Physiological Responses of Typical Wetland Plants Following Flooding Process—From an Eco-Hydrological Model Perspective

Anaerobics increase resistance to gas transport and microbial activity in flooded soils. This may result the presence of aerenchyma roots some wetland plants. Increased airspaces enable oxygen be transported from above-ground plant parts submerged rhizosphere. Nevertheless, there is still a lack studies linking field experiments eco-hydrological modeling parameterization physiological responses typical species natural flooding events. Furthermore, perspective, contribution was not sufficiently considered. The goal this study develop apply an model capable simulating various patterns events based on key processes root diffusion functioning variably-saturated soil environment. Eco-hydrological were conducted accordingly, with surface water level, root-zone content, temperature, leaf net photosynthesis rate morphology monitored simultaneously situ at site dominated by meadow Deyeuxia angustifolia (Kom.) Y. L. Chang invaded shrub Salix rosmarinifolia Linn. var. brachypoda (Trautv.et Mey.) Y.L. Chou floodplain wetland. results are as follows: (1) Root respiration rates strongly correlated two types, particularly under conditions during growing season; (2) Meadow preference for wet microhabitats has competitive advantage over first-year invading events; (3) sub-model could improve model’s accuracy capturing responses. These findings have potential contribute management its restorations.