Article
Environmental Sciences
Jose Marrugo-Negrete, Jose Pinedo-Hernandez, Siday Marrugo-Madrid, Sergi Diez
Summary: The study revealed severe trace element pollution in the San Jorge River in Colombia, with high ecological risks associated with mining activities. Various pollution indices indicated environmental deterioration and adverse biological effects caused by copper, lead, nickel, zinc, and mercury contamination from mining activities. Multiyear discharges of hazardous chemicals have led to high pollution levels for copper, lead, and cadmium in the river.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Ayong Jiao, Wenqi Wang, Hongbo Ling, Xiaoya Deng, Junjie Yan, Fulong Chen
Summary: This paper selects the Tarim River Basin as a case study to analyze the impact of ecological water conveyance on desert riparian vegetation and hydrological elements. It constructs an ecological environment quality evaluation system and comprehensively evaluates the effect of ecological water conveyance on the damaged desert forest ecosystem. The research shows that ecological water conveyance has played a positive role in groundwater recharge and ecological restoration, providing important scientific reference for the protection and restoration of vegetation degradation in arid watersheds.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Environmental Studies
Helene Mueller, Stephan Hoerbinger, Fabian Franta, Ana Mendes, Jianhua Li, Ping Cao, Baiyin Baoligao, Fengran Xu, Hans Peter Rauch
Summary: In this study, the hydromorphological status of the Nanxi river system in Eastern China was assessed using an adapted application of the MQI method. The results showed that the hydromorphological status of the river system was poor, indicating the need for restoration and management planning.
Article
Biodiversity Conservation
Xuhao Wan, Tao Yang, Qian Zhang, Wei Wang, Yiyan Wang
Summary: The ecological status of the Wei River Basin in China is of great concern, and this study assessed the integrity of plankton using P-IBI as a tool. The results showed that the physical and chemical factors play a significant role in influencing the integrity of plankton, with the upper and lower reaches of the main stream having better water quality than the middle reaches.
ECOLOGICAL INDICATORS
(2021)
Article
Biodiversity Conservation
Zhenni Wu, Jantiene E. M. Baartman, Joao Pedro Nunes, Manuel Lopez-Vicente
Summary: Hydrological and sediment dynamics on the Chinese Loess Plateau have undergone significant changes over the past six decades, primarily due to large-scale land use changes and water regulation actions. Understanding the mechanism of sediment transport change and its effects is crucial for ensuring food and environmental security. This study utilizes the aggregated index of sediment connectivity (AIC) to evaluate the monthly and annual sediment connectivity in the Wei River Basin at both the basin and sub-basin scales. The results show that AIC has a positive correlation with sediment yield in the Wei and Jing sub-basins, with the Jing sub-basin having the highest sediment connectivity and the Beiluo sub-basin having the lowest. Additionally, rainfall is found to be the most influential factor on sediment connectivity. This study provides valuable insights for regional ecological construction and environmental catchment management.
ECOLOGICAL INDICATORS
(2023)
Article
Environmental Sciences
Jing Liu
Summary: This study identified the critical factors causing river quality deterioration and evaluated the aquatic biodiversity in the Wanyu River. The government's efforts in building sewage treatment plants and implementing restoration measures have led to improvements in the river environment. However, agricultural pollution, internal nutrient loading, and cost-effective restoration and evaluation remain significant challenges.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Biodiversity Conservation
Xi Weng, Cuiling Jiang, Menglin Yuan, Manxue Zhang, Tianshan Zeng, Chun Jin
Summary: The construction of estuary sluice has significant negative impacts on the ecological environment, which can be mitigated by an ecologically oriented multi-sluice system operation strategy to meet the diverse environmental flow requirements of different fish species. By predicting effective habitat through modeling and adjusting river discharges, the study aims to maintain the needs of fish for spawning and migration.
ECOLOGICAL INDICATORS
(2021)
Article
Environmental Studies
Junyi Su, Renfei Zhang, Minghao Wu, Ruiying Yang, Zhicheng Liu, Xiaoming Xu
Summary: In this study, the changes in landscape patterns and habitat quality in the Yongding River floodplain from 1967 to 2018 were evaluated. The results showed that the landscape pattern was dominated by arable land and forestland while construction land expanded. The landscape tended to fragmentation and complexity increased. Habitat quality was generally above medium level, but low-quality areas increased. There was a strong correlation between habitat quality and the Aggregation Index, Diversity Index, and water and forestland area.
Article
Biodiversity Conservation
Han Zhu, Yu-Zhou Zhang, Yong-Chao Peng, Bao-Chun Shi, Ting Liu, Han-Bing Dong, Yan Wang, Yi-Chen Ren, Yi-Long Xi
Summary: Biological integrity refers to the capacity of a region to sustain a healthy ecosystem comprising multiple biological communities. This study evaluated the ecological health of the Qingyi River Basin using three indexes of biotic integrity (IBIs) and found that the health of the system was good or moderate. The IBIs showed greater sensitivity than the water quality index for detecting environmental damage, with the benthos index being the most sensitive.
