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61,005 resultsShowing papers similar to Spatiotemporal Differences in Marine Environment Quality in China and the Influencing Factors
ClearAnalyzing efficiency measurement and influencing factors of China’s marine green economy: Based on a two-stage network DEA model
This study measured marine green economy efficiency across Chinese coastal provinces from 2006 to 2018 using a two-stage network data envelopment analysis model, finding that production efficiency generally improved while ecological efficiency remained lower, and identifying economic development level as a key influencing factor.
The Driving Effect of Marine Industry on Marine Pollution: An Empirical Study from China
Researchers empirically examined the relationship between major marine industries and marine pollution levels in China, using national seawater quality classification data from the Ministry of Ecology and Environment. They found that marine industry activity has a measurable driving effect on marine environmental degradation, with different industries contributing distinct pollution impacts.
Impact of microplastic pollution on coastal ecosystems using comprehensive beach quality indices
This study applied three beach quality indices to assess microplastic pollution in Chinese beach sediments, finding that all sampled beaches rated "very high" pollution and "bad" environmental status. The work provides a standardized framework for quantifying microplastic impact on beach environments, which is useful for guiding cleanup priorities and policy decisions.
Conditions of Mainland China’s Island Ecosystems and Associated Influencing Factors: Integrated Assessment of 42 Typical Island Ecosystems
Researchers assessed the ecological condition of 42 representative islands along China's coast using a framework integrating environmental quality, biological structure, and landscape patterns, finding that island ecosystem health varied significantly by size, location, and human land use intensity.
Machine learning models for forecasting microplastic dynamics in China’s coastal waters
Researchers used machine learning to analyze microplastic pollution patterns across China's four major coastal seas, drawing on over 1,100 data points from peer-reviewed studies. They found that urban centers and industrial activities are key drivers of contamination, with pollution levels varying significantly between marine, coastal, and estuary environments. The models project that economic development and education could reduce microplastic concentrations, while industrial expansion may increase them.
A Comprehensive Method for Water Environment Assessment considering Trends of Water Quality
Researchers developed a comprehensive water quality assessment method that accounts for both current pollution levels and trends over time, applying it to rivers feeding a major Chinese reservoir. Water quality assessment frameworks are increasingly being adapted to include microplastic contamination as a standard monitoring parameter.
Characteristics and patterns of marine debris in the Chinese beach-sea continuum
Researchers analyzed a 10-year time-series dataset (2012-2021) of marine debris from Chinese beaches and adjacent seas to examine characteristics of debris distribution across the beach-sea continuum. The study investigated the quantitative relationships between debris density and accumulation patterns in coastal and marine zones, finding that floating debris is transported bidirectionally between sea and coast through various oceanographic and meteorological processes.
Spatiotemporal variations of microplastics and influencing factor analysis in coastal seawater of Qingdao, China
Researchers surveyed microplastic pollution in the coastal waters of Qingdao, China, and found average concentrations of 293 to 412 particles per cubic meter, with higher levels in summer. The distribution pattern showed increasing concentrations from east to west, influenced by ocean currents, urban runoff, and tourism activity. The study provides a detailed picture of how human activity and environmental factors shape microplastic pollution patterns along a major coastal city.
Contaminant Characteristics and Influencing Factors of Heavy Metals in Seawater and Sediments in a Typical Mariculture Bay in South China
Researchers assessed heavy metal contamination in seawater and sediments of Qinzhou Bay, a major mariculture area in South China, finding seasonal variations in metal concentrations influenced by river input, aquaculture activities, and hydrodynamic conditions.
Evaluation of the Spatiotemporal Change of Ecological Quality under the Context of Urban Expansion—A Case Study of Typical Urban Agglomerations in China
Researchers tracked changes in ecological quality across three major urban areas in China over two decades of rapid urbanization. They found that urban expansion significantly reduced ecological quality in surrounding areas, with the most severe impacts occurring in newly developed zones. The study provides a framework for monitoring how urbanization affects local ecosystems using remote sensing data.
China's marine environmental public interest litigation: current situation, challenges, and improvement approach –analysis based on 339 cases
This study analyzed 339 marine environmental public interest litigation cases in China, examining current challenges and potential improvements in how the legal system addresses marine pollution and ecological damage. Researchers found that while the legal framework is developing, inconsistencies in case handling and enforcement remain significant barriers to effective ocean environmental protection.
Policy impact on microplastic reduction in China: Observation and prediction using statistical model in an intensive mariculture bay
Researchers applied decision tree classification and Bayesian Structural Time Series modelling to 26 surface sediment samples and a sediment core from Sansha Bay, China, finding that policy interventions may reduce microplastic abundance in this intensive mariculture area while also predicting near-future microplastic trends.
