Mangroves Invaded by Spartina alterniflora Loisel: A Remote Sensing-Based Comparison for Two Protected Areas in China DOI Open Access
Di Dong, Qing Gao,

Huamei Huang

et al.

Forests, Journal Year: 2024, Volume and Issue: 15(10), P. 1788 - 1788

Published: Oct. 11, 2024

Mangroves are one of the world’s most productive and ecologically important ecosystems, they threatened by widespread invasion Spartina alterniflora Loisel in China. As few studies have examined spatial pattern differences S. nearby mangroves different latitudes, we chose Zhangjiang Estuary Dandou Sea, two representative mangrove–salt marsh ecotones north south Tropic Cancer, as study areas for comparison. The object-based image analysis visual interpretation methods were combined to construct fine-scale mangrove maps using high-resolution satellite imagery from 2005 2019. We applied analysis, centroid migration, landscape indexes analyze spatio–temporal distribution changes these over time. used expansion index investigate process patterns. annual change rates showed a continuous growth trend. However, Sea fluctuating trend increasing, decreasing, then increasing again, while kept rising larger compared with mangroves, indicating rapid intertidal zones. opposite migration directions decreasing distances between centroids indirectly revealed fierce competition habitat resources. Both regions saw decrease patch integrality connectivity. patches was always higher than those Sea. observed stage (2011–2014) outbreak (2014–2019) (2005–2009) plateau (2009–2019) varies time place. Since is rapid, large rate, early warning quite efficient economical removal invasive plant. Continuous accurate monitoring highly necessary beneficial scientific management sustainable development coastal wetlands.

Language: Английский

Spatiotemporal Dynamics and Potential Distribution Prediction of Spartina alterniflora Invasion in Bohai Bay Based on Sentinel Time-Series Data and MaxEnt Modeling DOI Creative Commons
Qi Wang, Guangxu Cui, Haojie Liu

et al.

Remote Sensing, Journal Year: 2025, Volume and Issue: 17(6), P. 975 - 975

Published: March 10, 2025

The northward expansion of Spartina alterniflora (S. alterniflora) poses a profound ecological threat to coastal ecosystems and biodiversity along China’s coastline. This invasive species exhibits strong adaptability colder climates, facilitating its potential spread into northern regions underscoring the urgent need for nuanced understanding spatial distribution invasion risks inform evidence-based ecosystem management strategies. study employed multi-temporal Sentinel-1/2 imagery (2016–2022) map predict S. in Bohai Bay. An object-based random forest classification achieved an overall accuracy above 92% (κ = 0.978). Over six-year period, decreased from 46.60 km2 2016 12.56 2022, reflecting annual reduction approximately 5.67 km2. decline primarily resulted targeted eradication efforts, including physical removal, chemical treatments, biological competition Despite this local reduction, MaxEnt modeling suggests that climate trends habitat suitability continue support expansion, particularly high-risk areas such as Binhai New District, Shandong Yellow River Delta, Laizhou Bay tributary estuary. Key environmental drivers include maximum temperature warmest month, mean wettest quarter, isothermality, sea surface temperature, soil type. High-risk zones, covering about 95.65 These findings illuminate dynamics offer scientific guidance restoration strategies, ensuring protection fostering sustainable development.

Language: Английский

Citations

0
Coping with wave effects: Plasticity in physiology and biomechanics of Suaeda salsa colonization in the Yellow River Delta DOI

Yuanqin Shu,

Zhenming Zhang, Yanqi Wang

et al.

Ecological Engineering, Journal Year: 2024, Volume and Issue: 208, P. 107388 - 107388

Published: Sept. 6, 2024

Language: Английский

Citations

0
Mangroves Invaded by Spartina alterniflora Loisel: A Remote Sensing-Based Comparison for Two Protected Areas in China DOI Open Access
Di Dong, Qing Gao,

Huamei Huang

et al.

Forests, Journal Year: 2024, Volume and Issue: 15(10), P. 1788 - 1788

Published: Oct. 11, 2024

Mangroves are one of the world’s most productive and ecologically important ecosystems, they threatened by widespread invasion Spartina alterniflora Loisel in China. As few studies have examined spatial pattern differences S. nearby mangroves different latitudes, we chose Zhangjiang Estuary Dandou Sea, two representative mangrove–salt marsh ecotones north south Tropic Cancer, as study areas for comparison. The object-based image analysis visual interpretation methods were combined to construct fine-scale mangrove maps using high-resolution satellite imagery from 2005 2019. We applied analysis, centroid migration, landscape indexes analyze spatio–temporal distribution changes these over time. used expansion index investigate process patterns. annual change rates showed a continuous growth trend. However, Sea fluctuating trend increasing, decreasing, then increasing again, while kept rising larger compared with mangroves, indicating rapid intertidal zones. opposite migration directions decreasing distances between centroids indirectly revealed fierce competition habitat resources. Both regions saw decrease patch integrality connectivity. patches was always higher than those Sea. observed stage (2011–2014) outbreak (2014–2019) (2005–2009) plateau (2009–2019) varies time place. Since is rapid, large rate, early warning quite efficient economical removal invasive plant. Continuous accurate monitoring highly necessary beneficial scientific management sustainable development coastal wetlands.

Language: Английский

Citations

0