Effects of Wetland Plants on Nitrification and Denitrification Intensity in Sediment

DOI

10.2991/ifeesm-17.2018.358How to use a DOI?

Keywords

aquatic plant; wetland; sediment; nitrification and denitrification intensity

Abstract

By comparing the nitrification and denitrification intensity in sediments of different aquatic plant populations in Balihe Lake wetland, the main factors influencing sediment nitrification and denitrification intensity under different water depths as well as different aquatic plant populations were discussed. The results showed that the denitrification intensity in the sediments grown by phragmites australis, typha orientalis and nelumbo nucifera populations was mainly affected by the dissolved oxygen (DO) content. With the water depth increased, the DO content decreased and the denitrification intensity increased. The nitrification intensity was mainly affected by water temperature (WT), the higher the temperature was, the greater the nitrification intensity became. The sediment grown by phragmites australis, typha orientalis and nelumbo nucifera populations showed better TN removal efficiency in the wetland, at the 0.5 m water depth, the TN removal efficiency rank was phragmites australis > typha orientalis > nelumbo nucifera, when the water depth is larger (1 m), the removal efficiency rank was nelumbo nucifera > typha orientalis > phragmites australis.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Chenfeng He
AU  - Hualin Wang
AU  - Zhengda Duan
AU  - Zhongyu Wang
AU  - Huayong Zhang
PY  - 2018/02
DA  - 2018/02
TI  - Effects of Wetland Plants on Nitrification and Denitrification Intensity in Sediment
BT  - Proceedings of the 2017 3rd International Forum on Energy, Environment Science and Materials (IFEESM 2017)
PB  - Atlantis Press
SP  - 1991
EP  - 1995
SN  - 2352-5401
UR  - https://doi.org/10.2991/ifeesm-17.2018.358
DO  - 10.2991/ifeesm-17.2018.358
ID  - He2018/02
ER  -