Article
Ecology
Wenwen Liu, Steven C. Pennings
Summary: This study explored the importance of plant species and different habitat conditions to synchrony in plant productivity across coastal marsh habitats in Georgia, USA. Synchrony was highest within a plant species and within a marsh zone, and decreased across species with increasing distance and elevational differences. Abiotic conditions, such as water column temperature and salinity, also showed high synchrony among sites, pointing to the Moran effect as a likely explanation for the findings.
Article
Biodiversity Conservation
Caroline R. Narron, Jessica L. O'Connell, Deepak R. Mishra, David L. Cotten, Peter A. Hawman, Lishen Mao
Summary: Remote sensing is crucial for understanding coastal wetland ecosystems, but tidal inundation affects the reliability of remote sensing-based models. To address this issue, we developed the Flats index to identify and filter flooded pixels. We also demonstrated innovative applications of the index in detecting flooding frequency and patterns.
ECOLOGICAL INDICATORS
(2022)
Article
Environmental Sciences
Zhonghua Ning, Dongxue Li, Cong Chen, Chengjie Xie, Guogui Chen, Tian Xie, Qing Wang, Junhong Bai, Baoshan Cui
Summary: Understanding the dynamics and pathways of invasive plants in relation to geomorphic landscape features is crucial for predicting and managing their expansion in non-native habitats. In this study, the evolutionary patterns of tidal channel networks in the Yellow River Delta were quantified using remote-sensing imagery, and the invasion patterns of Spartina alterniflora were identified. The study also revealed the influence of tidal channel characteristics on the plant's invasion dynamics.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Ecology
Sara Martin, Nigel Temple, Gillian Palino, Just Cebrian, Eric Sparks
Summary: The study found that large-scale breakwaters are effective in maintaining high coverage of natural marshes, but have minimal impact on shoreline plant growth. Breakwaters reduce pressure for upland migration, allowing marsh patches to expand seaward. The presence of breakwaters can help preserve fringing marsh vegetation in high wave energy environments, but adaptive management may be necessary for future effectiveness in response to sea-level rise.
ECOLOGICAL ENGINEERING
(2021)
Article
Environmental Sciences
Niu Li, Ming Nie, Bo Li, Jihua Wu, Jiayuan Zhao
Summary: Aboveground litter inputs from plants play a crucial role in carbon and nutrient fluxes to the soil. This study compared the effects of aboveground litter from native Phragmites australis and exotic Spartina alterniflora on soil nitrification and denitrification, finding species-specific impacts on these processes, particularly more pronounced in the late growth phase. The study also showed that while previous research has highlighted the strong impacts of invasive Spartina alterniflora on nitrogen removal processes, the aboveground litter from this species did not significantly alter nitrification or denitrification, suggesting the presence of other important pathways in these processes.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Biochemistry & Molecular Biology
Guangliang Zhang, Junhong Bai, Christoph C. Tebbe, Laibin Huang, Jia Jia, Wei Wang, Xin Wang, Lu Yu, Qingqing Zhao
Summary: This study investigates the effects of plant invasions on soil microbial communities and functions in salt marshes. It finds that microbial diversity is positively correlated with the duration of invasion, and both bacterial and fungal communities show consistent changes with invasion. The metabolic potential of soil microbes decreases in response to invasion, leading to carbon accumulation in invaded salt marshes. Bacteria and fungi have distinct contributions to microbial community assembly along the invasion gradient.
Article
Limnology
Zhenchang Zhu, Aimee Slangen, Qin Zhu, Theo Gerkema, Tjeerd J. Bouma, Zhifeng Yang
Summary: This study investigates the impacts of tidal and wind changes on seed arrival and retention in salt marshes, essential for marsh regeneration. Results show that spring tides are more effective in seed dispersal than neap tides, and storm-induced extreme water levels deliver higher amounts of viable seeds. Seed retention decreases with increasing onshore wind speed, with storm-induced wave disturbance wiping out seeds on wind-exposed marshes.
