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Scientifica
Volume 2017, Article ID 8539093, 9 pages
https://doi.org/10.1155/2017/8539093
Research Article

Phragmites australis + Typha latifolia Community Enhanced the Enrichment of Nitrogen and Phosphorus in the Soil of Qin Lake Wetland

1Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, China
2Department of Veterinary and Biomedical Science, College of Veterinary Medicine, University of Minnesota-Twin Cities, Saint Paul, MN 55108, USA
3Department of Mathematics, Statistics & Computer Science, College of Science, Technology, Engineering, Mathematics and Management, University of Wisconsin Stout, Menomonie, WI 54751, USA

Correspondence should be addressed to Chuan Li; moc.liamtoh@1002_nauhcil

Received 11 November 2016; Revised 3 January 2017; Accepted 22 January 2017; Published 19 February 2017

Academic Editor: Zhongqiang Li

Copyright © 2017 Zhiwei Ge et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Aquatic plants play an essential role and are effective in mitigating lake eutrophication by forming complex plant-soil system and retaining total nitrogen (TN) and phosphorus (TP) in soils to ultimately reduce their quantities in aquatic systems. Two main vegetation types (Phragmites australis community and P. australis + Typha latifolia community) of Qin Lake wetland were sampled in this study for the analysis of TN and TP contents and reserves in the wetland soils. The results showed that (1) the consumption effect of Qin Lake wetland on soluble N was much more significant than on soluble P. (2) The efficiency of TN enrichment in wetland soil was enhanced by vegetation covering of P. australis and T. latifolia. (3) Wetland soil P was consumed by P. australis community and this pattern was relieved with the introduction of T. latifolia. (4) According to the grey relativity analysis, the most intensive interaction between plants and soil occurred in summer. In addition, the exchange of N in soil-vegetation system primarily occurred in the 0–15 cm soil layer. Our results indicated that vegetation covering was essential to the enrichment of TN and TP, referring to the biology-related fixation in the wetland soil.