Article
Environmental Sciences
Xingyun Hu, Zhigao Sun
Summary: The research explored the effects of exogenous nitrogen import on the decomposition rates and nutrient variations of Suaeda salsa in coastal marsh of the Yellow River estuary. Results showed that higher nitrogen input led to faster decomposition rates and increased accumulation of nitrogen and phosphorus in the decomposing litters.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Hongli Song, Wanni Yu, Lizhi Wang, Wei Jiao, Bin Dong
Summary: This study investigated the effects of nitrogen input and sediment burial on biomass and absorption characteristics of a typical coastal wetland vegetation. The results showed that nitrogen input and sediment burial significantly influenced biomass allocation, sediment nitrogen content, and organ nitrogen content of the vegetation. Furthermore, the nitrogen absorption coefficient of the vegetation was affected by both sediment burial and nitrogen input.
ENVIRONMENTAL EARTH SCIENCES
(2022)
Article
Environmental Sciences
Hongli Song, Juan An, Qianjin Liu, Xiang Jin, Yuanzhi Wu, Xiyuan Wu, Yan Yan
Summary: The study found that high Cd content was harmful to the growth of S. salsa, resulting in decreased biomass. The plant demonstrated a survival strategy of absorbing Cd from sediment through roots and storing it in stems and leaves, with roots storing more Cd at higher Cd inputs. The accumulation factors of leaves, stems, and roots varied, and most accumulation factors were >1, indicating high Cd enrichment levels in roots.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Zhigao Sun, Linying Yu, Xingyun Hu, Bingbing Chen
Summary: This study investigated the effects of enhanced nitrogen load on phosphorus turnover in Suaeda salsa marsh in the Yellow River estuary. The results showed that increasing nitrogen load led to higher availability and lower non-available decomposed phosphorus in the soil. Suaeda salsa exhibited unique growth and phosphorus absorption characteristics under medium nitrogen load.
JOURNAL OF SOILS AND SEDIMENTS
(2023)
Article
Environmental Sciences
Zehao Zhang, Jingkuan Sun, Tian Li, Pengshuai Shao, Jinzhao Ma, Kaikai Dong
Summary: This study investigated the response of bacterial community to N and P imbalance input in the rhizosphere and bulk soil of S. salsa in the Yellow River Delta using high-throughput sequencing. The results showed that rhizosphere soil had higher alpha-diversity compared to bulk soil. N and P imbalance input had little effect on the rhizosphere soil bacterial community, but significantly increased the diversity and changed the composition of the bulk soil bacterial community. The differences in response were attributed to soil organic matter content.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Ecology
Fengkui Qian, Yang Zhou, Wanning Li, Xiangguo Wang, Zhentao Sun, Guize Liu, Haifeng Wei
Summary: This study analyzed the soil physicochemical properties and evaluated the soil ecological thresholds in degraded areas for the growth of SSuaeda salsa. The results showed that the soil particle composition became coarser and the salt content increased with the degree of wetland degradation. The pH of the soil varied with depth, while the nutrient concentrations did not change significantly. The optimal thresholds for soil salinity and water content were determined.
ECOSYSTEM HEALTH AND SUSTAINABILITY
(2022)
Article
Biochemistry & Molecular Biology
Shoule Wang, Shaoqing Ge, Wenxuan Mai, Changyan Tian
Summary: The application of nitrogen has an impact on the intercropping effect of euhalophyte/non-halophyte. In the intercropping of euhalophyte Suaeda salsa and non-halophyte Zea mays L., maize had lower biomass while Suaeda had higher biomass. Nitrate treatment helped alleviate salt damage and increase salt ion accumulation around Suaeda roots, positively affecting maize growth. Interspecific competition may contribute to the disadvantage in maize growth in the intercropping.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Oceanography
Xingyun Hu, Zhigao Sun, Linying Yu, Bingbing Chen
Summary: The effects of exogenous nitrogen enrichment on the distribution and transfer of nitrogen in Suaeda salsa marsh in the Yellow River Estuary were investigated through a field N addition experiment. The results showed that nitrogen additions increased the nitrogen contents in different soil layers, particularly in the topsoil. The accumulation and transfer of nitrogen in plant tissues were also affected by nitrogen enrichment.
