Spatiotemporal Distributions of Nitrifying and Denitrifying Bacteria in Soil of Minjiang Estuary Wetland

CHEN Li-hua; LÜ Xin; LIU Lan-ying; HUANG Wei; LI Yue-ren

doi:10.19303/j.issn.1008-0384.2018.10.012

Volume 33 Issue 10

Mar. 2019

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CHEN Li-hua, LÜ Xin, LIU Lan-ying, HUANG Wei, LI Yue-ren. Spatiotemporal Distributions of Nitrifying and Denitrifying Bacteria in Soil of Minjiang Estuary Wetland[J]. Fujian Journal of Agricultural Sciences, 2018, 33(10): 1078-1083. doi: 10.19303/j.issn.1008-0384.2018.10.012

Citation:

CHEN Li-hua, LÜ Xin, LIU Lan-ying, HUANG Wei, LI Yue-ren. Spatiotemporal Distributions of Nitrifying and Denitrifying Bacteria in Soil of Minjiang Estuary Wetland[J]. Fujian Journal of Agricultural Sciences, 2018, 33(10): 1078-1083. doi: 10.19303/j.issn.1008-0384.2018.10.012

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Spatiotemporal Distributions of Nitrifying and Denitrifying Bacteria in Soil of Minjiang Estuary Wetland

doi: 10.19303/j.issn.1008-0384.2018.10.012

Institute of Agricultural Quality Standards and Testing Technology Research, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350003, China

Received Date: 2018-07-06
Rev Recd Date: 2018-08-16
Publish Date: 2018-10-01

Abstract

Abstract

Nitrifying and denitrifying bacteria are the microorganisms that carry out the two major nitrogen removal processes in nature. The spatial and temporal characteristics of these microorganisms in soil on Minjiang estuary wetland were studied using the method of most probable number. The count on the nitrifying bacteria was shown a decreasing trend with increasing depth on vertical distribution, whereas, that of the denitrifying bacteria the opposite. In terms of seasonal changes, both bacteria were greater in numbers in spring and autumn than in summer. The Pearson's correlation analysis showed no significant correlation between the bacterial counts and nitrogen contents (i.e., TN, NO₃^--N and NH₄⁺-N). However, the count of nitrifying bacteria significantly correlated with that of denitrifying bacteria(P < 0.01), and NO₃^--N inversely correlated with NH₄⁺-N (P < 0.05).
- Minjiang estuary wetland,
- nitrifying bacteria,
- denitrifying bacteria,
- spatiotemporal distribution

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References(31)

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