Effect of organic/inorganic compounds on the enzymes in soil under acid rain stress

Article type: Research Article

Authors: LIU, Guang-shen | XU, Dong-mei | WANG, Li-ming | LI, Ke-bin | LIU, Wei-ping

Affiliations: Environmental Science Institute of Zhejiang University, Hangzhou 310029, China

Note: [] Corresponding author. E-mail: [email protected]

Abstract: The main effects of pollutions including acid rain, Cu^{2+}, atrazine and their combined products on the activities of urease, invertin, acid phosphatase and catalase were studied by means of orthogonal test. The results showed that H^^+ and Cu^{2+} had significant influence on the activities of four enzymes and the ability of their inhibiting followed the order: H^+ � Cu^{2+}. Al^{3+} and atrazine only had litter effects on the activity of urease and phosphatase, respectively. Furthermore, interaction analysis revealed that Cu^{2+}-H^+ affected on the activity of acid phosphatase significantly and antagonism on invertin and urease, Cu^{2+}-atrazine only exhibited the synergism on the activity of acid phosphatase. But atrazine-H^+ had non-interaction within the investigated concentration range. Among four enzymes, acid phosphatase was the most sensitive one to the contaminations.

Keywords: combined pollution, orthogonal test, hydrolase, activity

Journal: Journal of Environmental Sciences, vol. 16, no. 2, pp. 177-180, 2004