NDLI: Changes in Microbial Functional Diversity and Activity in Paddy Soils Irrigated with Industrial Wastewaters in Bandung, West Java Province, Indonesia

Content Provider	Springer Nature Link
Author	Chaerun, Siti Khodijah Pangesti, Nurmi P. D. Toyota, Koki Whitman, William B.
Copyright Year	2010
Abstract	Characteristics, such as microbial biomass, basal respiration, and functional diversity of the microbial communities, were investigated in paddy soils located in Bandung, West Java Province, Indonesia, that have been heavily polluted by industrial effluents for 31 years. Paddy soil samples (10–20 cm) were taken from two sites: polluted soils and unpolluted soils (as control sites). The polluted soils contained higher salinity, higher sodicity, higher nutrient contents, and elevated levels of heavy metals (Cr, Mn, Ni, Cu, and Zn) than unpolluted soils. Soil physicochemical properties, such as maximum water holding capacity, exchangeable sodium percentage, sodium adsorption ratio, and swelling factor, in polluted soils were much greater than those in unpolluted soils (P < 0.05). Changes in the physical and chemical soil properties were reflected by changes in the microbial communities and their activities. BIOLOG analysis indicated that the functional diversity of the microbial community of polluted soils increased and differed from that of unpolluted soils. Likewise, the average rate of color development (average well color development), microbial biomass (measured as DNA concentration), and the soil CO$_{2}$ respiration were higher in polluted soils. These results indicate that major changes in the chemical and physical properties of paddy soils following the application of industrial wastewater effluents have had lasting impacts on the microbial communities of these soils. Thus, the increased activity, biomass, and functional diversity of the microbial communities in polluted soils with elevated salinity, sodicity, and heavy metal contents may be a key factor in enhancing the bioremediation process of these heavily polluted paddy soils.
Starting Page	491
Ending Page	502
Page Count	12
File Format	PDF
ISSN	00496979
Journal	Water, Air, and Soil Pollution
Volume Number	217
Issue Number	1-4
e-ISSN	15732932
Language	English
Publisher	Springer Netherlands
Publisher Date	2010-09-16
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Soil CO$_{2}$ respiration BIOLOG Bioremediation ESP Heavy metals SAR Soil Science & Conservation Atmospheric Protection/Air Quality Control/Air Pollution Hydrogeology Environment Waste Water Technology Water Pollution Control Water Management Aquatic Pollution Climate Change
Content Type	Text
Resource Type	Article
Subject	Ecological Modeling Environmental Chemistry Pollution Environmental Engineering Water Science and Technology

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