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This study aims to understand how wetland vegetation distribution responds to changes in inundation processes in Dongting Lake.

June 14, 2026SustainabilityOpen Access

Response Patterns of Wetland Vegetation Distribution to Changes in Inundation Processes in the Dongting Lake Wetland

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This study aims to understand how wetland vegetation distribution responds to changes in inundation processes in Dongting Lake.
Analyzed long-term water level data (1992–2023) and multi-temporal Landsat images (1997–2022).
Utilized a digital elevation model to assess spatial and temporal changes in inundation patterns.
Employed a stepwise regression model to identify key driving factors of landscape pattern variation.
After the operation of the Three Gorges Project (TGP), the annual mean water level dropped by approximately 0.7 m in East Dongting Lake.
Inundation frequency (F) and duration (T) significantly influenced landscape diversity (SHDI) and connectivity (COHESION).
Establishing optimal hydrological ranges (F 0.40–0.50; T 4–5 months) is crucial for maintaining wetland ecosystem stability.

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Randomized trial analyzes wetland vegetation shifts due to inundation changes in Dongting Lake, suggesting key ecological implications.

Zhang et al. (2026) studied this question.

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