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Biodiversity Conservation of Aquatic Organisms, Especially Aquatic Plants, and Aquatic Ecosystem Health

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Biodiversity and Functionality of Aquatic Ecosystems".

Deadline for manuscript submissions: 1 September 2025 | Viewed by 2121

Special Issue Editors

Dr. Yu Cao

E-Mail Website
Guest Editor
Wuhan Botanical Garden, Chinese Academy of Science, Wuhan, China
Interests: aquatic plants; functional trait; biodiversity
Special Issues, Collections and Topics in MDPI journals
Dr. Zhizhong Li

E-Mail Website
Guest Editor
School of Ecology and Environment, Anhui Normal University, Wuhu, China
Interests: phylogenomic; biodiversity; adaptive evolution; aquatic botany

Special Issue Information

Dear Colleagues,

The Yangtze River Basin, as one of the high biodiversity regions in the world, harbors a vast array of aquatic plants that play critical roles in maintaining the health of aquatic ecosystems. This Special Issue aims to explore the complex interactions between aquatic plants and the broader ecosystem, emphasizing both the conservation of biodiversity and the sustainable use of plant resources. We also aim to focus on the following key areas: aquatic plants and aquatic ecosystem health, diversity and conservation of aquatic plants, conservation and utilization of aquatic plant resources, invasive aquatic plants and ecological security, etc.

Dr. Yu Cao
Dr. Zhizhong Li
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Water is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • aquatic plant
  • water security
  • aquatic ecosystem health
  • biodiversity

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (2 papers)

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Research

14 pages, 1710 KiB  
Article
Increased Nutrient Levels Induce Different Allocation Strategies Between Canopy-Forming and Rosette-Like Submerged Macrophytes
by Yongwei Zhi, Wei Wang, Wei Li, Yu Cao and Manli Xia
Water 2024, 16(22), 3196; https://doi.org/10.3390/w16223196 - 7 Nov 2024
Viewed by 929
Abstract
Submerged macrophytes play an important role in maintaining the structure and function of shallow lakes. Under eutrophication, the community of submerged macrophytes shows a shift of growth forms from rosette-like to canopy-forming macrophytes and a further decline due to the increasing shading from [...] Read more.
Submerged macrophytes play an important role in maintaining the structure and function of shallow lakes. Under eutrophication, the community of submerged macrophytes shows a shift of growth forms from rosette-like to canopy-forming macrophytes and a further decline due to the increasing shading from epiphyton and phytoplankton. However, at the early phase of eutrophication, the population of submerged macrophytes may increase due to increased nutrient availability, and the responses of submerged macrophytes to eutrophication are expected to be growth-form dependent. To explore the direct effects of nutrient enrichment on the submerged macrophytes of both growth forms, we constructed a mesocosm study with rosette-like macrophytes (Vallisneria denseserrulata and V. spinulosa) and canopy-forming macrophytes (Potamogeton lucens and P. wrightii) under two nutrient levels but maintained low phytoplankton and epiphyton biomass. Nutrient enrichment had a positive effect on the plant size for both macrophyte growth forms under low algal shading. Based on the 21 plant traits determined, the same growth form responded similarly to the increase in nutrient availability with few exceptions. Interestingly, increased nutrient levels induced different allocation strategies between canopy-forming (especially for ‘magnopotamid’) and rosette-like submerged macrophytes. The increased nutrients promoted leaf growth in rosette-like macrophytes and ramet production in canopy-forming macrophytes. These results provide a case study on the direct effects of increased nutrient levels on submerged macrophytes during the early phase of eutrophication in shallow lakes. Full article
(This article belongs to the Special Issue Biodiversity Conservation of Aquatic Organisms, Especially Aquatic Plants, and Aquatic Ecosystem Health)
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Graphical abstract

17 pages, 4582 KiB  
Article
Characteristics of Carbon Fluxes and Their Environmental Control in Chenhu Wetland, China
by Ya Zhang, Li Liu, Hua Luo, Wei Wang and Peng Li
Water 2024, 16(22), 3169; https://doi.org/10.3390/w16223169 - 6 Nov 2024
Viewed by 834
Abstract
Carbon dioxide (CO2) flux measurements were conducted throughout the year 2022 utilizing the eddy covariance technique in this study to investigate the characteristics of carbon fluxes and their influencing factors in the Chenhu wetland, a representative subtropical lake-marsh wetland located in [...] Read more.
Carbon dioxide (CO2) flux measurements were conducted throughout the year 2022 utilizing the eddy covariance technique in this study to investigate the characteristics of carbon fluxes and their influencing factors in the Chenhu wetland, a representative subtropical lake-marsh wetland located in the middle reaches of the Yangtze River in China. The results revealed that the mean daily variation of CO2 flux during the growing season exhibited a U-shaped pattern, with measurements ranging from −12.42 to 4.28 μmolCO2·m−2·s−1. The Chenhu wetland ecosystem functions as a carbon sink throughout the growing season, subsequently transitioning to a carbon source during the non-growing season, as evidenced by observations made in 2022. The annual CO2 absorption was quantified at 21.20 molCO2·m−2, a figure that is lower than those documented for specific subtropical lake wetlands, such as Dongting Lake and Poyang Lake. However, this measurement aligns closely with the average net ecosystem exchange (NEE) reported for wetlands across Asia. The correlation between daytime CO2 flux and photosynthetically active radiation (PAR) can be accurately represented through rectangular hyperbola equations throughout the growing season. Vapor pressure deficit (VPD) acts as a constraining factor for daytime NEE, with an optimal range established between 0.5 and 1.5 kPa. Furthermore, air temperature (Ta), relative humidity (RH), and vapor pressure difference (VPD) are recognized as the principal determinants affecting NEE during the nocturnal period. The association between Ta and NEE during the non-growing season conforms to the van’t Hoff model, suggesting that NEE increases in response to elevated Ta during this timeframe. Full article
(This article belongs to the Special Issue Biodiversity Conservation of Aquatic Organisms, Especially Aquatic Plants, and Aquatic Ecosystem Health)
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