Long-term dynamics and driving mechanisms of plant communities in a temperate estuary in eastern China based on pollen analysis: a case study of the Liaohe Estuary
IntroductionThe Liaohe Estuary, a representative estuarine ecosystem in eastern China, has experienced significant shifts in plant community characteristics due to climate change and anthropogenic influences in recent decades.MethodsThis study employed sediment 210Pb dating, pollen analysis, and env...
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Frontiers Media S.A.
2025-04-01
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| Series: | Frontiers in Plant Science |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fpls.2025.1578390/full |
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| author | Haoran Liu Haoran Liu Haoran Liu Weiwei Liu Weiwei Liu Weiwei Liu Jinzhi Wang Jinzhi Wang Jinzhi Wang Wei Li Wei Li Wei Li Jingwen Zhang Jingwen Zhang Jingwen Zhang Jian Gong Jian Gong Jian Gong Lijuan Cui Lijuan Cui Lijuan Cui |
| author_facet | Haoran Liu Haoran Liu Haoran Liu Weiwei Liu Weiwei Liu Weiwei Liu Jinzhi Wang Jinzhi Wang Jinzhi Wang Wei Li Wei Li Wei Li Jingwen Zhang Jingwen Zhang Jingwen Zhang Jian Gong Jian Gong Jian Gong Lijuan Cui Lijuan Cui Lijuan Cui |
| author_sort | Haoran Liu |
| collection | DOAJ |
| description | IntroductionThe Liaohe Estuary, a representative estuarine ecosystem in eastern China, has experienced significant shifts in plant community characteristics due to climate change and anthropogenic influences in recent decades.MethodsThis study employed sediment 210Pb dating, pollen analysis, and environmental factor indicators to comprehensively assess the composition, trends, and drivers of plant communities in the Liaohe Estuary from 1944 to 2022.ResultsThe findings revealed that herbaceous plants dominated the estuary's vegetation under a cool and humid climate, though humidity exhibited a declining trend over time. Between 2001 and 2022, pollen concentration and herbaceous plant prevalence increased significantly. Key environmental drivers—mean annual temperature (MAT), salinity, grain size, pH, and agricultural production—were strongly correlated (p < 0.001) with plant community dynamics. Natural factors (grain size, salinity) enhanced the dominance of key species but reduced overall pollen concentration. Conversely, agricultural activities diminished dominant species proportions while increasing pollen concentration.DiscussionThese results highlight the dual influence of climatic and anthropogenic factors on estuarine vegetation. The study provides a theoretical basis for restoring degraded estuarine ecosystems. |
| format | Article |
| id | doaj-art-4f9d6eaa45bb42e9ae7b5538133e29b8 |
| institution | OA Journals |
| issn | 1664-462X |
| language | English |
| publishDate | 2025-04-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Plant Science |
| spelling | doaj-art-4f9d6eaa45bb42e9ae7b5538133e29b82025-08-20T02:19:58ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2025-04-011610.3389/fpls.2025.15783901578390Long-term dynamics and driving mechanisms of plant communities in a temperate estuary in eastern China based on pollen analysis: a case study of the Liaohe EstuaryHaoran Liu0Haoran Liu1Haoran Liu2Weiwei Liu3Weiwei Liu4Weiwei Liu5Jinzhi Wang6Jinzhi Wang7Jinzhi Wang8Wei Li9Wei Li10Wei Li11Jingwen Zhang12Jingwen Zhang13Jingwen Zhang14Jian Gong15Jian Gong16Jian Gong17Lijuan Cui18Lijuan Cui19Lijuan Cui20Key Laboratory of Wetland Conservation and Restoration, Chinese Academy of Forestry, Beijing, ChinaInstitute of Wetland Research, Chinese Academy of Forestry, Beijing, ChinaInstitute of Ecological Protection and Restoration Research, Chinese Academy of Forestry, Beijing, ChinaKey Laboratory of Wetland Conservation and Restoration, Chinese Academy of Forestry, Beijing, ChinaInstitute of Wetland Research, Chinese Academy of Forestry, Beijing, ChinaInstitute of Ecological Protection and Restoration Research, Chinese Academy of Forestry, Beijing, ChinaKey Laboratory of Wetland Conservation and Restoration, Chinese Academy of Forestry, Beijing, ChinaInstitute of Wetland Research, Chinese Academy of Forestry, Beijing, ChinaInstitute of Ecological Protection and Restoration Research, Chinese Academy of Forestry, Beijing, ChinaKey Laboratory of Wetland Conservation and Restoration, Chinese Academy of