The Study of Denitrification Rate and N2O Release Rate in Shuangtaizi Estuary Wetland

Article Preview

Abstract:

The denitrification and its influencing factors were studied in reed, suaeda heteroptera and reed degraded wetland. PDR were similar in reed and suaeda heteroptera wetland; primary influencing factors were temperature, nitrate and TOC. pN2O, N2O/ (N2O + N2) were less in reed wetland than that in suaeda heteroptera wetland; significant influencing factor was ORP. Compared with the reed wetland, the PDR in reed degraded wetland had significantly reduced, whose limiting factor was TOC concentration in soil; the ration of N2O/ (N2O + N2) had increased and the pN2O had no obvious change in reed degraded wetland.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

416-419

Citation:

Online since:

October 2014

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2014 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] Y. Kumon, Y. Sasaki, I. Kato, et al. Codenitrification and denitrification are dual metabolic pathways through which dinitrogen evolves from nitrate in Streptomyces antibioticus, Journal of bacteriology, 2002, 184(11), pp.2963-2968.

DOI: 10.1128/jb.184.11.2963-2968.2002

Google Scholar

[2] A.R. Hill, M. Cardaci. Denitrification and organic carbon availability in riparian wetland soils and subsurface sediments, Soil Science Society of America Journal, 2004, 68(1), pp.320-325.

DOI: 10.2136/sssaj2004.0320

Google Scholar

[3] S.K. Dodla, J.J. Wang, R.D. Delaune, et al. Denitrification potential and its relation to organic carbon quality in three coastal wetland soils, Science of the total environment, 2008, 407(1), pp.471-480.

DOI: 10.1016/j.scitotenv.2008.08.022

Google Scholar

[4] C. Wang, G. Zhu Y. Wang, et al. Nitrous oxide reductase gene (nosZ and N2O reduction along the littoral gradient of a eutrophic freshwater lake[J]. Journal of Environmental Sciences, 2013, 25(1), pp.44-52.

DOI: 10.1016/s1001-0742(12)60005-9

Google Scholar

[5] D.L. Saunders, J. Kalff. Nitrogen retention in wetlands, lakes and rivers [J]. Hydrobiologia, 2001, 443(1-3), pp.205-212.

Google Scholar

[6] G.X. Wang, G.D. Cheng. The influence on alpine meadow soil by land cover change [J]. Science Bulletin, 2002, 47(23), pp.1771-1777.

Google Scholar

[7] G.Y. Zou, F.S. Zhang. Rhizosphere denitrification and N2O release [J]. Journal of China Agricultural University, 2002, 7(1), pp.77-82.

Google Scholar