The Nutrient and Heavy Metal Contents in Water of Tidal Creek of the Yellow River Delta, China: Spatial Variations, Pollution Statuses, and Ecological Risks

Qi, Yue; Zhao, Yi‐Lei; Fu, Gang; Li, Junsheng; Zhao, Caiyun; Guan, Xiao; Zhu, Shuyu

doi:10.3390/w14050713

Cited by 8 publications

(4 citation statements)

References 35 publications

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“…The evolution of the surface water not only directly changed the overall landscape pattern of the Yellow River Delta but also influenced the changes in the other land-use types, thus leading to evolution of the ecosystem service value of the Yellow River Delta. Studies have found that different control schemes for sluices and dams lead to different water depth distributions, resulting in different soil water contents and soil salt contents, affecting the spatial distributions of the nutrients and pollution [57] and forming different vegetation cover types and land-use patterns [58]. Based on the results of this study, the single-factor response of the water evolution is the basis of the overall response of the ecosystem.…”

Section: Discussionmentioning

confidence: 70%

Ecological Effects of Surface Water Evolution in the Yellow River Delta

Huang

Kong

et al. 2022

Sustainability

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With the ecological protection and high-quality development of the Yellow River Basin rising to China’s national strategy, the Yellow River Delta is facing a historic development opportunity, and the surface water problems in this region are becoming more and more severe. Owing to the dual effects of the swing of the Yellow River’s channel and human activities, the surface water in the Yellow River Delta is in an evolving state. Consequently, it is important to pay attention to the ecosystem response caused by surface water evolution for the ecological protection and high-quality development of the Yellow River Delta. Drawing on ecological, economic, and network analysis, in this study, the ecological service and landscape effects of the surface water evolution in the Yellow River Delta from 1986 to 2019 are explored using remote sensing and socioeconomic data. The results are as follows: (1) The surface water in the Yellow River Delta has evolved significantly in the last 35 years. Artificial water accounted for the dominant proportion of the total water, and the composition of water tended to be remarkably heterogeneous. (2) The ecological services of the surface water in the delta increased significantly during the study period. The ecological services of the surface water improved to varying degrees except for sedimentary land reclamation. Tourism, materials production, and water supply became the leading service functions of the surface water in the Yellow River Delta. The proportion of cultural functions rose rapidly, and the share of regulatory functions shrank significantly. (3) The evolution of the surface water had an evident impact on the landscape pattern of the Yellow River Delta, which was manifested as physical cutting and spatial attraction. This demonstrates the comprehensive effect of protective constraints, spatial attraction, and spatial exclusion on the landscape pattern of regional land types. The results of this study have a certain guiding significance for the development and management of the water resources in the Yellow River Delta and also provide information for ecological protection in this region.

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Section: Discussionmentioning

confidence: 70%

Ecological Effects of Surface Water Evolution in the Yellow River Delta

Huang

Kong

et al. 2022

Sustainability

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“…The annual average temperature is between 11.7 and 12.8 • C. The average annual precipitation is about 530~630 mm, of which the summer rainfall accounts for more than half of the year. The rain and heat are in the same period, which is conducive to the growth of plants and crops and can easily cause flood disasters [18,19]. According to the statistics of soil census data, the study area can be divided into five soil types: cinnamon soil, saline soil, fluvo-aquic soil, mortar black soil and paddy soil, among which fluvo-aquic soil and saline soil account for 95% of the total soil area.…”

Section: Study Areamentioning

confidence: 99%

Characteristics, Source and Risk Assessment of Soil Polycyclic Aromatic Hydrocarbons around Oil Wells in the Yellow River Delta, China

