Article
Agronomy
Chiquan He, Liyu Cheng, Daoyuan Wang, Zhenzhen Zhao, Zhengyu Wang, Feifei Wang, Xiaoxi Wang, Pu Zhang, Xueping Chen, Xiaoyan Liu
Summary: The invasion of Spartina alterniflora led to an increase in sulfide, soil organic carbon, and total nitrogen contents, while reducing the abundance of sulfur-oxidizing functional genes, resulting in the accumulation of soil sulfide.
Article
Environmental Sciences
Min Xiao, Tinglu Cai, Xinkai Wang, Jie Cheng, Bing Liu, Xiaoming Xia, Yining Chen
Summary: This study investigated and compared the effects of sediment addition on S. mariqueter and S. alterniflora. The results showed that sediment addition significantly affected the growth of vegetation, but the extent of the effects varied between the two species. S. mariqueter benefited from low to moderate sediment addition (3-6 cm), while S. alterniflora benefitted from increasing sediment addition to a certain point. These findings have important implications for saltmarsh restoration and interspecific competition in high sediment environments.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Soil Science
Chiquan He, Xiaoxi Wang, Daoyuan Wang, Zhenzhen Zhao, Feifei Wang, Liyu Cheng, Haiyue Feng, Pu Zhang
Summary: The study found that the invasion of Spartina alterniflora increased soil CO2 emission, positively correlated with aboveground biomass, SOC, and NH4+-N concentration. Additionally, the invasion led to an increase in soil CH4 emission, positively related to aboveground biomass, SOC, and NH4+-N concentration, while negatively correlated with NO3--N concentration.
APPLIED SOIL ECOLOGY
(2021)
Article
Remote Sensing
Yukui Min, Liyue Cui, Jinyuan Li, Yue Han, Zhaojun Zhuo, Xiaolan Yin, Demin Zhou, Yinghai Ke
Summary: The invasion of Spartina alterniflora poses significant threats to coastal wetlands in China. This study presents a novel method for the automatic detection of S. alterniflora removal events and timing using satellite imagery. The method achieved good accuracies in detecting removal events in two study areas.
INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION
(2023)
Article
Environmental Sciences
Jin-E Liu, Dailan Deng, Caiyu Zou, Ruiming Han, Yue Xin, Zihao Shu, Li-min Zhang
Summary: The research aimed to investigate S. alterniflora saltmarshes in 10 regions to determine the major sources of soil organic carbon (SOC) and provide data for SOC content in Chinese coastal wetlands under exotic invasion. The results showed that the properties of S. alterniflora saltmarsh SOC pool varied significantly between study areas due to local circumstances and carbon exchanges, with terrigenous carbon inputs dominating in Chinese coastal wetlands and marine-derived organic carbon increasing from northern to southern areas.
JOURNAL OF SOILS AND SEDIMENTS
(2021)
Article
Environmental Sciences
Dandan Wang, Shu Gao, Yangyang Zhao, Antonis Chatzipavlis, Yunzhen Chen, Jianhua Gao, Yongqiang Zhao
Summary: A new eco-parametric method was developed to estimate sedimentation rate in newly-formed wetlands in Yancheng Wetland Nature Reserve in Jiangsu. By analyzing sediment cores and satellite imagery, researchers identified sediment layers thickness and time of Spartina colonization, providing insights into recent sedimentation events and environmental changes in the area.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Plant Sciences
Sean J. Sharp, Christine Angelini
Summary: Disturbances are increasing in frequency and scale with climate change, benefiting opportunistic species exploiting areas where habitat-forming species have been removed. Birds, through parasite transmission to snails, appear to work synergistically with snail-consuming nekton to slow cordgrass loss.
JOURNAL OF ECOLOGY
(2021)
Article
Soil Science
Bin Wang, Xianbiao Lin
Summary: The wide and rapid invasion of Spartina alterniflora threatens the sustainability of coastal wetlands in China and negatively impacts sediment biogeochemical processes. This study investigated the effects of this invasive species on sediment nitrate reduction processes in mangrove wetlands. The results showed significant spatial differences in denitrification, dissimilatory nitrate reduction to ammonium, and their contributions among different plant communities. Spartina alterniflora invasion increased sediment nitrogen loss while reducing nitrogen retention in mangrove wetlands, posing a threat to their buffer function and nitrogen pools protection in estuarine and coastal ecosystems.
Article
Environmental Sciences
Jiaguo Yan, Zhenchang Zhu, Jie Zhou, Xun Chu, Haochen Sui, Baoshan Cui, Tjisse van der Heide
Summary: Research shows that large patches can trap more shells and facilitate plant regrowth, enhancing their own persistence. In contrast, small patches without enough plants cannot persist, with a critical threshold of around 20 square meters below which ecosystem collapse occurs.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Limnology
Sikai Wang, Qiang He, Youzheng Zhang, Qiang Sheng, Bo Li, Jihua Wu
Summary: The study found that the invasion of Spartina alterniflora significantly altered the functional composition of benthic food webs in unvegetated habitats, driven by both trophic and nontrophic effects. However, in vegetated native habitats, the replacement of native plants by Spartina led to a shift in consumer diet but did not significantly alter the functional composition of benthic food webs. The relative importance of trophic and nontrophic effects of plant invasions on benthic food webs varied with habitat structure.
LIMNOLOGY AND OCEANOGRAPHY
(2021)
Article
Environmental Sciences
Runqiu Huang, Junyu He, Nan Wang, George Christakos, Jiali Gu, Li Song, Ji Luo, Susana Agusti, Carlos M. Duarte, Jiaping Wu
Summary: Coastal blue carbon ecosystems have promising benefits for climate change mitigation and adaptation. Research shows that mangrove transplantation and Spartina alterniflora invasion have significant effects on the carbon sequestration potential of coastal wetlands. Additionally, plant-derived organic carbon can be exported to the surrounding environment due to rapid sediment turnover.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
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
Marine & Freshwater Biology
Wendy Ampuero Reyes, Gail L. Chmura
Summary: This study systematically investigated the contribution of belowground plant material to soil accretion in tidal salt marshes. The results showed that the traditional method of measuring carbon density underestimates the true contribution of salt marsh plants to soil accretion.
ESTUARINE COASTAL AND SHELF SCIENCE
(2022)
Article
Environmental Sciences
Zhanpeng Wang, Yinghai Ke, Dan Lu, Zhaojun Zhuo, Qingqing Zhou, Yue Han, Peiyu Sun, Zhaoning Gong, Demin Zhou
Summary: This study presents an approach for estimating and mapping the fractional cover of major saltmarsh species in the Yellow River Delta, China using remote sensing data and ensemble learning models. The approach successfully estimated the fractional cover of each saltmarsh species and improved the estimation accuracy through cloud removal and high-resolution reference imagery.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Environmental Studies
Jing Zhang, Yan Zhang, Huw Lloyd, Zhengwang Zhang, Donglai Li
Summary: The Suaeda salsa saltmarshes are vital coastal wetland habitats in China's northern Yellow Sea, playing key roles in carbon sequestration, shoreline protection, biodiversity maintenance, and economic value. However, rapid declines in S. salsa saltmarshes have been observed due to threats like reclamation and invasive species, impacting natural succession. Land reclamation is identified as the primary factor driving the loss of S. salsa saltmarshes, with emergency conservation actions recommended to halt habitat loss and restore balance.