安全。
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