Simulation of suitable habitats for typical vegetation in the Yellow River Estuary based on complex hydrodynamic processes
Estuarine ecosystems are influenced by the combination of freshwater runoff and ocean tides, and the natural environment is intricate and complex, with special natural environmental conditions and biological habitat characteristics. The Yellow River is characterized by high sediment-bearing water fl...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-10-01
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| Series: | Ecological Indicators |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1470160X23007653 |
| _version_ | 1797683110959120384 |
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| author | Yanning Gao Yujun Yi Kebing Chen Hongyi Xie |
| author_facet | Yanning Gao Yujun Yi Kebing Chen Hongyi Xie |
| author_sort | Yanning Gao |
| collection | DOAJ |
| description | Estuarine ecosystems are influenced by the combination of freshwater runoff and ocean tides, and the natural environment is intricate and complex, with special natural environmental conditions and biological habitat characteristics. The Yellow River is characterized by high sediment-bearing water flow, and the estuary forms a unique clear and turbid confluence. The Water and Sand Regulation (WSRS) from the Xiaolangdi Reservoir to the estuary and nearshore has had significant impacts on the environmental conditions of water, sediment and nutrients, further affecting the growth and development of vegetation in the nearshore zone. In recent years, more studies have focused on the effects of climate change and ocean tides on vegetation in the Yellow River Estuary; however, few studies have been conducted on the effects of the WSRS on klysmoeionion. In this study, we investigated the influence of water flow, sediment and nutrients on klysmoeionion based on long-term field monitoring and indoor control experiments; constructed a three-dimensional hydrodynamic water quality model to simulate the hydrodynamic characteristics, sediment transport patterns and nutrient salt distribution in the Yellow River Estuary under the combined influence of tides and riverine water and sediment; and further combined the growth competition model of typical vegetation (including the native species Zostera japonica and invasive species Spartina alterniflora) to construct a suitable habitat simulation model for typical vegetation communities in the Yellow River Estuary. Habitat and biomass changes in Z. japonica and S. alterniflora in the Yellow River Estuary were simulated under the influence of the WSRS and climate change. The results showed that the distribution of suitable habitats for Z. japonica and S. alterniflora in the Yellow River Estuary and offshore was characterized by a zonal distribution along both sides of the estuary, with an increasing trend of suitable habitat area from the estuary to both sides of the estuary; due to environmental conditions and inter- and intra-species competition, the biomass of Z. japonica and S. alterniflora was mainly distributed in the estuary and near the northern and southern shores, with the southern shore have the most distribution. In contrast, S. alterniflora was mainly distributed in the northern shore away from the estuary and in Laizhou Bay. During the WSRS period, the suitable habitat area of Z. japonica decreased by 25%, and the biomass decreased by 50%, while the suitable habitat and biomass of S. alterniflora were not significantly affected. The growth of Z. japonica was severely affected by the dual effects of global warming and the WSRS, while the biomass of S. alterniflora showed an increasing trend. The WSRS can further consider the growth pattern of vegetation to protect the resources of Z. japonica and to curb the expansion of the invasive S. alterniflora. |
| first_indexed | 2024-03-12T00:09:44Z |
| format | Article |
| id | doaj.art-08fa2a252dd841c78d12b1bda9434956 |
| institution | Directory Open Access Journal |
| issn | 1470-160X |
| language | English |
| last_indexed | 2024-03-12T00:09:44Z |
| publishDate | 2023-10-01 |
| publisher | Elsevier |
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| series | Ecological Indicators |
