Department of Biogeochemistry and Soil Science, Faculty of Agriculture and Biotechnology, University of Science and Technology, Bernardyńska 6 St., 85-029, Bydgoszcz, Poland.
Environ Sci Pollut Res Int. 2019 May;26(13):13014-13024. doi: 10.1007/s11356-019-04830-x. Epub 2019 Mar 20.
The activity of enzymes in soil is sensitive to the changes in soil properties affected by biotic and abiotic factors. This study investigates the influence of salinity on some enzymes (catalase CAT, dehydrogenases DEH, alkaline AlP, and acid AcP phosphatase) and pH in 0.01 M CaCl, EC, the content of total organic carbon, and total nitrogen in technogenic salinization soil next to the soda plant. Seven soil sampling sites were selected (S1-S6) in the area close to the soda plant and C (the control). Based on the enzyme activity, also soil indicators were calculated: the resistance index (RS), enzymatic pH indicator [Formula: see text], the factor of the impact of anthropopressure (IF), the biological index of fertility (BIF), and the indices of biochemical soil activity (BA12 and BA13). The above study did not show one-way changes of the parameters investigated. The relations between the parameters and the activity of catalase, dehydrogenase, alkaline, and acid phosphatase show that they are mostly determined by the state of salinity of the soil environment. The calculated index of resistance (RS), as an effective means of the enzymatic response to environmental stress, facilitated putting the enzymes in the following series: CAT>DEH>AlP>AcP. It shows that catalase and dehydrogenases are most resistant to the anthropogenic factor. The calculated values of BA12 and BA13 indices showed the differences between technogenic salinization soils and the soil sampled from the control. The lowest BIF values were observed at S6 and S3, S4, and C.
土壤中酶的活性对生物和非生物因素影响的土壤性质变化敏感。本研究调查了盐度对苏打厂附近人为盐化土壤中一些酶（过氧化氢酶 CAT、脱氢酶 DEH、碱性 AlP 和酸性 AcP 磷酸酶）和 pH 的影响，以及 0.01 M CaCl 中的电导率、总有机碳和总氮含量。在苏打厂附近选择了七个土壤采样点（S1-S6）和 C（对照）。基于酶活性，还计算了土壤指标：抗性指数（RS）、酶 pH 指标[公式：见文本]、人为压力影响因子（IF）、肥力生物指数（BIF）和生化土壤活性指数（BA12 和 BA13）。上述研究并未显示出所研究参数的单向变化。参数与过氧化氢酶、脱氢酶、碱性和酸性磷酸酶活性之间的关系表明，它们主要由土壤环境的盐度状态决定。计算出的抗性指数（RS）作为酶对环境胁迫的有效反应手段，将酶排列如下：CAT>DEH>AlP>AcP。这表明过氧化氢酶和脱氢酶对人为因素最具抗性。BA12 和 BA13 指数的计算值显示了人为盐化土壤与对照采样土壤之间的差异。S6 和 S3、S4 和 C 的 BIF 值最低。
