Transformation of Aquatic Plant Diversity in an Environmentally Sensitive Area, the Lake Taihu Drainage Basin

Huang, Xiaolong; Xu, Xuan; Guan, Baohua; Liu, Shuailing; Xie, Huixiang; Li, Qisheng; Li, Kuanyi

doi:10.3389/fpls.2020.513788

Cited by 15 publications

(7 citation statements)

References 46 publications

(50 reference statements)

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“…A field survey of the distribution of aquatic plants in 2018 revealed that C. caroliniana was a dominant invasive plant in the lower reaches of the Yangtze River (Huang et al, 2020). Prior to our previous investigations, the species was observed to grow well in low sunlight environments, e.g., in areas shaded by bridges, trees and emergent plants where sunlight is partially blocked.…”

Section: Introductionmentioning

confidence: 88%

“…The potential invasive ability and consequences of its invasion have often been overlooked in the downstream Yangtze River Basin, despite the high richness of invasive plants found in this area (Feng & Zhu, 2010). A field survey of the distribution of aquatic plants in 2018 revealed that C. caroliniana was a dominant invasive plant in the lower reaches of the Yangtze River (Huang et al, 2020). Prior to our previous investigations, the species was observed to grow well in low sunlight environments, e.g., in areas shaded by bridges, trees and emergent plants where sunlight is partially blocked.…”

Section: Introductionmentioning

confidence: 99%

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Underwater light attenuation inhibits native submerged plants and facilitates the invasive co‐occurring plant Cabomba caroliniana

Huang

Fan

Lü

et al. 2023

Diversity and Distributions

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Aim Decreasing in the diversity and distribution of native submerged plants have been widely observed in recent decades. Global underwater darkening, which is mainly caused by radiation dimming and a decrease in transparency due to, e.g. eutrophication, has emerged as a general trend that strongly hampers the growth of submerged plants in lakes by decreasing the light available for photosynthesis. However, few studies have attempted to compare the responses of native and invasive submerged plants to underwater darkening. In this study, we aimed to compare the effects of light attenuation on the growth and photosynthesis traits of native and invasive submerged plants. Location East China. Method Through field investigations and a mesocosm experiment, the responses of functional traits of two representative native [water thyme (Hydrilla verticillata), Eurasian watermilfoil (Myriophyllum spicatum)] and one invasive [Carolina fanwort (Cabomba caroliniana)] plant species to various environmental factors, notably to underwater light attenuation, were studied. Results Underwater photosynthetically active radiation (PAR) exerted a substantial effect on the relative coverage and abundance of the three studied submerged plants in their natural freshwater habitats. Invasive C. caroliniana showed relatively superior growth (total biomass and relative growth rate) and photosynthesis traits (maximum quantum yield of photosystem II Fv/Fm, chlorophyll a content, chlorophyll b content and the ratio of Chl a and b contents) compared to the two native plants under low underwater PAR conditions. In contrast, under high underwater PAR conditions, C. caroliniana showed the opposite response. Main Conclusions Light attenuation inhibits the growth of native submerged plants but facilitates the growth of invasive plant species. Restoration of freshwater lakes by reducing deterioration from underwater darkening (for instance, by reducing of external nutrients loading) may therefore constrain the growth and spread of the invasive C. caroliniana.

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Section: Introductionmentioning

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Underwater light attenuation inhibits native submerged plants and facilitates the invasive co‐occurring plant Cabomba caroliniana

Huang

Fan

Lü

et al. 2023

Diversity and Distributions

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“…The Lake Taihu Basin is a sensitive area for biological invasion since it is located in one of the developed areas of the Yangtze River Delta in China. A previous study showed that E. crassipes has become the dominant problematic aquatic invasive species in the waters of the Lake Taihu Basin (Huang et al, 2020 ).…”

Section: Methodsmentioning

confidence: 99%

“…study showed that E. crassipes has become the dominant problematic aquatic invasive species in the waters of the Lake Taihu Basin(Huang et al, 2020).…”

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confidence: 99%

Functional traits underlying performance variations in the overwintering of the cosmopolitan invasive plant water hyacinth (Eichhornia crassipes) under climate warming and water drawdown

Huang

Fan

et al. 2022

Ecology and Evolution

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Reports of the Intergovernmental Panel on Climate Change (IPCC) indicate that temperature rise is still the general trend of the global climate in the 21st century. Invasive species may benefit from the increase in temperature, as climate can be viewed as a resource, and the increase in the available resources favors the invasibility of invasive species. This study aimed to assess the overwintering growth of the cosmopolitan invasive plant water hyacinth ( Eichhornia crassipes ) at its northern boundary. Using E. crassipes as a model plant, a cross‐year mesocosm experiment was conducted to determine 17 plant functional traits, including growth, morphological, root topological, photosynthetic, and stoichiometric traits, under climate warming (ambient, temperature rises of 1.5°C and 3.0°C), and water drawdown or water withdrawal (water depths of 1, 10, and 20 cm) treatments. The overwintering growth of E. crassipes was facilitated by climate warming and proper water drawdown, and climate warming played a leading role. A temperature rises of 3.0°C and a water depth of 10 cm were the most suitable conditions for the overwintering and rooting behavior of the plant. Controlling the temperature to within 1.5°C, an ambitious goal for China, still facilitated the overwintering of E. crassipes . With climate warming, the plant can overwinter successfully, which possibly assists it in producing and spreading new ramets in the vernal flood season. The new rooting behavior induced by ambient low temperature may be viewed as a unique growth adaptation strategy for a niche change, as it helps these plants invade empty niches left by dead free‐floating plants on the water surface following winter freezes. With continued global warming, the distribution of the plant may expand northward, and eradication of the plant during the winter water drawdown period may be a more effective strategy.

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“…There are many lakes in the world, and most freshwater lakes experience varying degrees of eutrophication [ 12 , 13 , 14 ]. Detailed information on the distribution of lakes across the world and China is shown in Figure 1 .…”

Section: Introductionmentioning

confidence: 99%

Role of Lake Aquatic–Terrestrial Ecotones in the Ecological Restoration of Eutrophic Water Bodies

Dai

Zhou³

et al. 2023

Toxics

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Freshwater lake eutrophication is a global concern causing adverse effects on aquatic ecosystems. The degradation of lake aquatic–terrestrial ecotones, which are the transitional zones between terrestrial and water ecosystems, contributes to eutrophication. These ecotones play vital roles in nutrient cycling, runoff control, biodiversity conservation, and habitat provision. In the past three decades, the research on lake aquatic–terrestrial ecotones has focused on techniques for managing contaminants and runoff purification. This paper reviews the recent studies on the restoration ability of eutrophic water bodies in lake aquatic–terrestrial ecotones in recent years regarding three aspects: the establishment, restoration mechanism, and improvement of restoration function. In addition, ecological factors such as lakeshore height, water level, surface runoff, shallow groundwater level, and rainfall intensity have impacts on the restoration capacity of lake aquatic–terrestrial ecotones.

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Transformation of Aquatic Plant Diversity in an Environmentally Sensitive Area, the Lake Taihu Drainage Basin

Cited by 15 publications

References 46 publications

Underwater light attenuation inhibits native submerged plants and facilitates the invasive co‐occurring plant Cabomba caroliniana

Underwater light attenuation inhibits native submerged plants and facilitates the invasive co‐occurring plant Cabomba caroliniana

Functional traits underlying performance variations in the overwintering of the cosmopolitan invasive plant water hyacinth (Eichhornia crassipes) under climate warming and water drawdown

Role of Lake Aquatic–Terrestrial Ecotones in the Ecological Restoration of Eutrophic Water Bodies

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