JOURNAL OF OCEAN UNIVERSITY OF CHINA
(2023)
Article
Environmental Sciences
Hongli Song, Lin Kuang, Lizhi Wang, Wanni Yu, Yuanzhi Wu, Juan An, Xiyuan Wu
Summary: In order to improve the remediation of heavy metal pollution by wetland vegetation and maintain the health of wetland ecosystems, we evaluated the ecological risk of heavy metals in surface sediment in the Yellow River estuary affected by a water-sediment regulation scheme (WSRS). The study found that Cd posed a moderate potential risk, and the WSRS influenced the growth and heavy metal absorption of wetland vegetation in the downstream estuary.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Ecology
XueHong Wang, YuHan Zou, Tao Zhu, Bo Guan, JiSong Yang, JunBao Yu
Summary: Blocking of hydrological connectivity has significant impacts on sediment deposition, water and salinity, affecting plant germination, growth, and development in delta wetlands. Moderate salinity and fluctuating water levels are suitable for seed germination and plant growth, while extreme salinity and high water levels are detrimental. Water can offset the hazards of high salinity concentrations for the halophyte species.
FRONTIERS IN ECOLOGY AND EVOLUTION
(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.
Article
Engineering, Environmental
Xin Wang, Junhong Bai, Chen Wang, Tian Xie, Wei Wang, Dawei Wang, Guangliang Zhang
Summary: Our research aimed to find new resources for bacterial nitrification inhibitors (BNIs) and investigate their mechanisms of action through multiomics approaches. We discovered that leaf extracts from Suaeda salsa (both red and green phenotypes) in the Yellow River Delta showed strong nitrification inhibition ability. We identified oxalic acid (OA) and protocatechuic aldehyde (PA) as novel BNIs, constructed their synthetic pathways, identified key genes involved in their synthesis, and revealed their inhibition mechanisms on Nitrosomonas europaea using transcriptomics and metabolomics. Another finding was that PA exhibited nitrification inhibition effects in saline-alkali soil, cinnamon soil, and red soil, with the most effective inhibition in saline-alkali soil, while OA only showed nitrification inhibition effects in red soil.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Biodiversity Conservation
Chenchen Cao, Fangli Su, Fei Song, Huimin Yan, Qingzhuang Pang
Summary: The study focuses on evaluating the habitat suitability for Suaeda salsa ecological restoration, proposing targeted solutions based on interference factors and habitat quality, and indicating the impact of reclamation activities and aquaculture areas on habitat fragmentation.
ECOLOGICAL INDICATORS
(2022)
Article
Plant Sciences
Shoule Wang, Shaoqing Ge, Changyan Tian, Wenxuan Mai
Summary: Nitrogen application has significant effects on root distribution and ion uptake, which can improve salt tolerance in halophytes by altering root allocation.
Article
Plant Sciences
Shuyuan Wang, Yu Liu, Haixia Wang, Xiangfeng Ma, Qingqing Jiang, Jingwen Hu, Guoguang Wang
Summary: There is a sudden mortality problem in natural populations of Suaeda salsa in the Liaohe estuary wetland, Liaodong Bay, China, caused by high nitrogen runoffs from upstream agro-ecosystems. This study aims to comprehensively understand the mechanism underlying the effect of supra-optimal nitrogen on S. salsa through RNA-seq studies. The study found that both nitrate and ammonium nitrogen treatments resulted in decreased mass, sucrose, starch, soluble protein, and indoleacetic acid (IAA) content in S. salsa, along with down-regulation of certain genes and disrupted photosynthesis and plant hormone signal transduction.
JOURNAL OF PLANT GROWTH REGULATION
(2023)