Natural and human activities driving the spatiotemporal variability of water clarity in lakes across Eastern China

Shen, Ming; Cao, Zhigang; Xue, Kun; Liu, Dong; Qi, Tianci; Ma, Jinge; Hongtao, Duan

doi:10.1016/j.jag.2022.103037

Cited by 5 publications

(1 citation statement)

References 58 publications

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“…As a result of global changes, more frequent flooding has occurred in China, resulting in decreasing levels of underwater photosynthetically active radiation (PAR) and increasing levels of water turbidity in freshwater ecosystems (Wu & Ding, 2019). Both the annual average available PAR and the transparency of lakes in China have generally shown a clear decreasing trend in the past few decades, being particularly apparent for lakes in East China, which have experienced more significant declines due mainly to the high levels of water and air pollution (Shen et al, 2022;Zhang et al, 2020). This underwater darkening has many adverse effects: it may significantly reduce species abundances, disrupt food chains and change the energy flows and material circulation paths of freshwater ecosystems (Zhang et al, 2020(Zhang et al, , 2022.…”

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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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: 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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Ecological effects of land use and land cover changes on lakes in urban environments

Krishnan,

Shanthi Priya,

Senthil

2024

Sustainable Development

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Urban lakes confront significant threats due to changes in land use and land cover (LULC) resulting from urbanization and subsequent climate change. This review discusses the intricate effects of the urban heat island phenomenon on lakes, specifically attributed to LULC changes. Utilizing the Scopus and Web of Science databases, this study gathers the most pertinent earlier research in the LULC and water bodies. This study systematically categorizes variables into five distinct groups and scrutinizes the drivers, parameters, tools, and management strategies influencing the LULC dynamics on lakes. A research gap is identified in understanding the conjoined impacts of LULC and urban heat island effects within urban lake environments. The review further investigates diverse ways in which LULC impacts lakes, intersecting with multiple United Nations sustainable development goals (SDGs), notably SDGs 6, 11, 13, and 15. Consequently, this review serves as a valuable contribution to the understanding of LULC to provide substantial benefits to the urban climate research toward meeting SDGs.

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Random forest: An optimal chlorophyll-a algorithm for optically complex inland water suffering atmospheric correction uncertainties

Shen

Luo

Cao

et al. 2022

Journal of Hydrology

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Natural and human activities driving the spatiotemporal variability of water clarity in lakes across Eastern China

Cited by 5 publications

References 58 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

Ecological effects of land use and land cover changes on lakes in urban environments

Random forest: An optimal chlorophyll-a algorithm for optically complex inland water suffering atmospheric correction uncertainties

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