Patterns of wetland plant diversity along estuarine stress gradients of the Elbe (Germany) and Connecticut (USA) Rivers

2009 ◽  
Vol 2 (3) ◽  
pp. 301-311 ◽  
Author(s):  
J. Gesina Engels ◽  
Kai Jensen
Keyword(s):  
Plant Diversity ◽  
Wetland Plant ◽  
Stress Gradients

scholarly journals Seasonal impoundment alters patterns of tidal wetland plant diversity across spatial scales

Ecosphere ◽  
2021 ◽  
Vol 12 (2) ◽  
Author(s):  
Scott F. Jones ◽  
Christopher N. Janousek ◽  
Michael L. Casazza ◽  
John Y. Takekawa ◽  
Karen M. Thorne
Keyword(s):  
Plant Diversity ◽  
Spatial Scales ◽  
Tidal Wetland ◽  
Wetland Plant

Assessment of the Effects of Ornamental Wetland Polyculture Combinations on Urban Sewage Treatment

2021 ◽  
Author(s):  
Min Wang ◽  
Yujue Zhou ◽  
Lin Xiang ◽  
Xiaoyang Ke ◽  
Hui Zhang ◽  
...  
Keyword(s):  
Plant Diversity ◽  
Municipal Wastewater ◽  
Plant Biomass ◽  
Removal Rate ◽  
Sewage Treatment ◽  
Oxygen Demand ◽  
Wetland Plant ◽  
Urban Sewage ◽  
Thalia Dealbata ◽  
Cyperus Alternifolius

Abstract Previous studies have shown that wetland plants can treat wastewater in a cost-effective and sustainable way, however, the studies on the performance of ornamental wetland plant diversity in treating urban sewage were scarce. Therefore, this study was conducted to assess and select wetland polyculture combination that was effective in urban sewage treatment in subtropical areas. We formed five combinations out of six ornamental wetland plant species including Thalia dealbata, Cyperus alternifolius, Iris pseudacorus, Lythrum sastlicaria, Nymphaea tetragona, and Zantedeschia aethiopica. The growth state and removal effects of each plant combination were systematically measured and assessed. The results indicated all the combinations exhibited remarkable total nitrogen (TN), total phosphorus (TP), ammonium nitrogen (NH­4+-N), and chemical oxygen demand chromium (CODcr) removal rate of 70.75%-77.67%, 63.86%-73.71%, 69.73%-76.85%, and 57.28%-75.69%, respectively. Additionally, pH was reduced to 7.54-8.00 in the sewage. The purification effect reached the best during 30-36th day. The comprehensive assessment showed the mixture of Thalia dealbata + Cyperus alternifolius, closely followed by Thalia dealbata + Cyperus alternifolius+ Lythrum sastlicaria, was highly effective at extracting various pollutants, and both of them could be used as favorable combinations to convert eutrophication and purify municipal wastewater. Linear regression showed that TP, TP, NH­4+-N, and CODcr. were significantly related to plant biomass, indicating that plant biomass essential indicator for screening purification plants. Our study highlighted the importance of plant diversity in biological wastewater treatment, however the competition between plants was suggested to take into consideration in future studies.

scholarly journals Wetland Plant Diversity in a Coastal Nature Reserve in Italy: Relationships with Salinization and Eutrophication and Implications for Nature Conservation

2018 ◽  
Vol 41 (7) ◽  
pp. 2079-2091 ◽  
Author(s):  
Renato Gerdol ◽  
Lisa Brancaleoni ◽  
Lorenzo Lastrucci ◽  
Giovanni Nobili ◽  
Mauro Pellizzari ◽  
...  
Keyword(s):  
Nature Conservation ◽  
Plant Diversity ◽  
Nature Reserve ◽  
Wetland Plant

Study on wetland plant diversity and its influencing factors in the Qixing River Basin of Sanjiang Plain

2020 ◽  
Vol 40 (5) ◽  
Author(s):  
单元琪 SHAN Yuanqi ◽  
姚允龙 YAO Yunlong ◽  
张欣欣 ZHANG Xinxin ◽  
张强 ZHANG Qiang
Keyword(s):  
Influencing Factors ◽  
River Basin ◽  
Plant Diversity ◽  
Sanjiang Plain ◽  
Wetland Plant

Plant diversity and species richness of Ljubljana marsh grasslands under the influence of different cutting and fertilizing regimes

2009 ◽  
Vol 57 (2) ◽  
pp. 197-203 ◽  
Author(s):  
T. Sinkovč
Keyword(s):  
Species Richness ◽  
Plant Diversity ◽  
Grassland Management ◽  
Botanical Composition ◽  
Significant Negative Effect ◽  
Negative Effect ◽  
Cutting Regimes ◽  
N Rates ◽  
Exploitation Intensity ◽  
Plot Design

The botanical composition of grasslands determines the agronomic and natural values of swards. Good grassland management usually improves herbage value, but on the other hand it frequently decreases the plant diversity and species richness in the swards. In 1999 a field trial in a split-plot design with four replicates was therefore established on the Arrhenatherion type of vegetation in Ljubljana marsh meadows in order to investigate this relationship. Cutting regimes (2 cuts — with normal and delayed first cut, 3 cuts and 4 cuts per year) were allocated to the main plots and fertiliser treatments (zero fertiliser — control, PK and NPK with 2 or 3 N rates) were allocated to the sub-plots. The results at the 1 st cutting in the 5 th trial year were as follows: Fertilising either with PK or NPK had no significant negative effect on plant diversity in any of the cutting regimes. In most treatments the plant number even increased slightly compared to the control. On average, 20 species were listed on both unfertilised and fertilised swards. At this low to moderate level of exploitation intensity, the increased number of cuts had no significant negative effect on plant diversity either (19 species at 2 cuts vs. 20 species at 3 or 4 cuts). PK fertilisation increased the proportion of legumes in the herbage in the case of 2 or 3 cuts. The proportion of grasses in the herbage increased in all the fertilisation treatments with an increased numbers of cuts. Fertiliser treatment considerably reduced the proportion of marsh horsetail ( Equisetum palustre ) in the herbage of the meadows. This effect was even more pronounced at higher cut numbers. The proportion of Equisetum palustre in the herbage was the highest in the unfertilised sward with 2 cuts (26.4 %) and the lowest in the NPK-fertilised sward with 4 cuts (1.4%).

Response of a Wetland Plant Community to Management of Phragmites Australis (Poaceae) in Southwestern Connecticut

Rhodora ◽  
10.3119/19-05 ◽  
2020 ◽  
Vol 122 (989) ◽  
pp. 48
Author(s):  
Edward K. Faison ◽  
Geordie Elkins ◽  
Kathleen Kitka ◽  
David R. Foster
Keyword(s):  
Plant Community ◽  
Phragmites Australis ◽  
Wetland Plant
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