LIMNOLOGY AND OCEANOGRAPHY
(2022)
Article
Environmental Sciences
Tian Xie, Qing Wang, Zhonghua Ning, Cong Chen, Baoshan Cui, Junhong Bai, Wei Shi, Bo Pang
Summary: The invasibility of an ecosystem measures its resistance to plant invasion, with human activities playing a key role in altering lateral hydrological connectivity and potentially making the ecosystem more susceptible to invasion.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Engineering, Environmental
Xiaoting Zhang, Lujian Lin, Hanyi Li, Shanle Liu, Shuai Tang, Bo Yuan, Hualong Hong, Manlin Su, Jingchun Liu, Chongling Yan, Haoliang Lu
Summary: This study investigated the characteristics and formation mechanism of iron plaques on plastic surfaces in coastal wetlands, as well as their relationship with environmental factors and microbes. The results showed that iron plaques increased the adhesive force and promoted the oxidation of plastic surfaces. Salinity, anaerobic conditions, natural organic matter, and weak alkaline scenarios were found to stimulate the formation of iron plaques. The iron content was positively correlated with the loading of heavy metals. Nitrospirae was identified as a positive regulator of iron plaque, while Verrucomicrobia and Kir-itimatiellaeota may act as depressants by consuming salt.
JOURNAL OF HAZARDOUS MATERIALS
(2024)
Article
Biodiversity Conservation
Yuting Huang, Zhuo Liu, Guanghui Zheng, Chengyi Zhao
Summary: Spartina alterniflora, introduced into China in the 1980s, has had significant negative impacts on coastal wetlands by encroaching on native plant communities' habitat. The habitat of S. alterniflora expanded while the habitat of Suaeda salsa continuously fragmented. Habitat fragmentation and competition between S. alterniflora and Phragmites australis intensified, aggravating the reduction and fragmentation of S. salsa's habitat and threatening biodiversity and ecosystem stability.
ECOLOGICAL INDICATORS
(2022)
Article
Ecology
Shuying Qiu, Zhenyu Wang, Jiali Xu, Erqian Cui, Liming Yan
Summary: Coastal wetland ecosystems, such as saltmarshes, are effective in sequestering carbon to mitigate climate change. The effects of vegetation dynamics, specifically the invasive Spartina alterniflora and native Phragmites australis communities, on soil organic carbon (SOC) and its fractions were examined. The study found that plant ecophysiological traits influence the spatial distribution of SOC, and the different vegetation communities have different impacts on its accumulation and decomposition. These findings provide insights into the impacts of long-term species invasion on SOC in coastal wetlands under global changes.
ECOSYSTEM HEALTH AND SUSTAINABILITY
(2023)
Article
Remote Sensing
Zhanpeng Wang, Yinghai Ke, Mengmeng Chen, Demin Zhou, Lin Zhu, Junhong Bai
Summary: Annual mapping of the Yellow River Delta wetland from 2008 to 2019 using time-series Landsat images revealed a significant expansion of Spartina alterniflora, encroaching on other vegetation types. The study found that the number of valid observations affects spatial and temporal classification accuracies, with harmonic regression features playing a crucial role in improving overall accuracies. Temporal distribution of observations was identified as more important than the quantity of observations for harmonic-based classification of coastal wetlands like the YRD.
INTERNATIONAL JOURNAL OF REMOTE SENSING
(2021)
Article
Biodiversity Conservation
Yong Zhou, Chunqi Qiu, Yufeng Li, Cheng Wang, Yinglei Zhang, Wanchun Huang, Lin Li, Hongyu Liu, Dong Zhang
Summary: This study used UAVs to obtain high-precision geospatial data and analyzed the shape and distribution of Spartina alterniflora using object-oriented classification and landscape pattern index. By considering microtopographic variations, the relationship between S. alterniflora distribution and expansion and the variation in microtopography and tidal hydrology was examined. The results showed that microtopography silted up acceleration from land to sea and the inundation time reduced significantly in the study area for 2020-2022. The expansion characteristics of S. alterniflora patches exhibited regional differences due to variation in microtopography.
