The effects of sepiolite and biochar on the enzymatic activities of the soil in Cd- and atrazine-contaminated soils were studied. During the growth of pakchoi, the activities of acid phosphatase, sucrase, acid protease, and cellulase decreased, catalase activity increased, and urease activity decreased first and then increased. At the first harvest, compared with that for the control group, the soil pH after treatment with remediation materials increased from 5.41 to 7.43; the activities of urease, acid protease, and catalase increased by 62.8%, 38.6%, and 86.1%, respectively. And the activities of sucrase and acid phosphatase decreased by 17.3% and 24.7%, respectively. At the second harvest, the activities of acid phosphatase, acid protease, and cellulase continued to increase, but those of sucrase and catalase decreased. The results showed that soil enzyme activity was closely related to the type and addition of remediation materials, as well as the type of the enzyme.

中文翻译：

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海泡石和生物炭对镉和At去津污染土壤酶活性的影响。

研究了海泡石和生物炭对镉和at去津污染土壤中酶活性的影响。在小白菜的生长过程中，酸性磷酸酶，蔗糖酶，酸性蛋白酶和纤维素酶的活性降低，过氧化氢酶活性升高，脲酶活性先降低后升高。与对照组相比，第一次收获时，用修复材料处理后的土壤pH从5.41增加到7.43；脲酶，酸性蛋白酶和过氧化氢酶的活性分别增加了62.8％，38.6％和86.1％。蔗糖酶和酸性磷酸酶的活性分别下降了17.3％和24.7％。在第二次收获时，酸性磷酸酶，酸性蛋白酶和纤维素酶的活性继续增加，而蔗糖酶和过氧化氢酶的活性下降。