| spelling | doaj.art-08fa2a252dd841c78d12b1bda94349562023-09-16T05:29:29ZengElsevierEcological Indicators1470-160X2023-10-01154110623Simulation of suitable habitats for typical vegetation in the Yellow River Estuary based on complex hydrodynamic processesYanning Gao0Yujun Yi1Kebing Chen2Hongyi Xie3Ministry of Education Key Laboratory of Water and Sediment Science, School of Environment, Beijing Normal University, Beijing 100875, China; School of Government, Beijing Normal University, Beijing 100875, ChinaMinistry of Education Key Laboratory of Water and Sediment Science, School of Environment, Beijing Normal University, Beijing 100875, China; State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China; Corresponding author at: Ministry of Education Key Laboratory of Water and Sediment Science, School of Environment, Beijing Normal University, Beijing 100875, China.Ministry of Education Key Laboratory of Water and Sediment Science, School of Environment, Beijing Normal University, Beijing 100875, China; State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, ChinaDepartment of Environmental Science and Engineering, Fudan University, Shanghai 200433, ChinaEstuarine ecosystems are influenced by the combination of freshwater runoff and ocean tides, and the natural environment is intricate and complex, with special natural environmental conditions and biological habitat characteristics. The Yellow River is characterized by high sediment-bearing water flow, and the estuary forms a unique clear and turbid confluence. The Water and Sand Regulation (WSRS) from the Xiaolangdi Reservoir to the estuary and nearshore has had significant impacts on the environmental conditions of water, sediment and nutrients, further affecting the growth and development of vegetation in the nearshore zone. In recent years, more studies have focused on the effects of climate change and ocean tides on vegetation in the Yellow River Estuary; however, few studies have been conducted on the effects of the WSRS on klysmoeionion. In this study, we investigated the influence of water flow, sediment and nutrients on klysmoeionion based on long-term field monitoring and indoor control experiments; constructed a three-dimensional hydrodynamic water quality model to simulate the hydrodynamic characteristics, sediment transport patterns and nutrient salt distribution in the Yellow River Estuary under the combined influence of tides and riverine water and sediment; and further combined the growth competition model of typical vegetation (including the native species Zostera japonica and invasive species Spartina alterniflora) to construct a suitable habitat simulation model for typical vegetation communities in the Yellow River Estuary. Habitat and biomass changes in Z. japonica and S. alterniflora in the Yellow River Estuary were simulated under the influence of the WSRS and climate change. The results showed that the distribution of suitable habitats for Z. japonica and S. alterniflora in the Yellow River Estuary and offshore was characterized by a zonal distribution along both sides of the estuary, with an increasing trend of suitable habitat area from the estuary to both sides of the estuary; due to environmental conditions and inter- and intra-species competition, the biomass of Z. japonica and S. alterniflora was mainly distributed in the estuary and near the northern and southern shores, with the southern shore have the most distribution. In contrast, S. alterniflora was mainly distributed in the northern shore away from the estuary and in Laizhou Bay. During the WSRS period, the suitable habitat area of Z. japonica decreased by 25%, and the biomass decreased by 50%, while the suitable habitat and biomass of S. alterniflora were not significantly affected. The growth of Z. japonica was severely affected by the dual effects of global warming and the WSRS, while the biomass of S. alterniflora showed an increasing trend. The WSRS can further consider the growth pattern of vegetation to protect the resources of Z. japonica and to curb the expansion of the invasive S. alterniflora.http://www.sciencedirect.com/science/article/pii/S1470160X23007653Zostera japonicaSpartina alternifloraYellow River EstuaryMarine ecosystem dynamicsSuitable habitat |
| spellingShingle | Yanning Gao Yujun Yi Kebing Chen Hongyi Xie Simulation of suitable habitats for typical vegetation in the Yellow River Estuary based on complex hydrodynamic processes Ecological Indicators Zostera japonica Spartina alterniflora Yellow River Estuary Marine ecosystem dynamics Suitable habitat |
| title | Simulation of suitable habitats for typical vegetation in the Yellow River Estuary based on complex hydrodynamic processes |
| title_full | Simulation of suitable habitats for typical vegetation in the Yellow River Estuary based on complex hydrodynamic processes |
| title_fullStr | Simulation of suitable habitats for typical vegetation in the Yellow River Estuary based on complex hydrodynamic processes |
| title_full_unstemmed | Simulation of suitable habitats for typical vegetation in the Yellow River Estuary based on complex hydrodynamic processes |
| title_short | Simulation of suitable habitats for typical vegetation in the Yellow River Estuary based on complex hydrodynamic processes |
| title_sort | simulation of suitable habitats for typical vegetation in the yellow river estuary based on complex hydrodynamic processes |
| topic | Zostera japonica Spartina alterniflora Yellow River Estuary Marine ecosystem dynamics Suitable habitat |
| url | http://www.sciencedirect.com/science/article/pii/S1470160X23007653 |
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