ECOLOGICAL INDICATORS
(2023)
Article
Environmental Sciences
Yueming Wu, Zhanrui Leng, Jian Li, Hui Jia, Chongling Yan, Hualong Hong, Qiang Wang, Yanyan Lu, Daolin Du
Summary: Evidence suggests that the invasion of Spartina alterniflora poses serious risks to coastal wetland stability. The addition of sulfur can promote the growth of S. alterniflora and enhance its tolerance to cadmium, potentially exacerbating its expansion in contaminated areas.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Wenzhen Zhao, Xiuzhen Li, Liming Xue, Shiwei Lin, Yuxi Ma, Lin Su, Zeyuan Li, Lv Gong, Zhongzheng Yan, Peter I. Macreadie
Summary: Invasive Spartina alterniflora has become a global management challenge in coastal wetlands. China has decided to eradicate it completely, but concerns about the high costs and its provision of beneficial ecosystem functions have arisen. This study explores a reasonable pathway of S. alterniflora management that balances control of invasive species and ecosystem functions, providing a sustainable and flexible spatial strategy.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Environmental Sciences
Muhammad Waqas, Majid Nazeer, Man Sing Wong, Wu Shaolin, Li Hon, Joon Heo
Summary: The socio-economic restriction measures implemented in the United States have significantly reduced nitrogen dioxide (NO2) emissions. The study highlights the impact of factors such as human mobility, population density, income, climate, and stationary sources on the reduction of NO2 at different stations. The research emphasizes the scientific impacts of the NO2 reduction and income inequality revealed by the pandemic on air quality and health disparities.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Guorui Zhi, Jinhong Du, Aizhong Chen, Wenjing Jin, Na Ying, Zhihui Huang, Peng Xu, Di Wang, Jinghua Ma, Yuzhe Zhang, Jiabao Qu, Hao Zhang, Li Yang, Zhanyun Ma, Yanjun Ren, Hongyan Dang, Jianglong Cui, Pengchuan Lin, Zhuoshi He, Jinmin Zhao, Shuo Qi, Weiqi Zhang, Wenjuan Zhao, Yingxin Li, Qian Liu, Chen Zhao, Yi Tang, Peng Wei, Jingxu Wang, Zhen Song, Yao Kong, Xiangzhe Zhu, Yi Shen, Tianning Zhang, Yangxi Chu, Xinmin Zhang, Jiafeng Fu, Qingxian Gao, Jingnan Hu, Zhigang Xue
Summary: An comprehensive emission inventory for China in 2019, which includes both air pollutants and greenhouse gases, was developed in this study. The inventory utilizes existing frameworks and data to provide comparable emissions data and demonstrates the relationship between emissions and economic development.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
I-Ting Ku, Yong Zhou, Arsineh Hecobian, Katherine Benedict, Brent Buck, Emily Lachenmayer, Bryan Terry, Morgan Frazier, Jie Zhang, Da Pan, Lena Low, Amy Sullivan, Jeffrey L. Collett Jr
Summary: Unconventional oil and natural gas development (UOGD) in the United States has expanded rapidly in recent decades, raising concerns about its impact on air quality. This study conducted extensive air monitoring during the development of several large well pads in Broomfield, Colorado, providing a unique opportunity to examine changes in local air toxics and VOC concentrations during well drilling and completions and production. The study identified significant increases in VOC concentrations during drilling operations, highlighting the importance of emissions from synthetic drilling mud. The findings suggest opportunities to mitigate emissions during UOGD operations.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Puji Lestari, Akbar R. Tasrifani, Wiranda I. Suri, Martin J. Wooster, Mark J. Grosvenor, Yusuke Fujii, Vissia Ardiyani, Elisa Carboni, Gareth Thomas
Summary: This study developed field emission factors for various pollutants in peatland fires and estimated the total emissions. Gas samples were collected using an analyzer, while particulate samples were collected using air samplers. The study found significant emissions of CO2, CO, PM2.5, carbon aerosols, water-soluble ions, and elements from the fires in Central Kalimantan, Indonesia in 2019.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Ligang Li, Yuyu Chen, Lu Fan, Dong Sun, Hu He, Yongshou Dai, Yong Wan, Fangfang Chen
Summary: A high-precision retrieval method based on a deep convolutional neural network and satellite remote sensing data is proposed to obtain accurate methane vertical profiles.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Hyung Joo Lee, Toshihiro Kuwayama, Michael Fitzgibbon
Summary: This study investigated the changes in nitrogen dioxide (NO2) air pollution levels and their disparities in California, U.S. during the pandemic of coronavirus disease 2019 (COVID-19). The results showed a decrease in NO2 concentrations, especially in urban and high-traffic areas. However, socially vulnerable populations still experienced higher levels of NO2 exposure. The study suggests that reducing NO2 disparities, particularly racial inequity, can be achieved through continued regulatory actions targeting traffic-related NOx emissions.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Maria Chiara Pietrogrande, Beatrice Biffi, Cristina Colombi, Eleonora Cuccia, Umberto Dal Santo, Luisa Romanato
