The inter-provincial panel data of China’s Yangtze River Delta from 2011 to 2020 were utilised, and quantitative analysis was conducted on the pollution- and carbon-reduction subsystem of the Yangtze River Delta on the basis of the composite-system co-ordinated-degree model, evaluating the order degree, internal co-ordinated degree, and composite-system co-ordinated degree, according to which we came to the relevant conclusions.

This article belongs to the collection: Ecological monitoring and assessment of freshwater ecosystems: new trends and future challenges.

Algal bloom is a global public environmental issue. Lakes and reservoirs are prone to algal blooms because of their relatively static water flow. In the drinking-water source reservoir with low concentrations of nitrogen and phosphorus, there will still be seasonal algal outbreaks, in which light intensity and temperature are important factors affecting algal growth.

This article belongs to the collection: Ecological monitoring and assessment of freshwater ecosystems: new trends and future challenges.

Exploring trends in rainfall across the middle and lower Yangtze River Basin from 1961 to 2022, this study showed a shift from reduced fluctuations to increased precipitation c. 2011, becoming notably pronounced after 2017. Utilising ARIMA models and expert techniques, it forecast future trends, aiding flood management and climate adaptation strategies, with implications for advanced climate modelling and data analytics.

This article belongs to the collection Ecological monitoring and assessment of freshwater ecosystems: new trends and future challenges.

This study introduces a new model for evaluating urban water management, blending social, economic and environmental factors. The model helps cities better assess and manage their water resources, promoting sustainability and economic progress. By improving water-saving strategies and addressing urban water challenges, the research offers valuable insights for policymakers aiming for sustainable urban development.

This article belongs to the collection Ecological Monitoring and Assessment of Freshwater Ecosystems: New Trends and Future Challenges.

Lake tourism-optimisation water-conservancy projects are indeed conducive to creating a safe leisure and tourism environment, thereby enhancing human interaction, historical monument protection and local visibility. However, problems such as shortage of basic public facilities and excessive tourism waste will still affect people’s perception of the local environment and willingness to consume.

This article belongs to the collection Ecological Monitoring and Assessment of Freshwater Ecosystems: New Trends and Future Challenges.

This investigation showed degraded wetland biodiversity near urbanising Hangzhou, with habitat loss to development, water pollution and invasive species. Strategic planning integrating ecological restoration and sustainable development is urgently needed to conserve these ecosystems critical for wildlife and human communities.

This article belongs to the collection Ecological monitoring and assessment of freshwater ecosystems: new trends and future challenges.

Freshwater-quality prediction is crucial for monitoring pollution risks and assessing changes in freshwater ecosystems. Whereas Kriging is a precise interpolation method for predicting freshwater quality, selecting key parameters, regression functions and correlation functions remains challenging. Therefore, this study proposed an adaptive weighted-average Kriging (AWAK) method that outperforms traditional Kriging in predicting pH and dissolved oxygen, reducing prediction errors significantly. Overall, AWAK improved freshwater-quality prediction and provided an effective approach in freshwater-ecology research.

This article belongs to the collection Ecological Monitoring and Assessment of Freshwater Ecosystems.

The association of fish larvae and juveniles with aquatic macrophytes was investigated in a cascade of small hydroelectric power plants. We collected 29 taxa and used macrophyte banks for their initial development. We demonstrated that these habitats are important for the conservation and management of the local fish fauna, mainly because of the absence of typical nursery areas (tributary mouths, marginal lagoons).

This article belongs to the collection: Ecological monitoring and assessment of freshwater ecosystems: new trends and future challenges.

In this study, a multifactor and multilayer comprehensive early risk-warning method was established to improve the timeliness and accuracy of risk warning for nuclear power plant operation under the stress of Phaeocystis globosa blooms.

This article belongs to the collection Ecological Monitoring and Assessment of Freshwater Ecosystems.

Eutrophication pollution has become an important ecological problem in the world. This paper mainly analyses the current water quality of a reservoir, and on this basis, conducts an in-depth investigation and calculation of the reservoir pollution sources, evaluates the current degree of eutrophication pollution of the reservoir, and provides reference for the effective management and management of the subsequent reservoir.

This article belongs to the collection Ecological monitoring and assessment of freshwater ecosystems: new trends and future challenges.

The seawater quality in the Dongji Island yellow croaker aquaculture area in Zhoushan, China, was assessed by the fuzzy comprehensive evaluation method. Seawater quality was better in 2019 than in 2020, with overall water quality classified as Class I in both years. However, there were variations in water quality among individual months in 2020. The fuzzy comprehensive evaluation method can be used in other regions to assess and manage seawater quality in aquaculture areas effectively.

This article belongs to the collection Ecological Monitoring and Assessment of Freshwater Ecosystems.

On the basis of research data from nine provinces in the Yellow River Basin, this study explored the incentives of water-rights confirmation in agriculture and its transmission mechanism for water conservation among farmers. The research findings indicated that water-rights confirmation in agriculture influences farmers’ willingness to conserve water and the amount of investment in water conservation.

This article belongs to the collection Ecological Monitoring and Assessment of Freshwater Ecosystems: New Trends and Future Challenges.

Mahseer fish, listed as Data Deficient with a decreasing population trend in The IUCN Red List, is valuable. Scientometric studies evaluate research efficacy. This study assessed mahseer research in Asia by using scientometric analysis. Analysis from Web of Science database showed a slight upward trend. Scientific publications on mahseer exhibited a significant increase. Research in Asia has potential for future scientific endeavours. The findings highlighted the importance of understanding research trends to inform conservation efforts for mahseer species in Asia.

This article belongs to the collection Ecological Monitoring and Assessment of Freshwater Ecosystems: new trends and future challenges.

On the basis of the RUSLE model in LIR basin, key findings indicated varying degrees of soil erosion, with a significant portion experiencing severe erosion. The research also addressed the quantification of errors or uncertainties in remote-sensing data, particularly highlighting differences in delineation accuracy among Landsat 5, 7 and 8. The outcomes are essential for watershed management, offering insights into critical erosion sites and aiding in the development of conservation strategies.

This article belongs to the collection Ecological monitoring and assessment of freshwater ecosystems: new trends and future challenges.

Land use–cover change affects habitat quality and sustainable growth. This study predicted 2030 land-use scenarios with the PLUS model and assessed habitat quality from 2010 to 2030 with InVEST in the Greater Bay Area around Hangzhou Bay. Limiting construction, protecting farmland and expanding green spaces are essential for improving habitat quality. Findings have provided insights for sustainable growth.

This article belongs to the collection Ecological Monitoring and Assessment of Freshwater Ecosystems: New Trends and Future Challenges.