ECOLOGICAL INDICATORS
(2023)
Article
Plant Sciences
Yiran Li, Sijia Hu, Shanxin Lang, Yulin Pu, Shirong Zhang, Ting Li, Xiaoxun Xu, Yongxia Jia, Guiyin Wang, Dagang Yuan, Yun Li
Summary: This study investigates the comprehensive effects of soil and vegetation properties on the restoration of desertified grassland. The results show that the restoration measures significantly improve soil quality and ecological benefits. The enclosure plus sand-barrier and shrub-grass restoration pattern is the most effective, particularly after 5 years of restoration.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Environmental Sciences
Musharraf Ali Khan, Nawaz Khan, Anees Ahmad, Rakesh Kumar, Anuradha Singh, Deepshi Chaurasia, Suvadip Neogi, Vinod Kumar, Preeti Chaturvedi Bhargava
Summary: This study evaluates the impact of human induced activities on groundwater quality in the Agra-Firozabad industrial belts of Western Uttar Pradesh, Yamuna basin, India. The study finds that the groundwater contains high concentrations of metals and anions, making it unsuitable for industrial use but suitable for agricultural use. Health risk assessment studies show that children consuming this polluted water are more affected than adults. Timely action and strict compliance of regulations are recommended for groundwater management to prevent severe health effects and achieve sustainable development goals.
Article
Environmental Sciences
Abuzer celekli, Omer Lekesiz, Tolga cetin
Summary: The study aimed to assess the diatom-stressor relationship in relatively least disturbed streams in the Konya closed river basin and evaluate streams using different ecoregional diatom indices. Cocconeis euglypta, Cymbella excisa, Cocconeis placentula, and Achnanthidium minutissimum were found to be the most contributing species to the dissimilarity between seasons and altitude groups. Canonical correspondence analysis showed a significant relationship between diatom species and stressors. Diatom indices indicated different ecological statuses of stations, with European diatom indices performing well in the eco-assessment of streams.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Green & Sustainable Science & Technology
Chunsheng Wu, Guoxia Ma, Weishan Yang, Ying Zhou, Fei Peng, Jinnan Wang, Fang Yu
Summary: The Yellow River Basin and the Yangtze River Basin are two important watersheds in China with different ecosystem patterns. The ecosystem services values of the two basins have similar spatial distributions, with the Yangtze River Basin having a total annual value three times higher than that of the Yellow River Basin. This research provides a methodology for evaluating ecosystem valuation and can support the formulation and implementation of eco-compensation policies in these regions.
Article
Biodiversity Conservation
Xiaoyuan Zhang, Kai Liu, Shudong Wang, Taixia Wu, Xueke Li, Jinnian Wang, Dacheng Wang, Haitao Zhu, Chang Tan, Yuhe Ji
Summary: This study investigates the ecological vulnerability in the Yellow River Basin during different policy periods using an evaluation index system based on exposure-sensitivity-adaptability framework and earth observation data. The results show a decreasing trend in overall ecological vulnerability levels from 2001 to 2019, despite a slight increase in 2015 due to dry climate conditions. The study also finds geographical spatial variation in vulnerability levels, with the northern areas in the upper reaches being the most vulnerable. Ecological restoration policies have had a positive impact on improving ecological vulnerability. The findings provide guidance for ecological restoration in the Yellow River Basin and have potential applicability in assessing ecological vulnerability in other regions.
ECOLOGICAL INDICATORS
(2022)
Article
Environmental Sciences
Jitao Lan, Zonggang Chai, Xianglong Tang, Xi Wang
Summary: Watershed ecosystems are crucial for the sustainable development of a region. Understanding the characteristics of land-use change and the factors affecting it is vital for the construction of a high-quality watershed ecology. This study analyzed the land-use data from 2000 to 2020 in the Zhangye area of the Heihe River Basin using landscape indices, the landscape ecological risk index (ERI) model, and geodetector tools. The findings reveal the ecological risk evolution and driving forces influencing ecological risk differentiation.
Article
Biodiversity Conservation
Shuo Wang, Qian Zhang, Tao Yang, Liqi Zhang, Xiaoping Li, Jia Chen
ECOLOGICAL INDICATORS
(2019)
Article
Engineering, Environmental
Tong Liu, Xin Qian, Shuo Wang, Hui Wang, Si Wei, Hong Chen
Summary: Water diversion projects are increasingly used for various purposes globally, but the transport of micropollutants like PFAAs during water diversion and flood discharge can have negative impacts on receiving water bodies. The sources, spatiotemporal variations, and fluxes of PFAAs in dual-source water diversion projects remain unclear, highlighting the need for further research in this area.
Article
Engineering, Environmental
Shuo Wang, Tong Liu, Xin Qian, Hui Wang, Mingjia Li, Xuebing Wang, Si Wei, Hong Chen
Summary: This study investigated the pollution of perfluoroalkyl acid (PFAA) in water bodies near the largest perfluorinated industrial park in Asia and its impact on microbial plankton communities. The results showed that PFAAs had a potentially negative impact on the microbial plankton community in the natural environment, especially in poor water quality conditions. This study provides new directions for the investigation of PFAA pollution in freshwater environments.
JOURNAL OF HAZARDOUS MATERIALS
(2023)