RESEARCH PAPER
Effects of heavy metal Cd pollution on microbial activities in soil
Weilin Shi 1
,  
Xiying Ma 1  
 
 
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University of Science and Technology, Kerui Road 1, Gaoxin, Section, Suzhou 215011, Jiangsu, China
 
Ann Agric Environ Med. 2017;24(4):722–725
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ABSTRACT:
Heavy metal contamination of soil occurs when heavy metals are introduced to soil through human activities, leading to the gradual deterioration of the ecology and environment. Microorganism activity reflects the intensity of various biochemical reactions in soil, and changes in it reflect the level of heavy metal pollution affecting the soil. The effects were studied of heavy metal Cd on the microbial activity of soil at different concentrations by investigating the respiratory intensity, urease activity, and catalase activity in forest soil and garden soil. The results showed that the respiratory intensity, urease and catalase activities in the garden soil were all higher than in the forest soil. Cd has obvious inhibitory effects on microbial activities. The three parameters exhibited a downward trend with increasing concentrations of Cd. Catalase activity increased when the mass concentration of Cd reached 1.0 mg/kg, indicating that low concentrations of Cd can promote the activity of some microorganisms. Respiratory intensity and urease activity also increased when the concentration reached 10.0 mg/kg, showing that respiratory intensity and urease activity have strong response mechanisms to adverse conditions. The effective state of Cd in soil, as well as inhibition of microbial activity, decreased with incubation time.
CORRESPONDING AUTHOR:
Xiying Ma   
University of Science and Technology, Kerui Road 1, Gaoxin, Section, Suzhou 215011, Jiangsu, China
 
REFERENCES (22):
1. Chen H. Heavy metal pollution in soil plant system (in Chinese) [M]. Peking: Science Press, 1996: 71–85.
2. GaoLiang. Soil pollution and its prevention measures. Agricultural Environmental Protection 1992; 11(6): 272–276.
3. Nriagu J O, Pacyna J M. Quantitative assessment of worldwide contamination of air, water and soils by trace metals. Nature. 1998; 333(6169): 134–139.
4. Yamagatan, Shigematsu I. Cd pollution in perspective. Bull Inst Public Health 1970; 19(1): 1–27.
5. Fan DF, Wu XM, Chen B. Discussion on remediation methods of cadmium pollution in soil poisonous elements. Jiangsu Geology. 2005; 29(1): 32–36.
6. Tu CM. Influence of five pyrethroid insecticides on microbial population and activity in soil. Microbial Ecol. 1980; 5: 321–327.
7. Emily E, Austin AC, Hector FC, Sides KE, Schadt CW, Classen AT. Assessment of 10 years of CO2 fumigation on soil microbial communities and function in a sweetgum plantation. Soil Biol Biochem, 2009; 41: 514–520.
8. Smirnova N, Demyan MS, Rasche F, Cadisch G, Müller T. Calibration of CO2 Trapping in Alkaline Solutions during Soil Incubation at Varying Temperatures Using a Respicond VI. Open J Soil Sci. 2014; 4: 161–167.
9. Neilson JW, Artiola JF, Maier RM. Characterization of lead removal from contaminated soils by non-toxic soil-washing agents. J Environment Quality. 2003; 32: 899- 908.
10. Qin Y, Zhao J, Liu Zhenqian. Effects of heavy metal Cu and Pb combined pollution on soil respiration (in Chinese). J Agric Sci. 2008; 3:1117–1128.
11. Parthasarathi K, Ranganathan LS. Aging effect on enzyme activities in pressmud vermicasts of Lampito mauritii (Kinberg) and Eudrilus eugeniae (Kinberg). Biol Fertil Soils. 2000; 30: 347–350.
12. Marzadori C, Ciavatta C, Montecchio D, Gessa C. Effects of lead pollution on different soil enzyme activities. Biol Fertil Soils. 1996; 22(1): 53–58.
13. Wang G, Luo Y, Song J. Study on the guidance value and standard of soil environmental quality. J Soil Sci. (in Chinese), 2005; 42(4): 666–673.
14. Liu S, Li J, Guo X. Li BL. Analysis of pretreatment technology of heavy metals in soil samples. Environmental protection of oil and gas fields (in Chinese), 2012; 22(4): 61–64.
15. Guan S. Soil enzyme and its research methods [M]. Peking: Beijing Hope Electronic Publishing House, 1986.
16. Zhou L, Zhang Z. Method for determination of soil enzyme activity. Chin J Soil Sci. 1980; 11(5): 37–38.
17. Zhou LK, Zhang ZM, Determination method of soil enzyme activity. Chin J Soil Sci. 1980; 11(5): 37–38.
18. Feng X, Duan JP, Pu XP, Zou Yu, Li CR. Comparative analyses two methods between of measuring soil urease activity. Grassland Turf. 2008; 127: 70–72.
19. Zeng L, Liao M, Huang C. Effects of cadmium pollution on microbial biomass, enzyme activity and physiological indexes of rice. J Appl Ecol. (in Chinese), 2006; 16(11): 2162–2167.
20. Liu Yanfeng, Ding Keqiang, Wang Rongjun. Effects of Cu and butachlor on soil respiration. J of anhui agricultural sciences (in Chinese), 2009; 37(36): 18073–18074.
21. Gao Xiuli, Xin Weiqin, Ran Yongliang, et.al. Effects of heavy metal accumulation on soil enzyme activities. Asian J Ecotoxicol. ISTIC (in Chinese) 2012; 7(3): 331–336.
22. Meng Qingfeng, Ynag Jingsong, Yao Rongjiang, et. al. Effects of single and compound heavy metal pollution on soil enzyme activities. J Ecological Environ. (in Chinese), 2012; (3): 545–550.
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