Analysis of the Current Situation of Marine Garbage and Microplastic Pollution in Typical Coastal Areas of Qingdao
Researchers investigated coastal marine debris and microplastic pollution at two beaches in Qingdao, China, examining the types, sources, components, and spatiotemporal distribution through field surveys, sample analysis, and component identification. The study proposed management responses including strengthened public education, stricter monitoring measures, and promotion of technological innovation and international cooperation.
Spatial heterogeneity of microplastics and ecological risk assessment based on detection of seawater and fish in typical coastal region in Hainan
Spatial heterogeneity in microplastic concentrations across a study area was documented and linked to ecological risk, with hotspots identified near point sources and areas of low water flow. The risk assessment framework developed here can help prioritize sites for remediation or regulatory attention.
China’s Marine Environmental Protection Strategy in the Background of the COVID-19 Pandemic: Progress, Challenges, and Outlook
This review examines China's marine environmental protection strategy, tracing its development and analyzing how the COVID-19 pandemic affected marine pollution management. The pandemic both increased plastic waste (from masks and PPE) and disrupted environmental enforcement, creating new challenges for China's marine conservation efforts.
Microplastic pollution in Chinese bays: Sampling method comparisons, key drivers, and economic influence
Researchers compiled microplastic data from over 300 sampling stations across 13 bays in China and compared three different water sampling methods. They found that microplastic distribution was heterogeneous across bays and that sampling method significantly affected measured abundance, though not the types of polymers detected. The study also found a positive correlation between regional economic development and microplastic pollution levels, suggesting that human activity intensity is a key driver of coastal contamination.
Spatiotemporal variations, source apportionment, and cross-regional impacts of microplastics in surface seawater of Chinese Marginal Seas
Researchers analyzed spatiotemporal patterns of microplastic pollution across China's marginal seas from 2016 to 2022, finding that the Bohai Sea had the highest contamination levels in both rainy and dry seasons. The Yangtze River Estuary, Pearl River Estuary, and Bohai Bay were identified as major hotspot regions contributing to surrounding marine pollution. Source analysis revealed that industrial manufacturing and plastic packaging were the primary contributors, with polyethylene and polypropylene dominating the composition.
Changes in Sources and Composition of Beach Waste in Coastal Cities around the Bohai Sea of China during the Tourist Peak and Off-Peak Seasons
Researchers surveyed beach waste across twenty beaches in thirteen cities around China's Bohai Sea during tourist peak and off-peak seasons, finding large quantities of plastic-dominated waste with significant seasonal variation linked to tourism and local activities.
Measurement and temporal and spatial characteristics of agricultural eco-efficiency under climate change: a case study of Anhui, China
Researchers applied super-efficient DEA-SBM analysis to measure agricultural eco-efficiency across Anhui Province, China, quantifying non-point source pollution from livestock breeding and chemical fertilizers. They found that eco-efficiency followed an 'inverted N' trend over time and exhibited spatial agglomeration patterns, with significant north-south regional differences driven by climate change and the 'Matthew effect.'
Nationwide meta-analysis of microplastic distribution and risk assessment in China's aquatic ecosystems, soils, and sediments
A nationwide meta-analysis of 7,766 sampling sites across China found that microplastic distribution is influenced by economic development, population density, and geography, with generally higher concentrations in prosperous areas. The pollution varies significantly across water, soil, and sediment compartments, highlighting the need for AI-based regulatory frameworks to manage standardized risk assessment.
Spatial Patterns of Microplastics in Surface Seawater, Sediment, and Sand Along Qingdao Coastal Environment
This study examined microplastic distribution across seawater, sediment, and beach sand at 10 zones around Qingdao, China, finding concentration patterns strongly associated with the type of human activity at each site. Abandoned aquafarms and harbors showed the highest contamination, and chlorinated polyethylene fragments dominated all environmental compartments.
Towards an urban marine ecology: characterizing the drivers, patterns and processes of marine ecosystems in coastal cities
Researchers reviewed the emerging field of urban marine ecology, examining how coastal cities transform nearby marine environments through resource exploitation, pollution, and construction of artificial structures. They found that urban marine ecosystems are characterized by spatially heterogeneous pollution patterns and biotic homogenization over time. The study calls for an integrated framework to better understand and manage the unique ecological dynamics of marine environments adjacent to major cities.
Characteristics and Influencing Factors of Spatial Differentiation of Urban Black and Odorous Waters in China
This Chinese study analyzed the geographic distribution of urban black and odorous water bodies — severely polluted urban waterways — and the factors driving their spatial patterns. Urban waterways are major pathways for microplastics from cities to receiving water bodies and coastal zones.
Microplastic Distribution and Influence Factor Analysis of Seawater and Surface Sediments in a Typical Bay With Diverse Functional Areas: A Case Study in Xincun Lagoon, China
Researchers assessed microplastic distribution in Xincun Lagoon in China, finding that different human activities such as tourism, fishing, and aquaculture directly influenced the type and level of microplastic pollution in seawater and sediments.