Summary: This study investigates the chemical composition and oxidative potential of PM10 particles in the Po Valley, Italy, and demonstrates the impact of high levels of atmosphere ammonia. The rural area had significantly higher ammonia concentrations compared to the urban site, resulting in higher levels of secondary inorganic aerosol. Although the SIA components did not contribute significantly to the PM10 oxidative reactivity, they were correlated with the oxidative potential measurements. This suggests that the contribution of SIA to PM oxidative toxicity cannot be ignored.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Natalie Allen, Jan Gacnik, Sarrah M. Dunham-Cheatham, Mae Sexauer Gustin
Summary: Accurate measurement of atmospheric reactive mercury is challenging due to its reactivity and low concentrations. The University of Nevada, Reno Reactive Mercury Active System (RMAS) has been shown to be more accurate than the industry standard, but has limitations including long time resolution and sampling biases. Increasing the sampling flow rate negatively affected RM concentrations, but did not impact the chemical composition of RM captured on membranes.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Chin-Yu Hsu, Wei-Ting Hsu, Ching-Yi Mou, Pei-Yi Wong, Chih-Da Wu, Yu-Cheng Chen
Summary: This study estimated the daily exposure concentrations of PM2.5 for elderly individuals residing in different regions of Taiwan using land use regression with machine learning (LUR_ML) and microenvironmental exposure (ME) models. The accuracy of the models varied across regions, with the ME models exhibiting higher predictions and lower biases. The use of region-specific microenvironmental measurements in the ME model showed potential for accurate prediction of personal PM2.5 exposure.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Xiaohan Si, Kerrie Mengersen, Chuchu Ye, Wenbiao Hu
Summary: This study found that there is an interactive effect between air pollutants and weather factors, which significantly affects influenza transmission. Future research should consider the interactive effects between pollutants and temperature or humidity to evaluate the environment-influenza association.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Luxi Xu, Ruijun Xu, Yunshao Ye, Rui Wang, Jing Wei, Chunxiang Shi, Qiaoxuan Lin, Ziquan Lv, Suli Huang, Qi Tian, Yuewei Liu
Summary: This study aimed to evaluate the impact of ambient air pollution on hospital admissions for angina. The results showed that exposure to ambient particulate matter, sulfur dioxide, nitrogen dioxide, carbon monoxide, and ozone are associated with an increased risk of hospital admissions for angina. The association with nitrogen dioxide exposure was found to be the strongest.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Xinyu Yu, Man Sing Wong, Majid Nazeer, Zhengqiang Li, Coco Yin Tung Kwok
Summary: This study proposes a novel method to address the challenge of missing values in satellite-derived AOD products and creates a comprehensive daily AOD dataset for the Guangdong-Hong Kong-Macao Greater Bay Area. By reconstructing missing values and developing a new model, the derived dataset outperforms existing products and agrees well with ground-based observations. Additionally, the dataset exhibits consistent temporal patterns and more spatial details.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Yidan Zhang, Yifan Xu, Bo Peng, Wu Chen, Xiaoyu Cui, Tianle Zhang, Xi Chen, Yuan Yao, Mingjin Wang, Junyi Liu, Mei Zheng, Tong Zhu
Summary: This study developed a sensitive method to measure the metallic components of atmospheric fine particulate matter (PM2.5) and compared the results with different analysis methods. The concentrations of metallic components in personal PM2.5 samples were found to be significantly different from corresponding fixed-site samples. Personal sampling can reduce exposure misclassifications, and measuring metallic components is useful for exploring health risks and identifying sources of PM2.5.
ATMOSPHERIC ENVIRONMENT
(2024)
Review
Environmental Sciences
Jamie Leonard, Lea Ann El Rassi, Mona Abdul Samad, Samantha Prehn, Sanjay K. Mohanty
Summary: Increasing concentrations of microplastics in the Earth's atmosphere could have adverse effects on ecosystems and human health. The deposition rate of airborne microplastics is influenced by both land use and climate, and a global analysis suggests that climate may have a greater impact on the concentration and deposition rate of microplastics than land use.
ATMOSPHERIC ENVIRONMENT
(2024)
Article
Environmental Sciences
Tian Zhou, Xiaowen Zhou, Zining Yang, Carmen Cordoba-Jabonero, Yufei Wang, Zhongwei Huang, Pengbo Da, Qiju Luo, Zhijuan Zhang, Jinsen Shi, Jianrong Bi, Hocine Alikhodja
Summary: This study investigated the long-range transport and effects of North African and Middle Eastern dust in East Asia using lidar observations and model simulations. The results showed that the dust originated from multiple sources and had a long transport time. The vertical distribution of the dust was found to be crucial for assessing its impacts.
ATMOSPHERIC ENVIRONMENT
(2024)