Forestry, Beijing, ChinaInstitute of Wetland Research, Chinese Academy of Forestry, Beijing, ChinaInstitute of Ecological Protection and Restoration Research, Chinese Academy of Forestry, Beijing, ChinaKey Laboratory of Wetland Conservation and Restoration, Chinese Academy of Forestry, Beijing, ChinaInstitute of Wetland Research, Chinese Academy of Forestry, Beijing, ChinaInstitute of Ecological Protection and Restoration Research, Chinese Academy of Forestry, Beijing, ChinaKey Laboratory of Wetland Conservation and Restoration, Chinese Academy of Forestry, Beijing, ChinaInstitute of Wetland Research, Chinese Academy of Forestry, Beijing, ChinaInstitute of Ecological Protection and Restoration Research, Chinese Academy of Forestry, Beijing, ChinaKey Laboratory of Wetland Conservation and Restoration, Chinese Academy of Forestry, Beijing, ChinaInstitute of Wetland Research, Chinese Academy of Forestry, Beijing, ChinaInstitute of Ecological Protection and Restoration Research, Chinese Academy of Forestry, Beijing, ChinaIntroductionThe Liaohe Estuary, a representative estuarine ecosystem in eastern China, has experienced significant shifts in plant community characteristics due to climate change and anthropogenic influences in recent decades.MethodsThis study employed sediment 210Pb dating, pollen analysis, and environmental factor indicators to comprehensively assess the composition, trends, and drivers of plant communities in the Liaohe Estuary from 1944 to 2022.ResultsThe findings revealed that herbaceous plants dominated the estuary's vegetation under a cool and humid climate, though humidity exhibited a declining trend over time. Between 2001 and 2022, pollen concentration and herbaceous plant prevalence increased significantly. Key environmental drivers—mean annual temperature (MAT), salinity, grain size, pH, and agricultural production—were strongly correlated (p < 0.001) with plant community dynamics. Natural factors (grain size, salinity) enhanced the dominance of key species but reduced overall pollen concentration. Conversely, agricultural activities diminished dominant species proportions while increasing pollen concentration.DiscussionThese results highlight the dual influence of climatic and anthropogenic factors on estuarine vegetation. The study provides a theoretical basis for restoring degraded estuarine ecosystems.https://www.frontiersin.org/articles/10.3389/fpls.2025.1578390/fullplant community characteristicsestuarypollen analysisenvironmental factorshuman activities |
| spellingShingle | Haoran Liu Haoran Liu Haoran Liu Weiwei Liu Weiwei Liu Weiwei Liu Jinzhi Wang Jinzhi Wang Jinzhi Wang Wei Li Wei Li Wei Li Jingwen Zhang Jingwen Zhang Jingwen Zhang Jian Gong Jian Gong Jian Gong Lijuan Cui Lijuan Cui Lijuan Cui Long-term dynamics and driving mechanisms of plant communities in a temperate estuary in eastern China based on pollen analysis: a case study of the Liaohe Estuary Frontiers in Plant Science plant community characteristics estuary pollen analysis environmental factors human activities |
| title | Long-term dynamics and driving mechanisms of plant communities in a temperate estuary in eastern China based on pollen analysis: a case study of the Liaohe Estuary |
| title_full | Long-term dynamics and driving mechanisms of plant communities in a temperate estuary in eastern China based on pollen analysis: a case study of the Liaohe Estuary |
| title_fullStr | Long-term dynamics and driving mechanisms of plant communities in a temperate estuary in eastern China based on pollen analysis: a case study of the Liaohe Estuary |
| title_full_unstemmed | Long-term dynamics and driving mechanisms of plant communities in a temperate estuary in eastern China based on pollen analysis: a case study of the Liaohe Estuary |
| title_short | Long-term dynamics and driving mechanisms of plant communities in a temperate estuary in eastern China based on pollen analysis: a case study of the Liaohe Estuary |
| title_sort | long term dynamics and driving mechanisms of plant communities in a temperate estuary in eastern china based on pollen analysis a case study of the liaohe estuary |
| topic | plant community characteristics estuary pollen analysis environmental factors human activities |
| url | https://www.frontiersin.org/articles/10.3389/fpls.2025.1578390/full |
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