Click for new scientific resources and news about Corona[COVID-19]

Paper Information

Journal:   INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST)   SUMMER 2008 , Volume 5 , Number 3 (19); Page(s) 409 To 414.
 
Paper: 

EFFECTS OF HEAVY METAL POLLUTION ON THE SOIL MICROBIAL ACTIVITY

 
 
Author(s):  NWUCHE C.O.*, UGOJI E.O.
 
* DEPARTMENT OF MICROBIOLOGY UNIVERSITY OF NIGERIA, NSUKKA, ENUGU STATE, NIGERIA
 
Abstract: 

The effects of heavy metals on soil microbial processes were investigated over a period of six weeks. Analytical grade (Sigma) sulphate salts of copper, zinc and nickel were added individually and in combinations to soil samples and incubated in different plastic pots. Samples were taken from the pots forthnightly and the rates of microbial carbon and nitrogen mineralization, microbial biomass carbon and respiration were measured. The results showed the effect of metals on the measured parameters were significant (P<0.05). By the 6th week postreatment, the rates of carbon accumulated were high in the copper (6.03%) and copper:zinc (5.80 %) treatments but low in the nickel and zinc (4.93% and 5.02% respectively). The rates of nitrogen mineralization were 0.41 and 0.44 % in samples treated with copper and copper: zinc compared to 0.22%-0.24% obtained at the beginning of the experiments. Soil microbial biomass carbon declined from average value of 183.7–185.6mg/g before treatment to as low as 100.8 and 124.6mg/g in samples treated with copper:zinc and copper respectively. The rate of respiration of the soil microbial populations was equally inhibited by the metals. From an average rate of 2.51-2.56mg of C/g respiration of the soil microbes declined to 0.98, 1.08 and 1.61mg of C/g in the copper:zinc, copper and zinc treated soils by the end of the experiment. The results suggest additive or synergistic effects of the metals.

 
Keyword(s): MINERALIZATION, MICROBIAL BIOMASS CARBON, ADDITIVE, SYNERGISTIC, HEAVY METALS
 
 
References: 
  • Not Registered.
  •  
  •  
 
Citations: 
 
+ Click to Cite.
APA: Copy

NWUCHE, C., & UGOJI, E. (2008). EFFECTS OF HEAVY METAL POLLUTION ON THE SOIL MICROBIAL ACTIVITY. INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST), 5(3 (19)), 409-414. https://www.sid.ir/en/journal/ViewPaper.aspx?id=109630



Vancouver: Copy

NWUCHE C.O., UGOJI E.O.. EFFECTS OF HEAVY METAL POLLUTION ON THE SOIL MICROBIAL ACTIVITY. INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST). 2008 [cited 2021October16];5(3 (19)):409-414. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=109630



IEEE: Copy

NWUCHE, C., UGOJI, E., 2008. EFFECTS OF HEAVY METAL POLLUTION ON THE SOIL MICROBIAL ACTIVITY. INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST), [online] 5(3 (19)), pp.409-414. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=109630.



 
  pdf-File
Yearly Visit 111
 
 
Latest on Blog
Enter SID Blog