Distribution of Triarrhena lutarioriparia and its reserve characteristics of nitrogen and phosphorus in Dongting Lake

doi:10.1051/e3sconf/202123701004

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Title	Distribution of Triarrhena lutarioriparia and its reserve characteristics of nitrogen and phosphorus in Dongting Lake
Creator	Xu，Youze 1; Fu，Guangyi 1; Tang，Nan 1; He，Zhonghao 2; Jian，Lincheng 1; Zhao，Yuanyuan 1
Date Issued	2021-02-09
Source Publication	E3S Web of Conferences
ISSN	2555-0403
Volume	237
Abstract	Triarrhena lutarioriparia, a typical and most abundant macrophyte in Dongting lake wetland, was in the state of abandonment following the papermaking industry revocation in the lake basin. In order to provide scientific basis for precise management of T. lutarioriparia, the T. lutarioriparia distribution charateristics in Dongting Lake and its storage characteristics of nutrients were investigated in this study. Remote sensing interpretation results showed that the total area of T. lutarioriparia in Dongting Lake wetland was 58, 450 ha, 48.31% of which distributed in South Doting Lake wetlands. The nutrients contents were significantly different in T. lutarioriparia tissues, ranking in the descending order of spikes (TN 27.90 mg/g, TP 3.46 mg/g)>leaves (TN 16.38 mg/g, TP 2.11 mg/g)>stems (TN 5.38 mg/g, TP 0.85 mg/g). The total P quantities in each T. lutarioriparia tissue were ranked in the order: stems (560.26 t)>leaves (396.52 t)>spikes (284.67 t), while the total N quantities were within the range of 2170.02-2801.3 t. It was estimated that about 7712.99 t of TN and 1241.45 t of TP were annually removed from Dongting Lake by reaping T. lutarioriparia. The nutrients stored in the dead tissues of T. lutarioriparia might possess non-negligible impact on the water quality of Doting Lake.
DOI	10.1051/e3sconf/202123701004
URL	View source
Language	英语English
Scopus ID	2-s2.0-85101581695
Citation statistics	Cited Times [WOS]:0 [WOS Record] [Related Records in WOS]
Document Type	Conference paper
Identifier	http://repository.uic.edu.cn/handle/39GCC9TT/6033
Collection	Beijing Normal-Hong Kong Baptist University
Corresponding Author	Zhao，Yuanyuan
Affiliation	1.Hunan Research Academy of Environmental Science,Hunan Provincial Key Laboratory of Water Pollution Control Technology,Changsha Hunan,410000,China 2.Beijing Normal University-Hong Kong Baptist University United International College,Zhuhai Guangdong,519000,China
Recommended Citation GB/T 7714	Xu，Youze,Fu，Guangyi,Tang，Nanet al. Distribution of Triarrhena lutarioriparia and its reserve characteristics of nitrogen and phosphorus in Dongting Lake[C], 2021.

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