Wu,

Zhao,

et al. 2023

Water

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The Yellow River Delta (YRD) is the most complete wetland ecosystem in the warm temperate zone of China and is rich in oil resources. However, with petroleum extraction and the development of the economy, pollution of the YRD has been paid increasing attention, in particular, pollution via polycyclic aromatic hydrocarbons (PAHs), as they have caused great harm to human health and the ecosystem balance. Based on the investigations of a research group in 2009, this study re-collected samples according to the same sampling points and analyzed the concentration, composition, source, ecological risk and health risk of PAHs in 2021. The concentration of ΣPAH16 in the surface soil of YRD in 2009 ranged from 2.6 to 8275.46 ng/g, with an average of 1744.41 ng/g. The concentration of ΣPAH16 in 2021 ranged from 56.25 to 582.56 ng/g, with an average of 149.63 ng/g. Therefore, the pollution situation in the YRD in 2021 was significantly improved compared with 2009. The composition of PAHs in soil in 2009 and 2021 was similar, which was dominated by low-ring PAHs. The evaluation results of the toxicity equivalent factor method showed that there was no potential ecological risk in the soil in 2009 and 2021. The evaluation results of the lifetime cancer risk increment model showed that the incremental lifetime cancer risk models (ILCRs) of soil PAHs in 2009 and 2021 were lower than the safety threshold of 10−6; therefore, there was no carcinogenic risk. The existing management measures for oil wells need to be further promoted to protect the regional ecological environment in the YRD.

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“…Coastal eutrophication and marine contamination from heavy metals have significantly increased worldwide over the past few decades (e.g., [14,15]), causing adverse effects on marine ecosystems. Both disturbances are linked to human activities, including municipal contamination, agricultural activities, and oil discharges into the coastal ocean [14][15][16][17][18][19]. Other factors that have been connected to green tides include alteration of habitat availability by aquaculture and other anthropic activities [11].…”

Section: Introductionmentioning

confidence: 99%

Morphological and Molecular Identification of Ulva spp. (Ulvophyceae; Chlorophyta) from Algarrobo Bay, Chile: Understanding the Composition of Green Tides

Mutizabal-Aros,

Ramírez,

Haye

et al. 2024

Plants

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Green algae blooms of the genus Ulva are occurring globally and are primarily attributed to anthropogenic factors. At Los Tubos beach in Algarrobo Bay along the central Chilean coast, there have been blooms of these algae that persist almost year-round over the past 20 years, leading to environmental, economic, and social issues that affect the local government and communities. The objective of this study was to characterize the species that form these green tides based on a combination of ecological, morpho-anatomical, and molecular information. For this purpose, seasonal surveys of beached algal fronds were conducted between 2021 and 2022. Subsequently, the sampled algae were analyzed morphologically and phylogenetically using the molecular markers ITS1 and tufA, allowing for the identification of at least five taxa. Of these five taxa, three (U. stenophylloides, U. uncialis, U. australis) have laminar, foliose, and distromatic morphology, while the other two (U. compressa, U. aragoensis) have tubular, filamentous, and monostromatic fronds. Intertidal surveys showed that U. stenophylloides showed the highest relative coverage throughout the seasons and all intertidal levels, followed by U. uncialis. Therefore, we can establish that the green tides on the coast of Algarrobo in Chile are multispecific, with differences in relative abundance during different seasons and across the intertidal zone, opening opportunities for diverse future studies, ranging from ecology to algal biotechnology.

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The Nutrient and Heavy Metal Contents in Water of Tidal Creek of the Yellow River Delta, China: Spatial Variations, Pollution Statuses, and Ecological Risks

Cited by 8 publications

References 35 publications

Ecological Effects of Surface Water Evolution in the Yellow River Delta

Ecological Effects of Surface Water Evolution in the Yellow River Delta

Characteristics, Source and Risk Assessment of Soil Polycyclic Aromatic Hydrocarbons around Oil Wells in the Yellow River Delta, China

Morphological and Molecular Identification of Ulva spp. (Ulvophyceae; Chlorophyta) from Algarrobo Bay, Chile: Understanding the Composition of Green Tides

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