低分子量有机酸和杂酚油对沙质土壤磷酸酶活性的联合作用

Q3 Earth and Planetary Sciences

Polish Journal of Soil Science Pub Date : 2018-01-15 DOI:10.17951/PJSS.2017.50.2.177

A. Telesiński, M. Płatkowski, T. Krzyśko-Łupicka, B. Pawłowska, K. Cybulska, K. Curyło

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引用次数: 3

摘要

研究了杂酚油和低分子量有机酸对土壤酸性磷酸单酯酶、碱性磷酸单酯酶、磷酸三酯酶和无机焦磷酸酶活性的影响。以有机碳含量为8.71 g·kg -1的壤土砂样品为研究对象，杂酚油添加量分别为0、0.5%、2.5%;低分子woas类型:草酸、酒石酸、柠檬酸，用量为50 mmol·kg -1;试验天数:1、7、14、28、56、112。结果表明，杂酚油污染导致土壤磷酸酶活性降低。所观察到的效果并不总是随着污染物剂量的增加而增加。在测定的磷酸酶中，变化最大的是磷酸单酯酶的活性。低分子woas对污染土壤的抑制作用主要是对磷酸酶的抑制作用，尤其是对酸性磷酸单酯酶的抑制作用。结果表明，柠檬酸对土壤磷酸酶的毒性最小。

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Combined effect of low-molecular-weight organic acids and creosote on phosphatase activities in sandy soil

This paper assesses the impact of creosote and low-molecular-weight organic acids (LMWOAs) on the activity of acid phosphomonoesterase, alkaline phosphomonoesterase, phosphotriesterase, and inorganic pyrophosphatase in soil. The experiment was carried out on loamy sand samples with organic carbon content of 8.71 g · kg -1 , with the following variable factors: dosages of creosote: 0, 0.5%, and 2.5%; type of LMWOAs: oxalic acid, tartaric acid, and citric acid in the amount of 50 mmol · kg -1 of soil; days of experiment: 1, 7, 14, 28, 56, 112. Obtained results showed that contamination with creosote caused decrease in the activity of soil phosphatases. The observed effect did not always increase with increase in the dosage of the pollutant. Among the assayed phosphatases, the biggest changes were noted in the activity of phosphomonoesterases. Application of LMWOAs to contaminated soil mainly effected the inhibition of phosphatase, especially the activity of acid phosphomonoesterase. Comparison of the effects of LMWOAs showed that the citric acid was the least toxic to soil phosphatases.

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来源期刊

Polish Journal of Soil Science Earth and Planetary Sciences-Earth-Surface Processes

CiteScore

1.00

自引率

0.00%

发文量

期刊介绍： The Journal focuses mainly on all issues of soil sciences, agricultural chemistry, soil technology and protection and soil environmental functions. Papers concerning various aspects of functioning of the environment (including geochemistry, geomophology, geoecology etc.) as well as new techniques of surveing, especially remote sensing, are also published.